Merge remote-tracking branch 'origin/develop_2.0' into java-accept-contenttype

Conflicts:
	modules/swagger-codegen/src/main/java/com/wordnik/swagger/codegen/languages/JavaClientCodegen.java
	modules/swagger-codegen/src/main/resources/Java/ApiClient.mustache
	modules/swagger-codegen/src/main/resources/Java/api.mustache
	samples/client/petstore/java/src/main/java/io/swagger/client/ApiClient.java
	samples/client/petstore/java/src/main/java/io/swagger/client/api/PetApi.java
	samples/client/petstore/java/src/main/java/io/swagger/client/api/StoreApi.java
	samples/client/petstore/java/src/main/java/io/swagger/client/api/UserApi.java

LICENSE

@@ -0,0 +1,11 @@
+Copyright 2015 SmartBear Software
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at [apache.org/licenses/LICENSE-2.0](http://www.apache.org/licenses/LICENSE-2.0)
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

README.md

@@ -60,6 +60,8 @@ NAME
 
 SYNOPSIS
         swagger generate [(-a <authorization> | --auth <authorization>)]
+                [(-c <configuration file> | --config <configuration file>)]
+                [-D <system properties>]
                 (-i <spec file> | --input-spec <spec file>)
                 (-l <language> | --lang <language>)
                 [(-o <output directory> | --output <output directory>)]
@@ -72,6 +74,16 @@ OPTIONS
             remotely. Pass in a URL-encoded string of name:header with a comma
             separating multiple values
 
+        -c <configuration file>, --config <configuration file>
+            Path to json configuration file. File content should be in a json
+            format {"optionKey":"optionValue", "optionKey1":"optionValue1"...}
+            Supported options can be different for each language. Run
+            config-help -l {lang} command for language specific config options.
+
+        -D <system properties>
+            sets specified system properties in the format of
+            name=value,name=value
+
         -i <spec file>, --input-spec <spec file>
             location of the swagger spec, as URL or file (required)
 
@@ -166,8 +178,60 @@ SwaggerYamlGenerator.java
 TizenClientCodegen.java
 ```
 
-Each of these files creates reasonable defaults so you can get running quickly.  But if you want to configure package names, prefixes, model folders, etc., you may want to extend these.
+Each of these files creates reasonable defaults so you can get running quickly.  But if you want to configure package names, prefixes, model folders, etc. you can use a json config file to pass the values.
 
+```
+java -jar modules/swagger-codegen-cli/target/swagger-codegen-cli.jar generate \
+  -i http://petstore.swagger.io/v2/swagger.json \
+  -l java \
+  -o samples/client/petstore/java \
+  -c path/to/config.json
+```
+Supported config options can be different per language. Running `config-help -l {lang}` will show available options.
+
+```
+java -jar modules/swagger-codegen-cli/target/swagger-codegen-cli.jarr config-help -l java
+```
+
+Output
+
+```
+CONFIG OPTIONS
+	modelPackage
+	    package for generated models
+
+	apiPackage
+	    package for generated api classes
+
+	invokerPackage
+	    root package for generated code
+
+	groupId
+	    groupId in generated pom.xml
+
+	artifactId
+	    artifactId in generated pom.xml
+
+	artifactVersion
+	    artifact version in generated pom.xml
+
+	sourceFolder
+	    source folder for generated code
+```
+
+Your config file for java can look like
+
+```
+{
+  "groupId":"com.my.company",
+  "artifactId":"MyClent",
+  "artifactVersion":"1.2.0"
+}
+```
+
+For all the unspecified options default values will be used.
+
+Another way to override default options is to extend config class for specific language.
 To change, for example, the prefix for the Objective-C generated files, simply subclass the ObjcClientCodegen.java:
 
 ```
@@ -273,7 +337,7 @@ Note!  The templates are included in the library generated.  If you want to modi
 License
 -------
 
-Copyright 2015 Reverb Technologies, Inc.
+Copyright 2015 SmartBear Software
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.

bin/all-petstore.sh

@@ -27,6 +27,7 @@ cd $APP_DIR
 ./bin/qt5-petstore.sh
 ./bin/php-petstore.sh
 ./bin/python-petstore.sh
+./bin/retrofit-petstore.sh
 ./bin/ruby-petstore.sh
 ./bin/objc-petstore.sh
 ./bin/scala-petstore.sh

bin/retrofit-petstore.sh

@@ -0,0 +1,31 @@
+#!/bin/sh
+
+SCRIPT="$0"
+
+while [ -h "$SCRIPT" ] ; do
+  ls=`ls -ld "$SCRIPT"`
+  link=`expr "$ls" : '.*-> \(.*\)$'`
+  if expr "$link" : '/.*' > /dev/null; then
+    SCRIPT="$link"
+  else
+    SCRIPT=`dirname "$SCRIPT"`/"$link"
+  fi
+done
+
+if [ ! -d "${APP_DIR}" ]; then
+  APP_DIR=`dirname "$SCRIPT"`/..
+  APP_DIR=`cd "${APP_DIR}"; pwd`
+fi
+
+executable="./modules/swagger-codegen-cli/target/swagger-codegen-cli.jar"
+
+if [ ! -f "$executable" ]
+then
+  mvn clean package
+fi
+
+# if you've executed sbt assembly previously it will use that instead.
+export JAVA_OPTS="${JAVA_OPTS} -XX:MaxPermSize=256M -Xmx1024M -DloggerPath=conf/log4j.properties"
+ags="$@ generate -t modules/swagger-codegen/src/main/resources/retrofit -i modules/swagger-codegen/src/test/resources/2_0/petstore.json -l retrofit -o samples/client/petstore/retrofit"
+
+java $JAVA_OPTS -jar $executable $ags

modules/swagger-codegen-cli/src/main/java/com/wordnik/swagger/codegen/SwaggerCodegen.java

@@ -1,5 +1,6 @@
 package com.wordnik.swagger.codegen;
 
+import com.wordnik.swagger.codegen.cmd.ConfigHelp;
 import com.wordnik.swagger.codegen.cmd.Generate;
 import com.wordnik.swagger.codegen.cmd.Langs;
 import com.wordnik.swagger.codegen.cmd.Meta;
@@ -27,7 +28,8 @@ public class SwaggerCodegen {
                         Generate.class,
                         Meta.class,
                         Langs.class,
-                        Help.class
+                        Help.class,
+                        ConfigHelp.class
                 );
 
         builder.build().parse(args).run();

modules/swagger-codegen-cli/src/main/java/com/wordnik/swagger/codegen/cmd/ConfigHelp.java

@@ -0,0 +1,49 @@
+package com.wordnik.swagger.codegen.cmd;
+
+import com.wordnik.swagger.codegen.CliOption;
+import com.wordnik.swagger.codegen.CodegenConfig;
+import io.airlift.airline.Command;
+import io.airlift.airline.Option;
+import java.util.ServiceLoader;
+import static java.util.ServiceLoader.load;
+
+@Command(name = "config-help", description = "Config help for chosen lang")
+public class ConfigHelp implements Runnable {
+    
+    @Option(name = {"-l", "--lang"}, title = "language", required = true,
+            description = "language to get config help for")
+    private String lang;
+
+    @Override
+    public void run() {
+        System.out.println();
+        CodegenConfig config = forName(lang);
+        System.out.println("CONFIG OPTIONS");
+        for (CliOption langCliOption : config.cliOptions()) {
+            System.out.println("\t" + langCliOption.getOpt());
+            System.out.println("\t    " + langCliOption.getDescription());
+            System.out.println();
+        }
+    }
+    
+    /**
+     * Tries to load config class with SPI first, then with class name directly from classpath
+     * @param name name of config, or full qualified class name in classpath
+     * @return config class
+     */
+    private static CodegenConfig forName(String name) {
+        ServiceLoader<CodegenConfig> loader = load(CodegenConfig.class);
+        for (CodegenConfig config : loader) {
+            if (config.getName().equals(name)) {
+                return config;
+            }
+        }
+
+        // else try to load directly
+        try {
+            return (CodegenConfig) Class.forName(name).newInstance();
+        } catch (Exception e) {
+            throw new RuntimeException("Can't load config class with name ".concat(name), e);
+        }
+    }
+}

modules/swagger-codegen-cli/src/main/java/com/wordnik/swagger/codegen/cmd/Generate.java

@@ -1,10 +1,13 @@
 package com.wordnik.swagger.codegen.cmd;
 
+import com.wordnik.swagger.codegen.CliOption;
 import com.wordnik.swagger.codegen.ClientOptInput;
 import com.wordnik.swagger.codegen.ClientOpts;
 import com.wordnik.swagger.codegen.CodegenConfig;
 import com.wordnik.swagger.codegen.DefaultGenerator;
 import com.wordnik.swagger.models.Swagger;
+import config.Config;
+import config.ConfigParser;
 import io.airlift.airline.Command;
 import io.airlift.airline.Option;
 import io.swagger.parser.SwaggerParser;
@@ -58,6 +61,11 @@ public class Generate implements Runnable {
             "the format of name=value,name=value")
     private String systemProperties;
     
+    @Option( name= {"-c", "--config"}, title = "configuration file", description = "Path to json configuration file. " +
+            "File content should be in a json format {\"optionKey\":\"optionValue\", \"optionKey1\":\"optionValue1\"...} " +
+            "Supported options can be different for each language. Run config-help -l {lang} command for language specific config options.")
+    private String configFile;
+
     @Override
     public void run() {
         verbosed(verbose);
@@ -77,6 +85,17 @@ public class Generate implements Runnable {
             config.additionalProperties().put(TEMPLATE_DIR_PARAM, new File(templateDir).getAbsolutePath());
         }
         
+        if(null != configFile){
+            Config genConfig = ConfigParser.read(configFile);
+            if (null != genConfig) {
+                for (CliOption langCliOption : config.cliOptions()) {
+                    if (genConfig.hasOption(langCliOption.getOpt())) {
+                       config.additionalProperties().put(langCliOption.getOpt(), genConfig.getOption(langCliOption.getOpt()));
+                    }
+                }
+            }
+        }
+
         input.setConfig(config);
 
         Swagger swagger = new SwaggerParser().read(spec, input.getAuthorizationValues(), true);

modules/swagger-codegen/src/main/java/com/wordnik/swagger/codegen/CliOption.java

@@ -0,0 +1,23 @@
+package com.wordnik.swagger.codegen;
+
+public class CliOption {
+  private final String opt;
+  private String description;
+
+  public CliOption(String opt, String description) {
+    this.opt = opt;
+    this.description = description;
+  }
+
+  public String getOpt() {
+    return opt;
+  }
+
+  public String getDescription() {
+    return description;
+  }
+
+  public void setDescription(String description) {
+    this.description = description;
+  }
+}

modules/swagger-codegen/src/main/java/com/wordnik/swagger/codegen/CodegenConfig.java

@@ -27,6 +27,7 @@ public interface CodegenConfig {
   String getTypeDeclaration(Property p);
   String getTypeDeclaration(String name);
   void processOpts();
+  List<CliOption> cliOptions();
   String generateExamplePath(String path, Operation operation);
 
   Set<String> reservedWords();

modules/swagger-codegen/src/main/java/com/wordnik/swagger/codegen/CodegenOperation.java

@@ -7,7 +7,7 @@ import java.util.*;
 public class CodegenOperation {
   public Boolean hasConsumes, hasProduces, hasParams, returnTypeIsPrimitive,
     returnSimpleType, subresourceOperation, isMapContainer, isListContainer,
-    hasMore = Boolean.TRUE;
+    hasMore = Boolean.TRUE, isMultipart;
   public String path, operationId, returnType, httpMethod, returnBaseType,
     returnContainer, summary, notes, baseName, defaultResponse;
 

modules/swagger-codegen/src/main/java/com/wordnik/swagger/codegen/DefaultCodegen.java

@@ -77,11 +77,24 @@ public class DefaultCodegen {
   protected String templateDir;
   protected Map<String, Object> additionalProperties = new HashMap<String, Object>();
   protected List<SupportingFile> supportingFiles = new ArrayList<SupportingFile>();
+  protected List<CliOption> cliOptions = new ArrayList<CliOption>();
+
+  public List<CliOption> cliOptions() {
+    return cliOptions;
+  }
 
   public void processOpts(){
     if(additionalProperties.containsKey("templateDir")) {
       this.setTemplateDir((String)additionalProperties.get("templateDir"));
     }
+    
+    if(additionalProperties.containsKey("modelPackage")) {
+      this.setModelPackage((String)additionalProperties.get("modelPackage"));
+    }
+    
+    if(additionalProperties.containsKey("apiPackage")) {
+      this.setApiPackage((String)additionalProperties.get("apiPackage"));
+    }
   }
 
   // override with any special post-processing
@@ -178,6 +191,14 @@ public class DefaultCodegen {
     this.templateDir = templateDir;
   }
 
+  public void setModelPackage(String modelPackage) {
+    this.modelPackage = modelPackage;
+  }
+
+  public void setApiPackage(String apiPackage) {
+    this.apiPackage = apiPackage;
+  }
+
   public String toApiFilename(String name) {
     return toApiName(name);
   }
@@ -281,6 +302,9 @@ public class DefaultCodegen {
     importMapping.put("LocalDateTime", "org.joda.time.*");
     importMapping.put("LocalDate", "org.joda.time.*");
     importMapping.put("LocalTime", "org.joda.time.*");
+    
+    cliOptions.add(new CliOption("modelPackage", "package for generated models"));
+    cliOptions.add(new CliOption("apiPackage", "package for generated api classes"));
   }
 
 

modules/swagger-codegen/src/main/java/com/wordnik/swagger/codegen/languages/CSharpClientCodegen.java

@@ -41,11 +41,14 @@ public class CSharpClientCodegen extends DefaultCodegen implements CodegenConfig
 
     additionalProperties.put("invokerPackage", invokerPackage);
 
-    supportingFiles.add(new SupportingFile("apiInvoker.mustache", 
-      (sourceFolder + File.separator + invokerPackage).replace(".", java.io.File.separator), "ApiInvoker.cs"));
-    supportingFiles.add(new SupportingFile("apiException.mustache", 
+    supportingFiles.add(new SupportingFile("Configuration.mustache", 
+      (sourceFolder + File.separator + invokerPackage).replace(".", java.io.File.separator), "Configuration.cs"));
+    supportingFiles.add(new SupportingFile("ApiClient.mustache", 
+      (sourceFolder + File.separator + invokerPackage).replace(".", java.io.File.separator), "ApiClient.cs"));
+    supportingFiles.add(new SupportingFile("ApiException.mustache", 
       (sourceFolder + File.separator + invokerPackage).replace(".", java.io.File.separator), "ApiException.cs"));
     supportingFiles.add(new SupportingFile("Newtonsoft.Json.dll", "bin", "Newtonsoft.Json.dll"));
+    supportingFiles.add(new SupportingFile("RestSharp.dll", "bin", "RestSharp.dll"));
     supportingFiles.add(new SupportingFile("compile.mustache", "", "compile.bat"));
 
     languageSpecificPrimitives = new HashSet<String>(
@@ -59,7 +62,7 @@ public class CSharpClientCodegen extends DefaultCodegen implements CodegenConfig
         "byte[]",
         "List",
         "Dictionary",
-        "DateTime",
+        "DateTime?",
         "String",
         "Boolean",
         "Double",
@@ -79,9 +82,11 @@ public class CSharpClientCodegen extends DefaultCodegen implements CodegenConfig
     typeMapping.put("long", "long?");
     typeMapping.put("double", "double?");
     typeMapping.put("number", "double?");
-    typeMapping.put("Date", "DateTime");
+    typeMapping.put("datetime", "DateTime?");
+    typeMapping.put("date", "DateTime?");
     typeMapping.put("file", "string"); // path to file
     typeMapping.put("array", "List");
+    typeMapping.put("list", "List");
     typeMapping.put("map", "Dictionary");
     typeMapping.put("object", "Object");
 
@@ -94,11 +99,11 @@ public class CSharpClientCodegen extends DefaultCodegen implements CodegenConfig
 
   @Override
   public String apiFileFolder() {
-    return outputFolder + "/" + sourceFolder + "/" + apiPackage().replace('.', File.separatorChar);
+    return (outputFolder + "/" + sourceFolder + "/" + apiPackage().replace('.', '/')).replace('.', File.separatorChar);
   }
 
   public String modelFileFolder() {
-    return outputFolder + "/" + sourceFolder + "/" + modelPackage().replace('.', File.separatorChar);
+    return (outputFolder + "/" + sourceFolder + "/" + modelPackage().replace('.', '/')).replace('.', File.separatorChar);
   }
 
   @Override
@@ -165,8 +170,8 @@ public class CSharpClientCodegen extends DefaultCodegen implements CodegenConfig
   public String getSwaggerType(Property p) {
     String swaggerType = super.getSwaggerType(p);
     String type = null;
-    if(typeMapping.containsKey(swaggerType)) {
-      type = typeMapping.get(swaggerType);
+    if(typeMapping.containsKey(swaggerType.toLowerCase())) {
+      type = typeMapping.get(swaggerType.toLowerCase());
       if(languageSpecificPrimitives.contains(type))
         return type;
     }

modules/swagger-codegen/src/main/java/com/wordnik/swagger/codegen/languages/JavaClientCodegen.java

@@ -45,21 +45,6 @@ public class JavaClientCodegen extends DefaultCodegen implements CodegenConfig {
         "native", "super", "while")
     );
 
-    additionalProperties.put("invokerPackage", invokerPackage);
-    additionalProperties.put("groupId", groupId);
-    additionalProperties.put("artifactId", artifactId);
-    additionalProperties.put("artifactVersion", artifactVersion);
-
-    supportingFiles.add(new SupportingFile("pom.mustache", "", "pom.xml"));
-    supportingFiles.add(new SupportingFile("apiInvoker.mustache",
-      (sourceFolder + File.separator + invokerPackage).replace(".", java.io.File.separator), "ApiInvoker.java"));
-    supportingFiles.add(new SupportingFile("JsonUtil.mustache",
-      (sourceFolder + File.separator + invokerPackage).replace(".", java.io.File.separator), "JsonUtil.java"));
-    supportingFiles.add(new SupportingFile("StringUtil.mustache",
-      (sourceFolder + File.separator + invokerPackage).replace(".", java.io.File.separator), "StringUtil.java"));
-    supportingFiles.add(new SupportingFile("apiException.mustache",
-      (sourceFolder + File.separator + invokerPackage).replace(".", java.io.File.separator), "ApiException.java"));
-
     languageSpecificPrimitives = new HashSet<String>(
       Arrays.asList(
         "String",
@@ -73,8 +58,69 @@ public class JavaClientCodegen extends DefaultCodegen implements CodegenConfig {
       );
     instantiationTypes.put("array", "ArrayList");
     instantiationTypes.put("map", "HashMap");
+
+    cliOptions.add(new CliOption("invokerPackage", "root package for generated code"));
+    cliOptions.add(new CliOption("groupId", "groupId in generated pom.xml"));
+    cliOptions.add(new CliOption("artifactId", "artifactId in generated pom.xml"));
+    cliOptions.add(new CliOption("artifactVersion", "artifact version in generated pom.xml"));
+    cliOptions.add(new CliOption("sourceFolder", "source folder for generated code"));
   }
 
+  @Override
+  public void processOpts() {
+    super.processOpts();
+
+    if(additionalProperties.containsKey("invokerPackage")) {
+      this.setInvokerPackage((String)additionalProperties.get("invokerPackage"));
+    }
+    else{
+      //not set, use default to be passed to template
+      additionalProperties.put("invokerPackage", invokerPackage);
+    }
+
+    if(additionalProperties.containsKey("groupId")) {
+      this.setGroupId((String)additionalProperties.get("groupId"));
+    }
+    else{
+      //not set, use to be passed to template
+      additionalProperties.put("groupId", groupId);
+    }
+
+    if(additionalProperties.containsKey("artifactId")) {
+      this.setArtifactId((String)additionalProperties.get("artifactId"));
+    }
+    else{
+      //not set, use to be passed to template
+      additionalProperties.put("artifactId", artifactId);
+    }
+
+    if(additionalProperties.containsKey("artifactVersion")) {
+      this.setArtifactVersion((String)additionalProperties.get("artifactVersion"));
+    }
+    else{
+      //not set, use to be passed to template
+      additionalProperties.put("artifactVersion", artifactVersion);
+    }
+
+    if(additionalProperties.containsKey("sourceFolder")) {
+      this.setSourceFolder((String)additionalProperties.get("sourceFolder"));
+    }
+
+    supportingFiles.add(new SupportingFile("pom.mustache", "", "pom.xml"));
+    supportingFiles.add(new SupportingFile("ApiClient.mustache",
+      (sourceFolder + File.separator + invokerPackage).replace(".", File.separator), "ApiClient.java"));
+    supportingFiles.add(new SupportingFile("Configuration.mustache",
+      (sourceFolder + File.separator + invokerPackage).replace(".", File.separator), "Configuration.java"));
+    supportingFiles.add(new SupportingFile("JsonUtil.mustache",
+      (sourceFolder + File.separator + invokerPackage).replace(".", File.separator), "JsonUtil.java"));
+    supportingFiles.add(new SupportingFile("StringUtil.mustache",
+      (sourceFolder + File.separator + invokerPackage).replace(".", File.separator), "StringUtil.java"));
+    supportingFiles.add(new SupportingFile("apiException.mustache",
+      (sourceFolder + File.separator + invokerPackage).replace(".", File.separator), "ApiException.java"));
+  }
+
+
+
   @Override
   public String escapeReservedWord(String name) {
     return "_" + name;
@@ -171,5 +217,23 @@ public class JavaClientCodegen extends DefaultCodegen implements CodegenConfig {
     return camelize(operationId, true);
   }
 
+  public void setInvokerPackage(String invokerPackage) {
+    this.invokerPackage = invokerPackage;
+  }
 
+  public void setGroupId(String groupId) {
+    this.groupId = groupId;
+  }
+
+  public void setArtifactId(String artifactId) {
+    this.artifactId = artifactId;
+  }
+
+  public void setArtifactVersion(String artifactVersion) {
+    this.artifactVersion = artifactVersion;
+  }
+
+  public void setSourceFolder(String sourceFolder) {
+    this.sourceFolder = sourceFolder;
+  }
 }

modules/swagger-codegen/src/main/java/com/wordnik/swagger/codegen/languages/ObjcClientCodegen.java

@@ -1,6 +1,5 @@
 package com.wordnik.swagger.codegen.languages;
 
-import com.wordnik.swagger.util.Json;
 import com.wordnik.swagger.codegen.*;
 import com.wordnik.swagger.models.properties.*;
 
@@ -10,7 +9,8 @@ import java.io.File;
 public class ObjcClientCodegen extends DefaultCodegen implements CodegenConfig {
   protected Set<String> foundationClasses = new HashSet<String>();
   protected String sourceFolder = "client";
-  protected static String PREFIX = "SWG";
+  protected String classPrefix = "SWG";
+  protected String projectName = "swaggerClient";
 
   public CodegenType getTag() {
     return CodegenType.CLIENT;
@@ -26,7 +26,7 @@ public class ObjcClientCodegen extends DefaultCodegen implements CodegenConfig {
 
   public ObjcClientCodegen() {
     super();
-    outputFolder = "generated-code/objc";
+    outputFolder = "generated-code" + File.separator + "objc";
     modelTemplateFiles.put("model-header.mustache", ".h");
     modelTemplateFiles.put("model-body.mustache", ".m");
     apiTemplateFiles.put("api-header.mustache", ".h");
@@ -34,12 +34,6 @@ public class ObjcClientCodegen extends DefaultCodegen implements CodegenConfig {
     templateDir = "objc";
     modelPackage = "";
 
-    String appName = System.getProperty("appName");
-    if(appName == null) {
-      appName = "swaggerClient";
-    }
-    additionalProperties.put("projectName", appName);
-
     defaultIncludes = new HashSet<String>(
       Arrays.asList(
         "bool",
@@ -112,6 +106,30 @@ public class ObjcClientCodegen extends DefaultCodegen implements CodegenConfig {
     instantiationTypes.put("array", "NSMutableArray");
     instantiationTypes.put("map", "NSMutableDictionary");
     
+    cliOptions.add(new CliOption("classPrefix", "prefix for generated classes"));
+    cliOptions.add(new CliOption("sourceFolder", "source folder for generated code"));
+    cliOptions.add(new CliOption("projectName", "name of the Xcode project in generated Podfile"));
+  }
+
+  @Override
+  public void processOpts() {
+    super.processOpts();
+    
+    if(additionalProperties.containsKey("sourceFolder")) {
+      this.setSourceFolder((String)additionalProperties.get("sourceFolder"));
+    }
+    
+    if(additionalProperties.containsKey("classPrefix")) {
+      this.setClassPrefix((String)additionalProperties.get("classPrefix"));
+    }
+    
+    if(additionalProperties.containsKey("projectName")) {
+      this.setProjectName((String)additionalProperties.get("projectName"));
+    }
+    else{
+      additionalProperties.put("projectName", projectName);
+    }
+    
     supportingFiles.add(new SupportingFile("SWGObject.h", sourceFolder, "SWGObject.h"));
     supportingFiles.add(new SupportingFile("SWGObject.m", sourceFolder, "SWGObject.m"));
     supportingFiles.add(new SupportingFile("SWGQueryParamCollection.h", sourceFolder, "SWGQueryParamCollection.h"));
@@ -220,7 +238,7 @@ public class ObjcClientCodegen extends DefaultCodegen implements CodegenConfig {
     }
     // custom classes
     else {
-      return PREFIX + camelize(type);
+      return classPrefix + camelize(type);
     }
   }
 
@@ -266,11 +284,11 @@ public class ObjcClientCodegen extends DefaultCodegen implements CodegenConfig {
 
   @Override
   public String toApiName(String name) {
-    return PREFIX + camelize(name) + "Api";
+    return classPrefix + camelize(name) + "Api";
   }
 
   public String toApiFilename(String name) {
-    return PREFIX + camelize(name) + "Api";
+    return classPrefix + camelize(name) + "Api";
   }
 
   @Override
@@ -313,4 +331,15 @@ public class ObjcClientCodegen extends DefaultCodegen implements CodegenConfig {
     return camelize(operationId, true);
   }
 
+  public void setSourceFolder(String sourceFolder) {
+    this.sourceFolder = sourceFolder;
+  }
+
+  public void setClassPrefix(String classPrefix) {
+    this.classPrefix = classPrefix;
+  }
+
+  public void setProjectName(String projectName) {
+    this.projectName = projectName;
+  }
 }

modules/swagger-codegen/src/main/java/com/wordnik/swagger/codegen/languages/PerlClientCodegen.java

@@ -27,8 +27,8 @@ public class PerlClientCodegen extends DefaultCodegen implements CodegenConfig {
 
   public PerlClientCodegen() {
     super();
-    modelPackage = "Object";
-    outputFolder = "generated-code/perl";
+    modelPackage = File.separatorChar + "Object";
+    outputFolder = "generated-code" + File.separatorChar + "perl";
     modelTemplateFiles.put("object.mustache", ".pm");
     apiTemplateFiles.put("api.mustache", ".pm");
     templateDir = "perl";
@@ -63,6 +63,7 @@ public class PerlClientCodegen extends DefaultCodegen implements CodegenConfig {
     languageSpecificPrimitives.add("DateTime");
     languageSpecificPrimitives.add("ARRAY");
     languageSpecificPrimitives.add("HASH");
+    languageSpecificPrimitives.add("object");
 
     typeMapping.put("integer", "int");
     typeMapping.put("long", "int");
@@ -75,9 +76,11 @@ public class PerlClientCodegen extends DefaultCodegen implements CodegenConfig {
     typeMapping.put("password", "string");
     typeMapping.put("array", "ARRAY");
     typeMapping.put("map", "HASH");
+    typeMapping.put("object", "object");
 
-    supportingFiles.add(new SupportingFile("APIClient.mustache", "lib/WWW/" + invokerPackage, "APIClient.pm"));
-    supportingFiles.add(new SupportingFile("BaseObject.mustache", "lib/WWW/" + invokerPackage, "Object/BaseObject.pm"));
+    supportingFiles.add(new SupportingFile("ApiClient.mustache", ("lib/WWW/" + invokerPackage).replace('/', File.separatorChar), "ApiClient.pm"));
+    supportingFiles.add(new SupportingFile("Configuration.mustache", ("lib/WWW/" + invokerPackage).replace('/', File.separatorChar), "Configuration.pm"));
+    supportingFiles.add(new SupportingFile("BaseObject.mustache", ("lib/WWW/" + invokerPackage).replace('/', File.separatorChar), "Object/BaseObject.pm"));
   }
 
   @Override
@@ -87,11 +90,11 @@ public class PerlClientCodegen extends DefaultCodegen implements CodegenConfig {
   
   @Override
   public String apiFileFolder() {
-    return outputFolder + "/lib/WWW/" + invokerPackage + apiPackage().replace('.', File.separatorChar);
+    return (outputFolder + "/lib/WWW/" + invokerPackage + apiPackage()).replace('/', File.separatorChar);
   }
 
   public String modelFileFolder() {
-    return outputFolder + "/lib/WWW/" + invokerPackage + "/" + modelPackage().replace('.', File.separatorChar);
+    return (outputFolder + "/lib/WWW/" + invokerPackage + modelPackage()).replace('/', File.separatorChar);
   }
 
   @Override

modules/swagger-codegen/src/main/java/com/wordnik/swagger/codegen/languages/PhpClientCodegen.java

@@ -83,11 +83,11 @@ public class PhpClientCodegen extends DefaultCodegen implements CodegenConfig {
     typeMapping.put("array", "array");
     typeMapping.put("list", "array");
 
-    supportingFiles.add(new SupportingFile("composer.mustache", packagePath, "composer.json"));
-    supportingFiles.add(new SupportingFile("configuration.mustache", packagePath + "/lib", "Configuration.php"));
-    supportingFiles.add(new SupportingFile("APIClient.mustache", packagePath + "/lib", "APIClient.php"));
-    supportingFiles.add(new SupportingFile("APIClientException.mustache", packagePath + "/lib", "APIClientException.php"));
-    supportingFiles.add(new SupportingFile("require.mustache", packagePath, invokerPackage + ".php"));
+    supportingFiles.add(new SupportingFile("composer.mustache", packagePath.replace('/', File.separatorChar), "composer.json"));
+    supportingFiles.add(new SupportingFile("configuration.mustache", (packagePath + "/lib").replace('/', File.separatorChar), "Configuration.php"));
+    supportingFiles.add(new SupportingFile("ApiClient.mustache", (packagePath + "/lib").replace('/', File.separatorChar), "ApiClient.php"));
+    supportingFiles.add(new SupportingFile("ApiException.mustache", (packagePath + "/lib").replace('/', File.separatorChar), "ApiException.php"));
+    supportingFiles.add(new SupportingFile("require.mustache", packagePath.replace('/', File.separatorChar), invokerPackage + ".php"));
   }
 
   @Override
@@ -97,11 +97,11 @@ public class PhpClientCodegen extends DefaultCodegen implements CodegenConfig {
   
   @Override
   public String apiFileFolder() {
-    return outputFolder + "/" + apiPackage().replace('.', File.separatorChar);
+    return (outputFolder + "/" + apiPackage()).replace('/', File.separatorChar);
   }
 
   public String modelFileFolder() {
-    return outputFolder + "/" + modelPackage().replace('.', File.separatorChar);
+    return (outputFolder + "/" + modelPackage()).replace('/', File.separatorChar);
   }
 
   @Override

modules/swagger-codegen/src/main/java/com/wordnik/swagger/codegen/languages/PythonClientCodegen.java

@@ -71,6 +71,7 @@ public class PythonClientCodegen extends DefaultCodegen implements CodegenConfig
     supportingFiles.add(new SupportingFile("swagger.mustache", invokerPackage, "swagger.py"));
     supportingFiles.add(new SupportingFile("rest.mustache", invokerPackage, "rest.py"));
     supportingFiles.add(new SupportingFile("util.mustache", invokerPackage, "util.py"));
+    supportingFiles.add(new SupportingFile("config.mustache", invokerPackage, "config.py"));
     supportingFiles.add(new SupportingFile("__init__package.mustache", invokerPackage, "__init__.py"));
     supportingFiles.add(new SupportingFile("__init__model.mustache", modelPackage.replace('.', File.separatorChar), "__init__.py"));
     supportingFiles.add(new SupportingFile("__init__api.mustache", apiPackage.replace('.', File.separatorChar), "__init__.py"));

modules/swagger-codegen/src/main/java/com/wordnik/swagger/codegen/languages/RetrofitClientCodegen.java

@@ -0,0 +1,190 @@
+package com.wordnik.swagger.codegen.languages;
+
+import com.wordnik.swagger.codegen.*;
+import com.wordnik.swagger.models.Operation;
+import com.wordnik.swagger.models.properties.*;
+
+import java.util.*;
+import java.io.File;
+
+public class RetrofitClientCodegen extends DefaultCodegen implements CodegenConfig {
+  protected String invokerPackage = "io.swagger.client";
+  protected String groupId = "io.swagger";
+  protected String artifactId = "swagger-java-client";
+  protected String artifactVersion = "1.0.0";
+  protected String sourceFolder = "src/main/java";
+
+  public CodegenType getTag() {
+    return CodegenType.CLIENT;
+  }
+
+  public String getName() {
+    return "retrofit";
+  }
+
+  public String getHelp() {
+    return "Generates a Retrofit client library.";
+  }
+
+  public RetrofitClientCodegen() {
+    super();
+    outputFolder = "generated-code/java";
+    modelTemplateFiles.put("model.mustache", ".java");
+    apiTemplateFiles.put("api.mustache", ".java");
+    templateDir = "retrofit";
+    apiPackage = "io.swagger.client.api";
+    modelPackage = "io.swagger.client.model";
+
+    reservedWords = new HashSet<String> (
+      Arrays.asList(
+        "abstract", "continue", "for", "new", "switch", "assert", 
+        "default", "if", "package", "synchronized", "boolean", "do", "goto", "private", 
+        "this", "break", "double", "implements", "protected", "throw", "byte", "else", 
+        "import", "public", "throws", "case", "enum", "instanceof", "return", "transient", 
+        "catch", "extends", "int", "short", "try", "char", "final", "interface", "static", 
+        "void", "class", "finally", "long", "strictfp", "volatile", "const", "float", 
+        "native", "super", "while")
+    );
+
+    additionalProperties.put("invokerPackage", invokerPackage);
+    additionalProperties.put("groupId", groupId);
+    additionalProperties.put("artifactId", artifactId);
+    additionalProperties.put("artifactVersion", artifactVersion);
+
+    supportingFiles.add(new SupportingFile("pom.mustache", "", "pom.xml"));
+    supportingFiles.add(new SupportingFile("service.mustache", 
+      (sourceFolder + File.separator + invokerPackage).replace(".", java.io.File.separator), "ServiceGenerator.java"));
+
+    languageSpecificPrimitives = new HashSet<String>(
+      Arrays.asList(
+        "String",
+        "boolean",
+        "Boolean",
+        "Double",
+        "Integer",
+        "Long",
+        "Float",
+        "Object")
+      );
+    instantiationTypes.put("array", "ArrayList");
+    instantiationTypes.put("map", "HashMap");
+  }
+
+  @Override
+  public String escapeReservedWord(String name) {
+    return "_" + name;
+  }
+
+  @Override
+  public String apiFileFolder() {
+    return outputFolder + "/" + sourceFolder + "/" + apiPackage().replace('.', File.separatorChar);
+  }
+
+  public String modelFileFolder() {
+    return outputFolder + "/" + sourceFolder + "/" + modelPackage().replace('.', File.separatorChar);
+  }
+
+  @Override
+  public String toVarName(String name) {
+    // replace - with _ e.g. created-at => created_at
+    name = name.replaceAll("-", "_");
+
+    // if it's all uppper case, do nothing
+    if (name.matches("^[A-Z_]*$"))
+      return name;
+
+    // camelize (lower first character) the variable name
+    // pet_id => petId
+    name = camelize(name, true);
+
+    // for reserved word or word starting with number, append _
+    if(reservedWords.contains(name) || name.matches("^\\d.*"))
+      name = escapeReservedWord(name);
+
+    return name;
+  }
+
+  @Override
+  public String toParamName(String name) {
+    // should be the same as variable name
+    return toVarName(name);
+  }
+
+  @Override
+  public String toModelName(String name) {
+    // model name cannot use reserved keyword, e.g. return
+    if(reservedWords.contains(name))
+      throw new RuntimeException(name + " (reserved word) cannot be used as a model name");
+
+    // camelize the model name
+    // phone_number => PhoneNumber
+    return camelize(name);
+  }
+
+  @Override
+  public String toModelFilename(String name) {
+    // should be the same as the model name
+    return toModelName(name);
+  }
+
+
+  @Override
+  public String getTypeDeclaration(Property p) {
+    if(p instanceof ArrayProperty) {
+      ArrayProperty ap = (ArrayProperty) p;
+      Property inner = ap.getItems();
+      return getSwaggerType(p) + "<" + getTypeDeclaration(inner) + ">";
+    }
+    else if (p instanceof MapProperty) {
+      MapProperty mp = (MapProperty) p;
+      Property inner = mp.getAdditionalProperties();
+
+      return getSwaggerType(p) + "<String, " + getTypeDeclaration(inner) + ">";
+    }
+    return super.getTypeDeclaration(p);
+  }
+
+  @Override
+  public String getSwaggerType(Property p) {
+    String swaggerType = super.getSwaggerType(p);
+    String type = null;
+    if(typeMapping.containsKey(swaggerType)) {
+      type = typeMapping.get(swaggerType);
+      if(languageSpecificPrimitives.contains(type))
+        return toModelName(type);
+    }
+    else
+      type = swaggerType;
+    return toModelName(type);
+  }
+
+  @Override
+  public String toOperationId(String operationId) {
+    // method name cannot use reserved keyword, e.g. return
+    if(reservedWords.contains(operationId))
+      throw new RuntimeException(operationId + " (reserved word) cannot be used as method name");
+
+    return camelize(operationId, true);
+  }
+
+  public Map<String, Object> postProcessOperations(Map<String, Object> objs) {
+    Map<String, Object> operations = (Map<String, Object>)objs.get("operations");
+    if(operations != null) {
+      List<CodegenOperation> ops = (List<CodegenOperation>) operations.get("operation");
+      for(CodegenOperation operation : ops) {
+        if (operation.hasConsumes == Boolean.TRUE) {
+          Map<String, String> firstType = operation.consumes.get(0);
+          if (firstType != null) {
+            if ("multipart/form-data".equals(firstType.get("mediaType"))) {
+              operation.isMultipart = Boolean.TRUE;
+            }
+          }
+        }
+        if(operation.returnType == null) {
+          operation.returnType = "Void";        
+        }
+      }
+    }
+    return objs;
+  }
+}

modules/swagger-codegen/src/main/java/com/wordnik/swagger/codegen/languages/RubyClientCodegen.java

@@ -36,7 +36,7 @@ public class RubyClientCodegen extends DefaultCodegen implements CodegenConfig {
     moduleName = generateModuleName();
     modelPackage = gemName + "/models";
     apiPackage = gemName + "/api";
-    outputFolder = "generated-code/ruby";
+    outputFolder = "generated-code" + File.separatorChar + "ruby";
     modelTemplateFiles.put("model.mustache", ".rb");
     apiTemplateFiles.put("api.mustache", ".rb");
     templateDir = "ruby";
@@ -69,17 +69,17 @@ public class RubyClientCodegen extends DefaultCodegen implements CodegenConfig {
     typeMapping.put("List", "array");
     typeMapping.put("map", "map");
 
-    String baseFolder = "lib/" + gemName;
-    String swaggerFolder = baseFolder + "/swagger";
-    String modelFolder = baseFolder + "/models";
+    String baseFolder = "lib" + File.separatorChar + gemName;
+    String swaggerFolder = baseFolder + File.separatorChar + "swagger";
+    String modelFolder = baseFolder + File.separatorChar + "models";
     supportingFiles.add(new SupportingFile("swagger_client.gemspec.mustache", "", gemName + ".gemspec"));
     supportingFiles.add(new SupportingFile("swagger_client.mustache", "lib", gemName + ".rb"));
     supportingFiles.add(new SupportingFile("monkey.mustache", baseFolder, "monkey.rb"));
     supportingFiles.add(new SupportingFile("swagger.mustache", baseFolder, "swagger.rb"));
-    supportingFiles.add(new SupportingFile("swagger/request.mustache", swaggerFolder, "request.rb"));
-    supportingFiles.add(new SupportingFile("swagger/response.mustache", swaggerFolder, "response.rb"));
-    supportingFiles.add(new SupportingFile("swagger/version.mustache", swaggerFolder, "version.rb"));
-    supportingFiles.add(new SupportingFile("swagger/configuration.mustache", swaggerFolder, "configuration.rb"));
+    supportingFiles.add(new SupportingFile("swagger" + File.separatorChar + "request.mustache", swaggerFolder, "request.rb"));
+    supportingFiles.add(new SupportingFile("swagger" + File.separatorChar + "response.mustache", swaggerFolder, "response.rb"));
+    supportingFiles.add(new SupportingFile("swagger" + File.separatorChar + "version.mustache", swaggerFolder, "version.rb"));
+    supportingFiles.add(new SupportingFile("swagger" + File.separatorChar + "configuration.mustache", swaggerFolder, "configuration.rb"));
     supportingFiles.add(new SupportingFile("base_object.mustache", modelFolder, "base_object.rb"));
   }
 

modules/swagger-codegen/src/main/java/config/Config.java

@@ -0,0 +1,33 @@
+package config;
+
+import com.google.common.collect.ImmutableMap;
+import java.util.HashMap;
+import java.util.Map;
+
+public class Config {
+  private Map<String, String> options;
+
+  public Config() {
+    this.options = new HashMap<String, String>();
+  }
+
+  public Config(Map<String, String> properties) {
+    this.options = properties;
+  }
+
+  public Map<String, String> getOptions() {
+    return ImmutableMap.copyOf(options);
+  }
+  
+  public boolean hasOption(String opt){
+    return options.containsKey(opt);
+  }
+  
+  public String getOption(String opt){
+    return options.get(opt);
+  }
+  
+  public void setOption(String opt, String value){
+    options.put(opt, value);
+  }
+}

modules/swagger-codegen/src/main/java/config/ConfigParser.java

@@ -0,0 +1,41 @@
+package config;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import java.io.File;
+import java.util.Iterator;
+import java.util.Map;
+
+public class ConfigParser {
+
+  public static Config read(String location) {
+
+    System.out.println("reading config from " + location);
+
+    ObjectMapper mapper = new ObjectMapper();
+    
+    Config config = new Config();
+    
+    try {
+      JsonNode rootNode = mapper.readTree(new File(location));
+      Iterator<Map.Entry<String, JsonNode>> optionNodes = rootNode.fields();
+      
+      while (optionNodes.hasNext()) {
+        Map.Entry<String, JsonNode> optionNode = (Map.Entry<String, JsonNode>) optionNodes.next();
+        
+        if(optionNode.getValue().isValueNode()){
+          config.setOption(optionNode.getKey(), optionNode.getValue().asText());
+        }
+        else{
+          System.out.println("omitting non-value node " + optionNode.getKey());
+        }
+      }
+    }
+    catch (Exception e) {
+      System.out.println(e.getMessage());
+      return null;
+    }
+    
+    return config;
+  }
+}

modules/swagger-codegen/src/main/resources/Java/ApiClient.mustache

@@ -30,69 +30,116 @@ import java.net.URLEncoder;
 import java.io.IOException;
 import java.io.UnsupportedEncodingException;
 
+import java.text.DateFormat;
 import java.text.SimpleDateFormat;
 import java.text.ParseException;
 
-public class ApiInvoker {
-  private static ApiInvoker INSTANCE = new ApiInvoker();
+public class ApiClient {
   private Map<String, Client> hostMap = new HashMap<String, Client>();
   private Map<String, String> defaultHeaderMap = new HashMap<String, String>();
-  private boolean isDebug = false;
+  private boolean debugging = false;
+  private String basePath = "{{basePath}}";
 
-  /**
-   * ISO 8601 date time format.
-   * @see https://en.wikipedia.org/wiki/ISO_8601
-   */
-  public static final SimpleDateFormat DATE_TIME_FORMAT = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ");
+  private DateFormat dateFormat;
 
-  /**
-   * ISO 8601 date format.
-   * @see https://en.wikipedia.org/wiki/ISO_8601
-   */
-  public static final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd");
+  public ApiClient() {
+    // Use ISO 8601 format for date and datetime.
+    // See https://en.wikipedia.org/wiki/ISO_8601
+    this.dateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ");
 
-  static {
     // Use UTC as the default time zone.
-    DATE_TIME_FORMAT.setTimeZone(TimeZone.getTimeZone("UTC"));
-    DATE_FORMAT.setTimeZone(TimeZone.getTimeZone("UTC"));
+    this.dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
 
     // Set default User-Agent.
     setUserAgent("Java-Swagger");
   }
 
-  public static void setUserAgent(String userAgent) {
-    INSTANCE.addDefaultHeader("User-Agent", userAgent);
+  public String getBasePath() {
+    return basePath;
   }
 
-  public static Date parseDateTime(String str) {
+  public ApiClient setBasePath(String basePath) {
+    this.basePath = basePath;
+    return this;
+  }
+
+  /**
+   * Set the User-Agent header's value (by adding to the default header map).
+   */
+  public ApiClient setUserAgent(String userAgent) {
+    addDefaultHeader("User-Agent", userAgent);
+    return this;
+  }
+
+  /**
+   * Add a default header.
+   *
+   * @param key The header's key
+   * @param value The header's value
+   */
+  public ApiClient addDefaultHeader(String key, String value) {
+    defaultHeaderMap.put(key, value);
+    return this;
+  }
+
+  /**
+   * Check that whether debugging is enabled for this API client.
+   */
+  public boolean isDebugging() {
+    return debugging;
+  }
+
+  /**
+   * Enable/disable debugging for this API client.
+   *
+   * @param debugging To enable (true) or disable (false) debugging
+   */
+  public ApiClient setDebugging(boolean debugging) {
+    this.debugging = debugging;
+    return this;
+  }
+
+  /**
+   * Get the date format used to parse/format date parameters.
+   */
+  public DateFormat getDateFormat() {
+    return dateFormat;
+  }
+
+  /**
+   * Set the date format used to parse/format date parameters.
+   */
+  public ApiClient getDateFormat(DateFormat dateFormat) {
+    this.dateFormat = dateFormat;
+    return this;
+  }
+
+  /**
+   * Parse the given string into Date object.
+   */
+  public Date parseDate(String str) {
     try {
-      return DATE_TIME_FORMAT.parse(str);
+      return dateFormat.parse(str);
     } catch (java.text.ParseException e) {
       throw new RuntimeException(e);
     }
   }
 
-  public static Date parseDate(String str) {
-    try {
-      return DATE_FORMAT.parse(str);
-    } catch (java.text.ParseException e) {
-      throw new RuntimeException(e);
-    }
+  /**
+   * Format the given Date object into string.
+   */
+  public String formatDate(Date date) {
+    return dateFormat.format(date);
   }
 
-  public static String formatDateTime(Date datetime) {
-    return DATE_TIME_FORMAT.format(datetime);
-  }
-
-  public static String formatDate(Date date) {
-    return DATE_FORMAT.format(date);
-  }
-
-  public static String parameterToString(Object param) {
+  /**
+   * Format the given parameter object into string.
+   */
+  public String parameterToString(Object param) {
     if (param == null) {
       return "";
     } else if (param instanceof Date) {
-      return formatDateTime((Date) param);
+      return formatDate((Date) param);
     } else if (param instanceof Collection) {
       StringBuilder b = new StringBuilder();
       for(Object o : (Collection)param) {
@@ -107,40 +154,56 @@ public class ApiInvoker {
     }
   }
 
-  public static String selectHeaderAccept(String[] accepts) {
+  /**
+   * Select the Accept header's value from the given accepts array:
+   *   if JSON exists in the given array, use it;
+   *   otherwise use all of them (joining into a string)
+   *
+   * @param accepts The accepts array to select from
+   * @return The Accept header to use. If the given array is empty,
+   *   null will be returned (not to set the Accept header explicitly).
+   */
+  public String selectHeaderAccept(String[] accepts) {
     if (accepts.length == 0) return null;
     if (StringUtil.containsIgnoreCase(accepts, "application/json")) return "application/json";
     return StringUtil.join(accepts, ",");
   }
 
-  public static String selectHeaderContentType(String[] contentTypes) {
+  /**
+   * Select the Content-Type header's value from the given array:
+   *   if JSON exists in the given array, use it;
+   *   otherwise use the first one of the array.
+   *
+   * @param contentTypes The Content-Type array to select from
+   * @return The Content-Type header to use. If the given array is empty,
+   *   JSON will be used.
+   */
+  public String selectHeaderContentType(String[] contentTypes) {
     if (contentTypes.length == 0) return "application/json";
     if (StringUtil.containsIgnoreCase(contentTypes, "application/json")) return "application/json";
     return contentTypes[0];
   }
 
-  public void enableDebug() {
-    isDebug = true;
-  }
-
-  public static ApiInvoker getInstance() {
-    return INSTANCE;
-  }
-
-  public void addDefaultHeader(String key, String value) {
-     defaultHeaderMap.put(key, value);
-  }
-
+  /**
+   * Escape the given string to be used as URL query value.
+   */
   public String escapeString(String str) {
-    try{
+    try {
       return URLEncoder.encode(str, "utf8").replaceAll("\\+", "%20");
-    }
-    catch(UnsupportedEncodingException e) {
+    } catch (UnsupportedEncodingException e) {
       return str;
     }
   }
 
-  public static Object deserialize(String json, String containerType, Class cls) throws ApiException {
+  /**
+   * Deserialize the given JSON string to Java object.
+   *
+   * @param json The JSON string
+   * @param containerType The container type, one of "list", "array" or ""
+   * @param cls The type of the Java object
+   * @return The deserialized Java object
+   */
+  public Object deserialize(String json, String containerType, Class cls) throws ApiException {
     if(null != containerType) {
         containerType = containerType.toLowerCase();
     }
@@ -161,11 +224,14 @@ public class ApiInvoker {
       }
     }
     catch (IOException e) {
-      throw new ApiException(500, e.getMessage());
+      throw new ApiException(500, e.getMessage(), null, json);
     }
   }
 
-  public static String serialize(Object obj) throws ApiException {
+  /**
+   * Serialize the given Java object into JSON string.
+   */
+  public String serialize(Object obj) throws ApiException {
     try {
       if (obj != null)
         return JsonUtil.getJsonMapper().writeValueAsString(obj);
@@ -177,11 +243,22 @@ public class ApiInvoker {
     }
   }
 
-  public String invokeAPI(String host, String path, String method, Map<String, String> queryParams, Object body, Map<String, String> headerParams, Map<String, String> formParams, String accept, String contentType) throws ApiException {
-    Client client = getClient(host);
+  /**
+   * Invoke API by sending HTTP request with the given options.
+   *
+   * @param path The sub-path of the HTTP URL
+   * @param method The request method, one of "GET", "POST", "PUT", and "DELETE"
+   * @param queryParams The query parameters
+   * @param body The request body object
+   * @param headerParams The header parameters
+   * @param formParams The form parameters
+   * @param contentType The request Content-Type
+   * @return The response body in type of string
+   */
+  public String invokeAPI(String path, String method, Map<String, String> queryParams, Object body, Map<String, String> headerParams, Map<String, String> formParams, String accept, String contentType) throws ApiException {
+    Client client = getClient();
 
     StringBuilder b = new StringBuilder();
-
     for(String key : queryParams.keySet()) {
       String value = queryParams.get(key);
       if (value != null){
@@ -196,18 +273,19 @@ public class ApiInvoker {
 
     Builder builder;
     if (accept == null)
-      builder = client.resource(host + path + querystring).getRequestBuilder();
+      builder = client.resource(basePath + path + querystring).getRequestBuilder();
     else
-      builder = client.resource(host + path + querystring).accept(accept);
+      builder = client.resource(basePath + path + querystring).accept(accept);
+
     for(String key : headerParams.keySet()) {
       builder = builder.header(key, headerParams.get(key));
     }
-
     for(String key : defaultHeaderMap.keySet()) {
       if(!headerParams.containsKey(key)) {
         builder = builder.header(key, defaultHeaderMap.get(key));
       }
     }
+
     ClientResponse response = null;
 
     if("GET".equals(method)) {
@@ -254,6 +332,7 @@ public class ApiInvoker {
     else {
       throw new ApiException(500, "unknown method type " + method);
     }
+
     if(response.getClientResponseStatus() == ClientResponse.Status.NO_CONTENT) {
       return null;
     }
@@ -267,9 +346,11 @@ public class ApiInvoker {
     }
     else {
       String message = "error";
+      String respBody = null;
       if(response.hasEntity()) {
         try{
-          message = String.valueOf(response.getEntity(String.class));
+          respBody = String.valueOf(response.getEntity(String.class));
+          message = respBody;
         }
         catch (RuntimeException e) {
           // e.printStackTrace();
@@ -277,16 +358,21 @@ public class ApiInvoker {
       }
       throw new ApiException(
                 response.getClientResponseStatus().getStatusCode(),
-                message);
+                message,
+                response.getHeaders(),
+                respBody);
     }
   }
 
+  /**
+   * Encode the given form parameters as request body.
+   */
   private String getXWWWFormUrlencodedParams(Map<String, String> formParams) {
     StringBuilder formParamBuilder = new StringBuilder();
 
     for (Entry<String, String> param : formParams.entrySet()) {
-      String keyStr = ApiInvoker.parameterToString(param.getKey());
-      String valueStr = ApiInvoker.parameterToString(param.getValue());
+      String keyStr = parameterToString(param.getKey());
+      String valueStr = parameterToString(param.getValue());
 
       try {
         formParamBuilder.append(URLEncoder.encode(keyStr, "utf8"))
@@ -305,14 +391,16 @@ public class ApiInvoker {
     return encodedFormParams;
   }
 
-
-  private Client getClient(String host) {
-    if(!hostMap.containsKey(host)) {
+  /**
+   * Get an existing client or create a new client to handle HTTP request.
+   */
+  private Client getClient() {
+    if(!hostMap.containsKey(basePath)) {
       Client client = Client.create();
-      if(isDebug)
+      if (debugging)
         client.addFilter(new LoggingFilter());
-      hostMap.put(host, client);
+      hostMap.put(basePath, client);
     }
-    return hostMap.get(host);
+    return hostMap.get(basePath);
   }
 }

modules/swagger-codegen/src/main/resources/Java/Configuration.mustache

@@ -0,0 +1,21 @@
+package {{invokerPackage}};
+
+public class Configuration {
+  private static ApiClient defaultApiClient = new ApiClient();
+
+  /**
+   * Get the default API client, which would be used when creating API
+   * instances without providing an API client.
+   */
+  public static ApiClient getDefaultApiClient() {
+    return defaultApiClient;
+  }
+
+  /**
+   * Set the default API client, which would be used when creating API
+   * instances without providing an API client.
+   */
+  public static void setDefaultApiClient(ApiClient apiClient) {
+    defaultApiClient = apiClient;
+  }
+}

modules/swagger-codegen/src/main/resources/Java/api.mustache

@@ -1,7 +1,8 @@
 package {{package}};
 
 import {{invokerPackage}}.ApiException;
-import {{invokerPackage}}.ApiInvoker;
+import {{invokerPackage}}.ApiClient;
+import {{invokerPackage}}.Configuration;
 
 import {{modelPackage}}.*;
 
@@ -21,19 +22,22 @@ import java.util.HashMap;
 
 {{#operations}}
 public class {{classname}} {
-  String basePath = "{{basePath}}";
-  ApiInvoker apiInvoker = ApiInvoker.getInstance();
+  private ApiClient apiClient;
 
-  public ApiInvoker getInvoker() {
-    return apiInvoker;
+  public {{classname}}() {
+    this(Configuration.getDefaultApiClient());
   }
 
-  public void setBasePath(String basePath) {
-    this.basePath = basePath;
+  public {{classname}}(ApiClient apiClient) {
+    this.apiClient = apiClient;
   }
 
-  public String getBasePath() {
-    return basePath;
+  public ApiClient getApiClient() {
+    return apiClient;
+  }
+
+  public void setApiClient(ApiClient apiClient) {
+    this.apiClient = apiClient;
   }
 
   {{#operation}}
@@ -54,7 +58,7 @@ public class {{classname}} {
 
     // create path and map variables
     String path = "{{path}}".replaceAll("\\{format\\}","json"){{#pathParams}}
-      .replaceAll("\\{" + "{{paramName}}" + "\\}", apiInvoker.escapeString({{{paramName}}}.toString())){{/pathParams}};
+      .replaceAll("\\{" + "{{paramName}}" + "\\}", apiClient.escapeString({{{paramName}}}.toString())){{/pathParams}};
 
     // query params
     Map<String, String> queryParams = new HashMap<String, String>();
@@ -62,45 +66,51 @@ public class {{classname}} {
     Map<String, String> formParams = new HashMap<String, String>();
 
     {{#queryParams}}if ({{paramName}} != null)
-      queryParams.put("{{baseName}}", ApiInvoker.parameterToString({{paramName}}));
+      queryParams.put("{{baseName}}", apiClient.parameterToString({{paramName}}));
     {{/queryParams}}
 
+    {{#headerParams}}if ({{paramName}} != null)
+      headerParams.put("{{baseName}}", apiClient.parameterToString({{paramName}}));
+    {{/headerParams}}
+
     final String[] accepts = {
       {{#produces}}"{{mediaType}}"{{#hasMore}}, {{/hasMore}}{{/produces}}
     };
-    final String accept = ApiInvoker.selectHeaderAccept(accepts);
+    final String accept = apiClient.selectHeaderAccept(accepts);
 
     final String[] contentTypes = {
       {{#consumes}}"{{mediaType}}"{{#hasMore}}, {{/hasMore}}{{/consumes}}
     };
-    final String contentType = ApiInvoker.selectHeaderContentType(contentTypes);
-
-    {{#headerParams}}headerParams.put("{{baseName}}", ApiInvoker.parameterToString({{paramName}}));
-    {{/headerParams}}
+    final String contentType = apiClient.selectHeaderContentType(contentTypes);
 
     if(contentType.startsWith("multipart/form-data")) {
       boolean hasFields = false;
       FormDataMultiPart mp = new FormDataMultiPart();
       {{#formParams}}{{#notFile}}
+      if ({{paramName}} != null) {
         hasFields = true;
-      mp.field("{{baseName}}", ApiInvoker.parameterToString({{paramName}}), MediaType.MULTIPART_FORM_DATA_TYPE);
+        mp.field("{{baseName}}", apiClient.parameterToString({{paramName}}), MediaType.MULTIPART_FORM_DATA_TYPE);
+      }
       {{/notFile}}{{#isFile}}
+      if ({{paramName}} != null) {
         hasFields = true;
-      mp.field("{{baseName}}", file.getName());
+        mp.field("{{baseName}}", {{paramName}}.getName());
         mp.bodyPart(new FileDataBodyPart("{{baseName}}", {{paramName}}, MediaType.MULTIPART_FORM_DATA_TYPE));
+      }
       {{/isFile}}{{/formParams}}
       if(hasFields)
         postBody = mp;
     }
     else {
-      {{#formParams}}{{#notFile}}formParams.put("{{baseName}}", ApiInvoker.parameterToString({{paramName}}));{{/notFile}}
+      {{#formParams}}{{#notFile}}if ({{paramName}} != null)
+        formParams.put("{{baseName}}", apiClient.parameterToString({{paramName}}));{{/notFile}}
       {{/formParams}}
     }
 
     try {
-      String response = apiInvoker.invokeAPI(basePath, path, "{{httpMethod}}", queryParams, postBody, headerParams, formParams, accept, contentType);
+      String response = apiClient.invokeAPI(path, "{{httpMethod}}", queryParams, postBody, headerParams, formParams, accept, contentType);
       if(response != null){
-        return {{#returnType}}({{{returnType}}}) ApiInvoker.deserialize(response, "{{returnContainer}}", {{returnBaseType}}.class){{/returnType}};
+        return {{#returnType}}({{{returnType}}}) apiClient.deserialize(response, "{{returnContainer}}", {{returnBaseType}}.class){{/returnType}};
       }
       else {
         return {{#returnType}}null{{/returnType}};

modules/swagger-codegen/src/main/resources/Java/apiException.mustache

@@ -1,8 +1,13 @@
 package {{invokerPackage}};
 
+import java.util.Map;
+import java.util.List;
+
 public class ApiException extends Exception {
-  int code = 0;
-  String message = null;
+  private int code = 0;
+  private String message = null;
+  private Map<String, List<String>> responseHeaders = null;
+  private String responseBody = null;
 
   public ApiException() {}
 
@@ -11,19 +16,32 @@ public class ApiException extends Exception {
     this.message = message;
   }
 
-  public int getCode() {
-    return code;
+  public ApiException(int code, String message, Map<String, List<String>> responseHeaders, String responseBody) {
+    this.code = code;
+    this.message = message;
+    this.responseHeaders = responseHeaders;
+    this.responseBody = responseBody;
   }
 
-  public void setCode(int code) {
-    this.code = code;
+  public int getCode() {
+    return code;
   }
 
   public String getMessage() {
     return message;
   }
 
-  public void setMessage(String message) {
-    this.message = message;
+  /**
+   * Get the HTTP response headers.
+   */
+  public Map<String, List<String>> getResponseHeaders() {
+    return responseHeaders;
+  }
+
+  /**
+   * Get the HTTP response body.
+   */
+  public String getResponseBody() {
+    return responseBody;
   }
 }

modules/swagger-codegen/src/main/resources/JavaJaxRS/api.mustache

@@ -44,7 +44,6 @@ public class {{classname}}  {
     public Response {{nickname}}({{#allParams}}{{>queryParams}}{{>pathParams}}{{>headerParams}}{{>bodyParams}}{{>formParams}}{{#hasMore}},
     {{/hasMore}}{{/allParams}})
     throws NotFoundException {
-    // do some magic!
     return delegate.{{nickname}}({{#allParams}}{{#isFile}}fileDetail{{/isFile}}{{^isFile}}{{paramName}}{{/isFile}}{{#hasMore}},{{/hasMore}}{{/allParams}});
     }
 {{/operation}}

modules/swagger-codegen/src/main/resources/META-INF/services/com.wordnik.swagger.codegen.CodegenConfig

@@ -10,6 +10,7 @@ com.wordnik.swagger.codegen.languages.PhpClientCodegen
 com.wordnik.swagger.codegen.languages.PythonClientCodegen
 com.wordnik.swagger.codegen.languages.Python3ClientCodegen
 com.wordnik.swagger.codegen.languages.Qt5CPPGenerator
+com.wordnik.swagger.codegen.languages.RetrofitClientCodegen
 com.wordnik.swagger.codegen.languages.RubyClientCodegen
 com.wordnik.swagger.codegen.languages.ScalaClientCodegen
 com.wordnik.swagger.codegen.languages.ScalatraServerCodegen

modules/swagger-codegen/src/main/resources/csharp/ApiClient.mustache

@@ -0,0 +1,207 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Net;
+using System.Text;
+using Newtonsoft.Json;
+using RestSharp;
+
+namespace {{invokerPackage}} {
+  /// <summary>
+  /// API client is mainly responible for making the HTTP call to the API backend
+  /// </summary>
+  public class ApiClient {
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="ApiClient"/> class.
+    /// </summary>
+    /// <param name="basePath">The base path.</param>
+    public ApiClient(String basePath="{{basePath}}") {
+      this.basePath = basePath;
+      this.restClient = new RestClient(this.basePath);
+    }
+
+    /// <summary>
+    /// Gets or sets the base path.
+    /// </summary>
+    /// <value>The base path.</value> 
+    public string basePath { get; set; }
+
+    /// <summary>
+    /// Gets or sets the RestClient
+    /// </summary>
+    /// <value>The RestClient.</value> 
+    public RestClient restClient { get; set; }
+
+    private Dictionary<String, String> defaultHeaderMap = new Dictionary<String, String>();
+
+    public Object CallApi(String Path, RestSharp.Method Method, Dictionary<String, String> QueryParams, String PostBody, 
+      Dictionary<String, String> HeaderParams, Dictionary<String, String> FormParams, Dictionary<String, String> FileParams, String[] AuthSettings) {
+
+      var request = new RestRequest(Path, Method);
+
+      UpdateParamsForAuth(QueryParams, HeaderParams, AuthSettings);
+
+      // add default header, if any
+      foreach(KeyValuePair<string, string> defaultHeader in this.defaultHeaderMap)
+        request.AddHeader(defaultHeader.Key, defaultHeader.Value);
+
+      // add header parameter, if any
+      foreach(KeyValuePair<string, string> param in HeaderParams)
+        request.AddHeader(param.Key, param.Value);
+     
+      // add query parameter, if any
+      foreach(KeyValuePair<string, string> param in QueryParams)
+        request.AddQueryParameter(param.Key, param.Value);
+
+      // add form parameter, if any
+      foreach(KeyValuePair<string, string> param in FormParams)
+        request.AddParameter(param.Key, param.Value);
+
+      // add file parameter, if any
+      foreach(KeyValuePair<string, string> param in FileParams)
+        request.AddFile(param.Key, param.Value);
+
+      if (PostBody != null) {
+        request.AddParameter("application/json", PostBody, ParameterType.RequestBody); // http body (model) parameter
+      }
+
+      return (Object)restClient.Execute(request);
+
+    }
+
+    /// <summary>
+    /// Add default header
+    /// </summary>
+    /// <param name="key">  Header field name
+    /// <param name="value"> Header field value
+    /// <returns></returns>
+    public void AddDefaultHeader(string key, string value) {
+       defaultHeaderMap.Add(key, value);
+    }
+
+    /// <summary>
+    /// Get default header
+    /// </summary>
+    /// <returns>Dictionary of default header</returns>
+    public Dictionary<String, String> GetDefaultHeader() {
+       return defaultHeaderMap;
+    }
+
+    /// <summary>
+    /// escape string (url-encoded)
+    /// </summary>
+    /// <param name="str"> String to be escaped
+    /// <returns>Escaped string</returns>
+    public string EscapeString(string str) {
+      return str;
+    }
+
+    /// <summary>
+    /// if parameter is DateTime, output in ISO8601 format
+    /// if parameter is a list of string, join the list with ","
+    /// otherwise just return the string
+    /// </summary>
+    /// <param name="obj"> The parameter (header, path, query, form)
+    /// <returns>Formatted string</returns>
+    public string ParameterToString(object obj)
+    {
+      if (obj is DateTime) {
+        return ((DateTime)obj).ToString ("u");
+      } else if (obj is List<string>) {
+        return String.Join(",", obj as List<string>);
+      } else {
+	return Convert.ToString (obj);
+      }
+    }
+
+    /// <summary>
+    /// Deserialize the JSON string into a proper object
+    /// </summary>
+    /// <param name="json"> JSON string
+    /// <param name="type"> Object type
+    /// <returns>Object representation of the JSON string</returns>
+    public object Deserialize(string content, Type type) {
+      if (type.GetType() == typeof(Object))
+        return (Object)content;
+
+      try
+      {
+          return JsonConvert.DeserializeObject(content, type);
+      }
+      catch (IOException e) {
+        throw new ApiException(500, e.Message);
+      }
+    }
+
+    /// <summary>
+    /// Serialize an object into JSON string
+    /// </summary>
+    /// <param name="obj"> Object 
+    /// <returns>JSON string</returns>
+    public string Serialize(object obj) {
+      try
+      {
+          return obj != null ? JsonConvert.SerializeObject(obj) : null;
+      }
+      catch (Exception e) {
+        throw new ApiException(500, e.Message);
+      }
+    }
+
+    /// <summary>
+    /// Get the API key with prefix
+    /// </summary>
+    /// <param name="obj"> Object 
+    /// <returns>API key with prefix</returns>
+    public string GetApiKeyWithPrefix (string apiKey)
+    {
+      var apiKeyValue = "";
+      Configuration.apiKey.TryGetValue (apiKey, out apiKeyValue);
+      var apiKeyPrefix = "";
+      if (Configuration.apiKeyPrefix.TryGetValue (apiKey, out apiKeyPrefix)) {
+        return apiKeyPrefix + " " + apiKeyValue;
+      } else {
+        return apiKeyValue;
+      }
+    }
+
+    /// <summary>
+    /// Update parameters based on authentication
+    /// </summary>
+    /// <param name="QueryParams">Query parameters</param>
+    /// <param name="HeaderParams">Header parameters</param>
+    /// <param name="AuthSettings">Authentication settings</param>
+    public void UpdateParamsForAuth(Dictionary<String, String> QueryParams, Dictionary<String, String> HeaderParams, string[] AuthSettings) {
+      if (AuthSettings == null || AuthSettings.Length == 0)
+        return;
+  
+      foreach (string auth in AuthSettings) {
+        // determine which one to use
+        switch(auth) {
+          {{#authMethods}}
+          case "{{name}}":
+            {{#isApiKey}}{{#isKeyInHeader}}HeaderParams["{{keyParamName}}"] = GetApiKeyWithPrefix("{{keyParamName}}");{{/isKeyInHeader}}{{#isKeyInQuery}}QueryParams["{{keyParamName}}"] = GetApiKeyWithPrefix("{{keyParamName}}");{{/isKeyInQuery}}{{/isApiKey}}{{#isBasic}}HeaderParams["Authorization"] = "Basic " + Base64Encode(Configuration.username + ":" + Configuration.password);{{/isBasic}}
+            {{#isOAuth}}//TODO support oauth{{/isOAuth}}
+            break;
+          {{/authMethods}}
+          default:
+            //TODO show warning about security definition not found
+          break;
+        }
+      }
+
+    }
+
+    /// <summary>
+    /// Encode string in base64 format 
+    /// </summary>
+    /// <param name="text">String to be encoded</param>
+    public static string Base64Encode(string text) {
+      var textByte = System.Text.Encoding.UTF8.GetBytes(text);
+      return System.Convert.ToBase64String(textByte);
+    }
+
+  }
+}

modules/swagger-codegen/src/main/resources/csharp/Configuration.mustache

@@ -0,0 +1,47 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Net;
+using System.Text;
+using {{invokerPackage}};
+
+namespace {{invokerPackage}} {
+  /// <summary>
+  /// Represents a set of configuration settings
+  /// </summary>
+  public class Configuration{
+
+    /// <summary>
+    /// Gets or sets the API client. This is the default API client for making HTTP calls.
+    /// </summary>
+    /// <value>The API client.</value>
+    public static ApiClient apiClient = new ApiClient();
+
+    /// <summary>
+    /// Gets or sets the username (HTTP basic authentication)
+    /// </summary>
+    /// <value>The username.</value>
+    public static String username { get; set; }
+
+    /// <summary>
+    /// Gets or sets the password (HTTP basic authentication)
+    /// </summary>
+    /// <value>The password.</value>
+    public static String password { get; set; }
+
+    /// <summary>
+    /// Gets or sets the API key based on the authentication name 
+    /// </summary>
+    /// <value>The API key.</value>
+    public static Dictionary<String, String> apiKey = new Dictionary<String, String>();
+
+    /// <summary>
+    /// Gets or sets the prefix (e.g. Token) of the API key based on the authentication name 
+    /// </summary>
+    /// <value>The prefix of the API key.</value>
+    public static Dictionary<String, String> apiKeyPrefix = new Dictionary<String, String>();
+
+
+  }
+}

modules/swagger-codegen/src/main/resources/csharp/api.mustache

@@ -8,35 +8,56 @@ using {{modelPackage}};
 
 namespace {{package}} {
   {{#operations}}
+  /// <summary>
+  /// Represents a collection of functions to interact with the API endpoints
+  /// </summary>
   public class {{classname}} {
-    string basePath;
-    protected RestClient restClient;
-
-    public {{classname}}(String basePath = "{{basePath}}")
-    {
-      this.basePath = basePath;
-      this.restClient = new RestClient(basePath);
-    }
-
     /// <summary>
-    /// Sets the endpoint base url for the services being accessed
+    /// Initializes a new instance of the <see cref="{{classname}}"/> class.
     /// </summary>
-    /// <param name="basePath"> Base URL
+    /// <param name="apiClient"> an instance of ApiClient (optional)
     /// <returns></returns>
-    public void SetBasePath(string basePath) {
-      this.basePath = basePath;
+    public {{classname}}(ApiClient apiClient = null) {
+      if (apiClient == null) { // use the default one in Configuration
+        this.apiClient = Configuration.apiClient; 
+      } else {
+        this.apiClient = apiClient;
+      }
     }
 
     /// <summary>
-    /// Gets the endpoint base url for the services being accessed
-    /// <returns>Base URL</returns>
+    /// Initializes a new instance of the <see cref="{{classname}}"/> class.
     /// </summary>
-    public String GetBasePath() {
-      return this.basePath;
+    /// <returns></returns>
+    public {{classname}}(String basePath)
+    {
+      this.apiClient = new ApiClient(basePath);
     }
 
+    /// <summary>
+    /// Sets the base path of the API client.
+    /// </summary>
+    /// <value>The base path</value>
+    public void SetBasePath(String basePath) {
+      this.apiClient.basePath = basePath;
+    }
+
+    /// <summary>
+    /// Gets the base path of the API client.
+    /// </summary>
+    /// <value>The base path</value>
+    public String GetBasePath(String basePath) {
+      return this.apiClient.basePath;
+    }
+
+    /// <summary>
+    /// Gets or sets the API client.
+    /// </summary>
+    /// <value>The API client</value>
+    public ApiClient apiClient {get; set;}
+
+
     {{#operation}}
-    
     /// <summary>
     /// {{summary}} {{notes}}
     /// </summary>
@@ -45,37 +66,41 @@ namespace {{package}} {
     /// <returns>{{#returnType}}{{{returnType}}}{{/returnType}}</returns>
     public {{#returnType}}{{{returnType}}}{{/returnType}}{{^returnType}}void{{/returnType}} {{nickname}} ({{#allParams}}{{{dataType}}} {{paramName}}{{#hasMore}}, {{/hasMore}}{{/allParams}}) {
 
-      var _request = new RestRequest("{{path}}", Method.{{httpMethod}});
-
       {{#allParams}}{{#required}}
       // verify the required parameter '{{paramName}}' is set
       if ({{paramName}} == null) throw new ApiException(400, "Missing required parameter '{{paramName}}' when calling {{nickname}}");
       {{/required}}{{/allParams}}
 
-      // add default header, if any
-      foreach(KeyValuePair<string, string> defaultHeader in ApiInvoker.GetDefaultHeader())
-      {
-        _request.AddHeader(defaultHeader.Key, defaultHeader.Value);
-      }
-
-      _request.AddUrlSegment("format", "json"); // set format to json by default
-      {{#pathParams}}_request.AddUrlSegment("{{baseName}}", ApiInvoker.ParameterToString({{{paramName}}})); // path (url segment) parameter
+      var path = "{{path}}";
+      path = path.Replace("{format}", "json");
+      {{#pathParams}}path = path.Replace("{" + "{{baseName}}" + "}", apiClient.ParameterToString({{{paramName}}}));
       {{/pathParams}}
-      {{#queryParams}} if ({{paramName}} != null) _request.AddParameter("{{baseName}}", ApiInvoker.ParameterToString({{paramName}})); // query parameter
+
+      var queryParams = new Dictionary<String, String>();
+      var headerParams = new Dictionary<String, String>();
+      var formParams = new Dictionary<String, String>();
+      var fileParams = new Dictionary<String, String>();
+      String postBody = null;
+
+      {{#queryParams}} if ({{paramName}} != null) queryParams.Add("{{baseName}}", apiClient.ParameterToString({{paramName}})); // query parameter
       {{/queryParams}}
-      {{#headerParams}} if ({{paramName}} != null) _request.AddHeader("{{baseName}}", ApiInvoker.ParameterToString({{paramName}})); // header parameter
+      {{#headerParams}} if ({{paramName}} != null) headerParams.Add("{{baseName}}", apiClient.ParameterToString({{paramName}})); // header parameter
       {{/headerParams}}
-      {{#formParams}}if ({{paramName}} != null) {{#isFile}}_request.AddFile("{{baseName}}", {{paramName}});{{/isFile}}{{^isFile}}_request.AddParameter("{{baseName}}", ApiInvoker.ParameterToString({{paramName}})); // form parameter{{/isFile}}
+      {{#formParams}}if ({{paramName}} != null) {{#isFile}}fileParams.Add("{{baseName}}", {{paramName}});{{/isFile}}{{^isFile}}formParams.Add("{{baseName}}", apiClient.ParameterToString({{paramName}})); // form parameter{{/isFile}}
       {{/formParams}}
-      {{#bodyParam}}_request.AddParameter("application/json", ApiInvoker.Serialize({{paramName}}), ParameterType.RequestBody); // http body (model) parameter
+      {{#bodyParam}}postBody = apiClient.Serialize({{paramName}}); // http body (model) parameter
       {{/bodyParam}}
 
+      // authentication setting, if any
+      String[] authSettings = new String[] { {{#authMethods}}"{{name}}"{{#hasMore}}, {{/hasMore}}{{/authMethods}} };
+
       // make the HTTP request
-      IRestResponse response = restClient.Execute(_request);
+      IRestResponse response = (IRestResponse) apiClient.CallApi(path, Method.{{httpMethod}}, queryParams, postBody, headerParams, formParams, fileParams, authSettings);
+
       if (((int)response.StatusCode) >= 400) {
         throw new ApiException ((int)response.StatusCode, "Error calling {{nickname}}: " + response.Content);
       }
-      {{#returnType}}return ({{{returnType}}}) ApiInvoker.Deserialize(response.Content, typeof({{{returnType}}}));{{/returnType}}{{^returnType}}
+      {{#returnType}}return ({{{returnType}}}) apiClient.Deserialize(response.Content, typeof({{{returnType}}}));{{/returnType}}{{^returnType}}
       return;{{/returnType}}
     }
     {{/operation}}

modules/swagger-codegen/src/main/resources/csharp/apiException.mustache

@@ -1,13 +1,27 @@
 using System;
 
 namespace {{invokerPackage}} {
-
+  /// <summary>
+  /// API Exception
+  /// </summary>
   public class ApiException : Exception {
-
+    /// <summary>
+    /// Gets or sets the error code (HTTP status code)
+    /// </summary>
+    /// <value>The error code (HTTP status code).</value>
     public int ErrorCode { get; set; }
 
+    /// <summary>
+    /// Initializes a new instance of the <see cref="ApiException"/> class.
+    /// </summary>
+    /// <param name="basePath">The base path.</param>
     public ApiException() {}
 
+    /// <summary>
+    /// Initializes a new instance of the <see cref="ApiException"/> class.
+    /// </summary>
+    /// <param name="errorCode">HTTP status code.</param>
+    /// <param name="message">Error message.</param>
     public ApiException(int errorCode, string message) : base(message) {
       this.ErrorCode = errorCode;
     }

modules/swagger-codegen/src/main/resources/csharp/apiInvoker.mustache

@@ -1,84 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Net;
-using System.Text;
-using Newtonsoft.Json;
-
-namespace {{invokerPackage}} {
-  public class ApiInvoker {
-    private static Dictionary<String, String> defaultHeaderMap = new Dictionary<String, String>();
-
-    /// <summary>
-    /// Add default header
-    /// </summary>
-    /// <param name="key">  Header field name
-    /// <param name="value"> Header field value
-    /// <returns></returns>
-    public static void AddDefaultHeader(string key, string value) {
-       defaultHeaderMap.Add(key, value);
-    }
-
-    /// <summary>
-    /// Get default header
-    /// </summary>
-    /// <returns>Dictionary of default header</returns>
-    public static Dictionary<String, String> GetDefaultHeader() {
-       return defaultHeaderMap;
-    }
-
-    /// <summary>
-    /// escape string (url-encoded)
-    /// </summary>
-    /// <param name="str"> String to be escaped
-    /// <returns>Escaped string</returns>
-    public static string EscapeString(string str) {
-      return str;
-    }
-
-    /// <summary>
-    /// if parameter is DateTime, output in ISO8601 format, otherwise just return the string
-    /// </summary>
-    /// <param name="obj"> The parameter (header, path, query, form)
-    /// <returns>Formatted string</returns>
-    public static string ParameterToString(object obj)
-    {
-      return (obj is DateTime) ? ((DateTime)obj).ToString ("u") : Convert.ToString (obj);
-    }
-
-    /// <summary>
-    /// Deserialize the JSON string into a proper object
-    /// </summary>
-    /// <param name="json"> JSON string
-    /// <param name="type"> Object type
-    /// <returns>Object representation of the JSON string</returns>
-    public static object Deserialize(string content, Type type) {
-      if (type.GetType() == typeof(Object))
-        return (Object)content;
-
-      try
-      {
-          return JsonConvert.DeserializeObject(content, type);
-      }
-      catch (IOException e) {
-        throw new ApiException(500, e.Message);
-      }
-    }
-
-    /// <summary>
-    /// Serialize an object into JSON string
-    /// </summary>
-    /// <param name="obj"> Object 
-    /// <returns>JSON string</returns>
-    public static string Serialize(object obj) {
-      try
-      {
-          return obj != null ? JsonConvert.SerializeObject(obj) : null;
-      }
-      catch (Exception e) {
-        throw new ApiException(500, e.Message);
-      }
-    }
-  }
-}

modules/swagger-codegen/src/main/resources/csharp/compile.mustache

@@ -1,2 +1,3 @@
 SET CSCPATH=%SYSTEMROOT%\Microsoft.NET\Framework\v4.0.30319
-%CSCPATH%\csc /reference:bin/Newtonsoft.Json.dll /target:library /out:bin/{{invokerPackage}}.dll /recurse:src\*.cs /doc:bin/{{invokerPackage}}.xml
+%CSCPATH%\csc /reference:bin/Newtonsoft.Json.dll;bin/RestSharp.dll /target:library /out:bin/{{invokerPackage}}.dll /recurse:src\*.cs /doc:bin/{{invokerPackage}}.xml
+

modules/swagger-codegen/src/main/resources/csharp/model.mustache

@@ -3,10 +3,15 @@ using System.Text;
 using System.Collections;
 using System.Collections.Generic;
 using System.Runtime.Serialization;
+using Newtonsoft.Json;
 
 {{#models}}
 {{#model}}
 namespace {{package}} {
+
+  /// <summary>
+  /// {{description}}
+  /// </summary>
   [DataContract]
   public class {{classname}} {
     {{#vars}}
@@ -15,6 +20,11 @@ namespace {{package}} {
     public {{{datatype}}} {{name}} { get; set; }
 
     {{/vars}}
+
+    /// <summary>
+    /// Get the string presentation of the object
+    /// </summary>
+    /// <returns>String presentation of the object</returns>
     public override string ToString()  {
       var sb = new StringBuilder();
       sb.Append("class {{classname}} {\n");
@@ -24,7 +34,16 @@ namespace {{package}} {
       sb.Append("}\n");
       return sb.ToString();
     }
+
+    /// <summary>
+    /// Get the JSON string presentation of the object
+    /// </summary>
+    /// <returns>JSON string presentation of the object</returns>
+    public string ToJson() {
+      return JsonConvert.SerializeObject(this, Formatting.Indented);
     }
+
+}
   {{/model}}
   {{/models}}
 }

modules/swagger-codegen/src/main/resources/objc/SWGApiClient.m

@@ -134,10 +134,12 @@ static bool loggingEnabled = true;
 }
 
 +(NSNumber*) nextRequestId {
+    @synchronized(self) {
         long nextId = ++requestId;
         if(loggingEnabled)
             NSLog(@"got id %ld", nextId);
         return [NSNumber numberWithLong:nextId];
+    }
 }
 
 +(NSNumber*) queueRequest {

modules/swagger-codegen/src/main/resources/objc/api-body.mustache

@@ -2,7 +2,6 @@
 #import "{{classname}}.h"
 #import "SWGFile.h"
 #import "SWGQueryParamCollection.h"
-#import "SWGApiClient.h"
 {{#imports}}#import "{{import}}.h"
 {{/imports}}
 {{newline}}
@@ -12,8 +11,34 @@
 @end
 
 @implementation {{classname}}
+
 static NSString * basePath = @"{{basePath}}";
 
+#pragma mark - Initialize methods
+
+- (id) init {
+    self = [super init];
+    if (self) {
+        self.apiClient = [SWGApiClient sharedClientFromPool:basePath];
+        self.defaultHeaders = [NSMutableDictionary dictionary];
+    }
+    return self;
+}
+
+- (id) initWithApiClient:(SWGApiClient *)apiClient {
+    self = [super init];
+    if (self) {
+        if (apiClient) {
+            self.apiClient = apiClient;
+        }
+        else {
+            self.apiClient = [SWGApiClient sharedClientFromPool:basePath];
+        }
+        self.defaultHeaders = [NSMutableDictionary dictionary];
+    }
+    return self;
+}
+
 +({{classname}}*) apiWithHeader:(NSString*)headerValue key:(NSString*)key {
     static {{classname}}* singletonAPI = nil;
 
@@ -32,21 +57,10 @@ static NSString * basePath = @"{{basePath}}";
     return basePath;
 }
 
--(SWGApiClient*) apiClient {
-    return [SWGApiClient sharedClientFromPool:basePath];
-}
-
 -(void) addHeader:(NSString*)value forKey:(NSString*)key {
     [self.defaultHeaders setValue:value forKey:key];
 }
 
--(id) init {
-    self = [super init];
-    self.defaultHeaders = [NSMutableDictionary dictionary];
-    [self apiClient];
-    return self;
-}
-
 -(void) setHeaderValue:(NSString*) value
            forKey:(NSString*)key {
     [self.defaultHeaders setValue:value forKey:key];
@@ -177,8 +191,6 @@ static NSString * basePath = @"{{basePath}}";
     {{/requiredParams}}
     {{/requiredParamCount}}
 
-    SWGApiClient* client = [SWGApiClient sharedClientFromPool:basePath];
-
     {{#returnContainer}}
     // response is in a container
     {{>apiBodyResponseWithContainer}}{{/returnContainer}}
@@ -206,3 +218,6 @@ static NSString * basePath = @"{{basePath}}";
 {{newline}}
 {{/operations}}
 @end
+
+
+

modules/swagger-codegen/src/main/resources/objc/api-header.mustache

@@ -2,11 +2,14 @@
 {{#imports}}#import "{{import}}.h"
 {{/imports}}
 #import "SWGObject.h"
+#import "SWGApiClient.h"
 {{newline}}
 
 {{#operations}}
 @interface {{classname}}: NSObject
 
+@property(nonatomic, assign)SWGApiClient *apiClient;
+
 -(void) addHeader:(NSString*)value forKey:(NSString*)key;
 -(unsigned long) requestQueueSize;
 +({{classname}}*) apiWithHeader:(NSString*)headerValue key:(NSString*)key;

modules/swagger-codegen/src/main/resources/objc/apiBodyResponseWithContainer.mustache

@@ -1,5 +1,5 @@
     // {{returnContainer}} container response type
-    return [client dictionary: requestUrl 
+    return [self.apiClient dictionary: requestUrl 
                        method: @"{{httpMethod}}" 
                   queryParams: queryParams 
                          body: bodyDictionary 

modules/swagger-codegen/src/main/resources/objc/apiNonPrimitiveResponse.mustache

@@ -1,6 +1,6 @@
     {{^returnTypeIsPrimitive}}
     // comples response type
-    return [client dictionary: requestUrl
+    return [self.apiClient dictionary: requestUrl
                        method: @"{{httpMethod}}"
                   queryParams: queryParams
                          body: bodyDictionary

modules/swagger-codegen/src/main/resources/objc/apiPrimitiveResponse.mustache

@@ -1,5 +1,5 @@
         // primitive response type
-    {{#returnBaseType}}return [client stringWithCompletionBlock: requestUrl 
+    {{#returnBaseType}}return [self.apiClient stringWithCompletionBlock: requestUrl 
                                               method: @"{{httpMethod}}" 
                                          queryParams: queryParams 
                                                 body: bodyDictionary 
@@ -17,7 +17,7 @@
     {{/returnBaseType}}
     {{^returnBaseType}}
     // no return base type
-    return [client stringWithCompletionBlock: requestUrl 
+    return [self.apiClient stringWithCompletionBlock: requestUrl 
                                       method: @"{{httpMethod}}" 
                                  queryParams: queryParams 
                                         body: bodyDictionary 

modules/swagger-codegen/src/main/resources/objc/voidResponse.mustache

@@ -1,4 +1,4 @@
-    return [client stringWithCompletionBlock: requestUrl 
+    return [self.apiClient stringWithCompletionBlock: requestUrl 
                                       method: @"{{httpMethod}}" 
                                  queryParams: queryParams 
                                         body: bodyDictionary 

modules/swagger-codegen/src/main/resources/perl/Configuration.mustache

@@ -0,0 +1,22 @@
+package WWW::{{invokerPackage}}::Configuration;
+
+use strict;
+use warnings;
+use utf8;
+
+use Log::Any qw($log);
+use Carp;
+
+# class/static variables
+our $api_client;
+our $http_timeout = 180;
+our $http_user_agent = 'Perl-Swagger';
+
+# authenticaiton setting
+our $api_key = {};
+our $api_key_prefix = {};
+our $username;
+our $password;
+
+
+1;

modules/swagger-codegen/src/main/resources/perl/api.mustache

@@ -27,14 +27,10 @@ use Exporter;
 use Carp qw( croak );
 use Log::Any qw($log);
 
-
-#use WWW::Swagger::Model::Category;
-#use WWW::Swagger::Model::Pet;
+use WWW::{{invokerPackage}}::ApiClient;
+use WWW::{{invokerPackage}}::Configuration;
 
 {{#operations}}
-
-use WWW::{{invokerPackage}}::APIClient;
-
 our @EXPORT_OK = qw(
   {{#operation}}{{{nickname}}} 
   {{/operation}}
@@ -42,7 +38,7 @@ our @EXPORT_OK = qw(
 
 sub new {
     my $class   = shift;
-    my $default_api_client = WWW::{{invokerPackage}}::APIClient->new;
+    my $default_api_client = $WWW::{{invokerPackage}}::Configuration::api_client ? $WWW::{{invokerPackage}}::Configuration::api_client  : WWW::{{invokerPackage}}::ApiClient->new;
     my (%self) = (
         'api_client' => $default_api_client,
         @_
@@ -92,41 +88,41 @@ sub new {
       }
       $header_params->{'Content-Type'} = $self->{api_client}->select_header_content_type({{#consumes}}'{{mediaType}}'{{#hasMore}}, {{/hasMore}}{{/consumes}});
 
-      {{#queryParams}} # query params
+      {{#queryParams}}# query params
       if ( exists $args{'{{paramName}}'}) {
-        $query_params->{'{{baseName}}'} = WWW::{{invokerPacakge}}::APIClient::to_query_value($args{'{{paramName}}'});
+        $query_params->{'{{baseName}}'} = $self->{api_client}->to_query_value($args{'{{paramName}}'});
       }{{/queryParams}}
-      {{#headerParams}} # header params
+      {{#headerParams}}# header params
       if ( exists $args{'{{paramName}}'}) {
-        $header_params->{'{{baseName}}'} = WWW::{{invokerPackage}}::APIClient::to_header_value($args{'{{paramName}}'});
+        $header_params->{'{{baseName}}'} = $self->{api_client}->to_header_value($args{'{{paramName}}'});
       }{{/headerParams}}
-      {{#pathParams}} # path params
+      {{#pathParams}}# path params
       if ( exists $args{'{{paramName}}'}) {
         my $_base_variable = "{" . "{{baseName}}" . "}";
-        my $_base_value = WWW::{{invokerPackage}}::APIClient::to_path_value($args{'{{paramName}}'});
+        my $_base_value = $self->{api_client}->to_path_value($args{'{{paramName}}'});
         $_resource_path =~ s/$_base_variable/$_base_value/g;
       }{{/pathParams}}
-      {{#formParams}} # form params
+      {{#formParams}}# form params
       if ( exists $args{'{{paramName}}'} ) {
         {{#isFile}}$form_params->{'{{baseName}}'} = [] unless defined $form_params->{'{{baseName}}'};
         push $form_params->{'{{baseName}}'}, $args{'{{paramName}}'};
         {{/isFile}}
-        {{^isFile}}$form_params->{'{{baseName}}'} = WWW::{{invokerPackage}}::APIClient::to_form_value($args{'{{paramName}}'});
+        {{^isFile}}$form_params->{'{{baseName}}'} = $self->{api_client}->to_form_value($args{'{{paramName}}'});
         {{/isFile}}
       }{{/formParams}}
       my $_body_data;
-      {{#bodyParams}} # body params
+      {{#bodyParams}}# body params
       if ( exists $args{'{{paramName}}'}) {
         $_body_data = $args{'{{paramName}}'};
       }{{/bodyParams}}
 
-      # for HTTP post (form)
-      #$_body_data = $_body ? undef : $form_params;
+      # authentication setting, if any
+      my $auth_settings = [{{#authMethods}}'{{name}}'{{#hasMore}}, {{/hasMore}}{{/authMethods}}];
 
       # make the API Call
       {{#returnType}}my $response = $self->{api_client}->call_api($_resource_path, $_method,
                                              $query_params, $form_params,
-                                             $header_params, $_body_data);
+                                             $header_params, $_body_data, $auth_settings);
       if (!$response) {
         return;
       }
@@ -134,7 +130,7 @@ sub new {
       return $_response_object;{{/returnType}}
       {{^returnType}}$self->{api_client}->call_api($_resource_path, $_method,
                                              $query_params, $form_params,
-                                             $header_params, $_body_data);
+                                             $header_params, $_body_data, $auth_settings);
       return;
       {{/returnType}}
   }

modules/swagger-codegen/src/main/resources/perlApiClient.mustache

@@ -1,9 +1,10 @@
-package WWW::{{invokerPackage}}::APIClient;
+package WWW::{{invokerPackage}}::ApiClient;
 
 use strict;
 use warnings;
 use utf8;
 
+use MIME::Base64;
 use LWP::UserAgent;
 use HTTP::Headers;
 use HTTP::Response;
@@ -15,20 +16,18 @@ use URI::Escape;
 use Scalar::Util;
 use Log::Any qw($log);
 use Carp;
-use Switch;
 use Module::Runtime qw(use_module);
 
-# class variables
-my $ua = LWP::UserAgent->new;
-my $http_user_agent = 'Perl-Swagger'; # HTTP user-agent
-my $http_timeout; #timeout
-my $base_url = "{{basePath}}";
-
+use WWW::{{invokerPackage}}::Configuration;
 
 sub new
 {
   my $class = shift;
-  my %args = @_;
+  my (%args) = (
+    'ua' => LWP::UserAgent->new,
+    'base_url' => '{{basePath}}',
+    @_
+  );
 
   return bless \%args, $class;
 }
@@ -38,8 +37,8 @@ sub new
 # @param string $user_agent The user agent of the API client
 #
 sub set_user_agent {
-  my $user_agent = shift;
-  $http_user_agent= $user_agent;
+  my ($self, $user_agent) = @_;
+  $self->{http_user_agent}= $user_agent;
 }
 
 # Set timeout
@@ -47,11 +46,11 @@ sub set_user_agent {
 # @param integer $seconds Number of seconds before timing out [set to 0 for no timeout]
 # 
 sub set_timeout {
-  my $seconds = shift;
+  my ($self, $seconds) = @_;
   if (!looks_like_number($seconds)) {
     croak('Timeout variable must be numeric.');
   }
-  $http_timeout = $seconds;
+  $self->{http_timeout} = $seconds;
 }
 
 # make the HTTP request
@@ -63,60 +62,63 @@ sub set_timeout {
 # @return mixed
 sub call_api {
   my $self = shift;
-  my ($resource_path, $method, $query_params, $post_params, $header_params, $body_data) = @_;
+  my ($resource_path, $method, $query_params, $post_params, $header_params, $body_data, $auth_settings) = @_;
 
-  my $headers = HTTP::Headers->new(%$header_params);
+  # update parameters based on authentication settings
+  $self->update_params_for_auth($header_params, $query_params, $auth_settings); 
 
-  my $_url = $base_url . $resource_path;
+
+  my $_url = $self->{base_url} . $resource_path;
 
   # build query 
   if (%$query_params) {
     $_url = ($_url . '?' . eval { URI::Query->new($query_params)->stringify });
   }
 
+
   # body data
   $body_data = to_json($body_data->to_hash) if defined $body_data && $body_data->can('to_hash'); # model to json string
   my $_body_data = %$post_params ? $post_params : $body_data;
 
   # Make the HTTP request
   my $_request;
-  switch ($method) {
-    case 'POST' {
+  if ($method eq 'POST') {
       # multipart
-      my $_content_type = lc $header_params->{'Content-Type'} eq 'multipart/form' ? 
+      $header_params->{'Content-Type'} = lc $header_params->{'Content-Type'} eq 'multipart/form' ? 
           'form-data' : $header_params->{'Content-Type'};
       
-      $_request = POST($_url, Accept => $header_params->{Accept},
-        Content_Type => $_content_type, Content => $_body_data);
+      $_request = POST($_url, %$header_params, Content => $_body_data);
+
   }
-    case 'PUT' {
+  elsif ($method eq 'PUT') {
       # multipart
-      my $_content_type = lc $header_params->{'Content-Type'} eq 'multipart/form' ? 
+      $header_params->{'Content-Type'}  = lc $header_params->{'Content-Type'} eq 'multipart/form' ? 
           'form-data' : $header_params->{'Content-Type'};
-      $_request = PUT($_url, Accept => $header_params->{Accept},
-        Content_Type => $_content_type, Content => $_body_data);
-    }
-    case 'GET' {
-      $_request = GET($_url, Accept => $header_params->{'Accept'},
-        Content_Type => $header_params->{'Content-Type'});
-    }
-    case 'HEAD' {
-      $_request = HEAD($_url, Accept => $header_params->{'Accept'},
-        Content_Type => $header_params->{'Content-Type'});
-    }
-    case 'DELETE' { #TODO support form data
-      $_request = DELETE($_url, Accept => $header_params->{'Accept'},
-        Content_Type => $header_params->{'Content-Type'}, Content => $_body_data);
-    }
-    case 'PATCH' { #TODO
-    }
+
+      $_request = PUT($_url, %$header_params, Content => $_body_data);
 
   }
+  elsif ($method eq 'GET') {
+      my $headers = HTTP::Headers->new(%$header_params);
+      $_request = GET($_url, %$header_params);
+  }
+  elsif ($method eq 'HEAD') {
+      my $headers = HTTP::Headers->new(%$header_params);
+      $_request = HEAD($_url,%$header_params); 
+  }
+  elsif ($method eq 'DELETE') { #TODO support form data
+      my $headers = HTTP::Headers->new(%$header_params);
+      $_request = DELETE($_url, %$headers);
+  }
+  elsif ($method eq 'PATCH') { #TODO
+  }
+  else {
+  }
  
-  $ua->timeout($http_timeout); 
-  $ua->agent($http_user_agent);
+  $self->{ua}->timeout($self->{http_timeout} || $WWW::{{invokerPackage}}::Configuration::http_timeout); 
+  $self->{ua}->agent($self->{http_user_agent} || $WWW::{{invokerPackage}}::Configuration::http_user_agent);
   
-  my $_response = $ua->request($_request);
+  my $_response = $self->{ua}->request($_request);
 
   unless ($_response->is_success) {
     croak("API Exception(".$_response->code."): ".$_response->message);
@@ -126,41 +128,13 @@ sub call_api {
 
 }
 
-
-# Build a JSON POST object
-sub sanitize_for_serialization
-{
-#  my $data = shift;
-#  if (is_scalar($data) || null === $data) {
-#    $sanitized = $data;
-#  } else if ($data instanceof \DateTime) {
-#    $sanitized = $data->format(\DateTime::ISO8601);
-#  } else if (is_array($data)) {
-#    foreach ($data as $property => $value) {
-#      $data[$property] = $this->sanitizeForSerialization($value);
-#    }
-#    $sanitized = $data;
-#  } else if (is_object($data)) {
-#    $values = array();
-#    foreach (array_keys($data::$swaggerTypes) as $property) {
-#      $values[$data::$attributeMap[$property]] = $this->sanitizeForSerialization($data->$property);
-#    }
-#    $sanitized = $values;
-#  } else {
-#    $sanitized = (string)$data;
-#  }
-#
-#  return $sanitized;
-}
-
-
 #  Take value and turn it into a string suitable for inclusion in
 #  the path, by url-encoding.
 #  @param string $value a string which will be part of the path
 #  @return string the serialized object
 sub to_path_value {
-    my $value = shift;
-    return uri_escape(to_string($value));
+    my ($self, $value) = @_;
+    return uri_escape($self->to_string($value));
 }
 
 
@@ -171,11 +145,11 @@ sub to_path_value {
 # @param object $object an object to be serialized to a string
 # @return string the serialized object
 sub to_query_value {
-      my $object = shift;
+      my ($self, $object) = @_;
       if (is_array($object)) {
           return implode(',', $object);
       } else {
-          return toString($object);
+          return $self->to_string($object);
       }
 }
 
@@ -186,8 +160,8 @@ sub to_query_value {
 # @param string $value a string which will be part of the header
 # @return string the header string
 sub to_header_value {
-    my $value = shift;
-    return to_string($value);
+    my ($self, $value) = @_;
+    return $self->to_string($value);
 }
 
 # Take value and turn it into a string suitable for inclusion in
@@ -196,8 +170,8 @@ sub to_header_value {
 # @param string $value the value of the form parameter
 # @return string the form string
 sub to_form_value {
-    my $value = shift;
-    return to_string($value);
+    my ($self, $value) = @_;
+    return $self->to_string($value);
 }
 
 # Take value and turn it into a string suitable for inclusion in
@@ -206,7 +180,7 @@ sub to_form_value {
 # @param string $value the value of the parameter
 # @return string the header string
 sub to_string {
-  my $value = shift;
+  my ($self, $value) = @_;
   if (ref($value) eq "DateTime") { # datetime in ISO8601 format
     return $value->datetime();
   }
@@ -242,7 +216,7 @@ sub deserialize
     $_result = \@_values;
   } elsif ($class eq 'DateTime') {
     $_result = DateTime->from_epoch(epoch => str2time($data));
-  } elsif (grep /^$data$/, ('string', 'int', 'float', 'bool')) { #TODO revise the primitive type
+  } elsif (grep /^$class$/, ('string', 'int', 'float', 'bool', 'object')) { #TODO revise the primitive type
     $_result= $data;
   } else { # model
     my $_instance = use_module("WWW::{{invokerPackage}}::Object::$class")->new;
@@ -287,5 +261,44 @@ sub select_header_content_type
 
 }
 
+# Get API key (with prefix if set)
+# @param string key name
+# @return string API key with the prefix
+sub get_api_key_with_prefix
+{
+    my ($self, $api_key) = @_;
+    if ($WWW::{{invokerPackage}}::Configuration::api_key_prefix->{$api_key}) {
+      return $WWW::{{invokerPackage}}::Configuration::api_key_prefix->{$api_key}." ".$WWW::{{invokerPackage}}::Configuration::api_key->{$api_key};
+    } else {
+      return $WWW::{{invokerPackage}}::Configuration::api_key->{$api_key};
+    }
+}
+
+# update hearder and query param based on authentication setting
+#  
+# @param array $headerParams header parameters (by ref)
+# @param array $queryParams query parameters (by ref)
+# @param array $authSettings array of authentication scheme (e.g ['api_key'])
+sub update_params_for_auth {
+  my ($self, $header_params, $query_params, $auth_settings) = @_;
+
+  return if (!defined($auth_settings) || scalar(@$auth_settings) == 0);
+
+  # one endpoint can have more than 1 auth settings
+  foreach my $auth (@$auth_settings) {
+    # determine which one to use
+    if (!defined($auth)) {
+    }
+    {{#authMethods}}elsif ($auth eq '{{name}}') {
+      {{#isApiKey}}{{#isKeyInHeader}}$header_params->{'{{keyParamName}}'} = $self->get_api_key_with_prefix('{{keyParamName}}');{{/isKeyInHeader}}{{#isKeyInQuery}}$query_params->{'{{keyParamName}}'} = $self->get_api_key_with_prefix('{{keyParamName}}');{{/isKeyInQuery}}{{/isApiKey}}{{#isBasic}}$header_params->{'Authorization'} = 'Basic '.encode_base64($WWW::{{invokerPackage}}::Configuration::username.":".$WWW::{{invokerPackage}}::Configuration::password);{{/isBasic}}
+        {{#isOAuth}}# TODO support oauth{{/isOAuth}}
+    }
+    {{/authMethods}}
+    else {
+      # TODO show warning about security definition not found
+    }
+  }
+}
+
 
 1;

modules/swagger-codegen/src/main/resources/php/APIClient.mustache

@@ -17,7 +17,7 @@
 
 namespace {{invokerPackage}};
 
-class APIClient {
+class ApiClient {
 
   public static $PATCH = "PATCH";
   public static $POST = "POST";
@@ -173,7 +173,7 @@ class APIClient {
    * @param array $headerParams parameters to be place in request header
    * @return mixed
    */
-  public function callAPI($resourcePath, $method, $queryParams, $postData,
+  public function callApi($resourcePath, $method, $queryParams, $postData,
     $headerParams, $authSettings) {
 
     $headers = array();
@@ -228,35 +228,49 @@ class APIClient {
       curl_setopt($curl, CURLOPT_CUSTOMREQUEST, "DELETE");
       curl_setopt($curl, CURLOPT_POSTFIELDS, $postData);
     } else if ($method != self::$GET) {
-      throw new APIClientException('Method ' . $method . ' is not recognized.');
+      throw new ApiException('Method ' . $method . ' is not recognized.');
     }
     curl_setopt($curl, CURLOPT_URL, $url);
 
     // Set user agent
     curl_setopt($curl, CURLOPT_USERAGENT, $this->user_agent);
 
+    // debugging for curl
+    if (Configuration::$debug) {
+      error_log("[DEBUG] HTTP Request body  ~BEGIN~\n".print_r($postData, true)."\n~END~\n", 3, Configuration::$debug_file);
+
+      curl_setopt($curl, CURLOPT_VERBOSE, 1);
+      curl_setopt($curl, CURLOPT_STDERR, fopen(Configuration::$debug_file, 'a'));
+    } else {
+      curl_setopt($curl, CURLOPT_VERBOSE, 0);
+    }
+
+    // obtain the HTTP response headers
+    curl_setopt($curl, CURLOPT_HEADER, 1);
+
     // Make the request
     $response = curl_exec($curl);
+    $http_header_size = curl_getinfo($curl, CURLINFO_HEADER_SIZE);
+    $http_header = substr($response, 0, $http_header_size);
+    $http_body = substr($response, $http_header_size);
     $response_info = curl_getinfo($curl);
 
+    // debug HTTP response body
+    if (Configuration::$debug) {
+        error_log("[DEBUG] HTTP Response body ~BEGIN~\n".print_r($http_body, true)."\n~END~\n", 3, Configuration::$debug_file);
+    }
+
     // Handle the response
     if ($response_info['http_code'] == 0) {
-      throw new APIClientException("TIMEOUT: api call to " . $url .
-        " took more than 5s to return", 0, $response_info, $response);
+      throw new ApiException("API call to $url timed out: ".serialize($response_info), 0, null, null);
     } else if ($response_info['http_code'] >= 200 && $response_info['http_code'] <= 299 ) {
-      $data = json_decode($response);
+      $data = json_decode($http_body);
       if (json_last_error() > 0) { // if response is a string
-        $data = $response;
+        $data = $http_body;
       }
-    } else if ($response_info['http_code'] == 401) {
-      throw new APIClientException("Unauthorized API request to " . $url .
-          ": " . serialize($response), 0, $response_info, $response);
-    } else if ($response_info['http_code'] == 404) {
-      $data = null;
     } else {
-      throw new APIClientException("Can't connect to the api: " . $url .
-        " response code: " .
-        $response_info['http_code'], 0, $response_info, $response);
+      throw new ApiException("[".$response_info['http_code']."] Error connecting to the API ($url)",
+        $response_info['http_code'], $http_header, $http_body);
     }
     return $data;
   }

modules/swagger-codegen/src/main/resources/php/ApiException.mustache

@@ -19,20 +19,40 @@ namespace {{invokerPackage}};
 
 use \Exception;
 
-class APIClientException extends Exception {
-  protected $response, $response_info;
+class ApiException extends Exception {
 
-  public function __construct($message="", $code=0, $response_info=null, $response=null) {
+  /**
+   * The HTTP body of the server response.
+   */
+  protected $response_body;
+
+  /**
+   * The HTTP header of the server response.
+   */
+  protected $response_headers;
+
+  public function __construct($message="", $code=0, $responseHeaders=null, $responseBody=null) {
     parent::__construct($message, $code);
-    $this->response_info = $response_info;
-    $this->response = $response;
+    $this->response_headers = $responseHeaders;
+    $this->response_body = $responseBody;
   }
 
-  public function getResponse() {
-    return $this->response;
+  /**
+   * Get the HTTP response header
+   *
+   * @return string HTTP response header
+   */
+  public function getResponseHeaders() {
+    return $this->response_headers;
   }
 
-  public function getResponseInfo() {
-    return $this->response_info;
+  /**
+   * Get the HTTP response body
+   *
+   * @return string HTTP response body
+   */
+  public function getResponseBody() {
+    return $this->response_body;
   }
+
 }

modules/swagger-codegen/src/main/resources/php/api.mustache

@@ -28,7 +28,7 @@ class {{classname}} {
   function __construct($apiClient = null) {
     if (null === $apiClient) {
       if (Configuration::$apiClient === null) {
-        Configuration::$apiClient = new APIClient(); // create a new API client if not present
+        Configuration::$apiClient = new ApiClient(); // create a new API client if not present
         $this->apiClient = Configuration::$apiClient;
       }
       else
@@ -38,7 +38,7 @@ class {{classname}} {
     }
   }
 
-  private $apiClient; // instance of the APIClient
+  private $apiClient; // instance of the ApiClient
 
   /**
    * get the API client

modules/swagger-codegen/src/main/resources/php/configuration.mustache

@@ -19,27 +19,47 @@ namespace {{invokerPackage}};
 
 class Configuration {
 
-  public static $PATCH = "PATCH";
-  public static $POST = "POST";
-  public static $GET = "GET";
-  public static $PUT = "PUT";
-  public static $DELETE = "DELETE";
-
-  // authentication setting
+  /**
+   * Associate array to store API key(s)
+   */
   public static $apiKey = array();
+
+  /**
+   * Associate array to store API prefix (e.g. Bearer)
+   */
   public static $apiKeyPrefix = array();
+
+  /**
+   * Username for HTTP basic authentication
+   */
   public static $username = '';
+
+  /**
+   * Password for HTTP basic authentication
+   */
   public static $password = '';
 
-  // an instance of APIClient
+  /**
+   * The default instance of ApiClient
+   */
   public static $apiClient;
 
+  /**
+   * Debug switch (default set to false)
+   */
+  public static $debug = false;
+
+  /**
+   * Debug file location (log to STDOUT by default)
+   */
+  public static $debug_file = 'php://output';
+
   /*
-  *  manually initalize  API client
+   *  manually initalize  ApiClient
    */
   public static function init() {
     if (self::$apiClient === null)
-      self::$apiClient = new APIClient();
+      self::$apiClient = new ApiClient();
   }
 
 }

modules/swagger-codegen/src/main/resources/python/api.mustache

@@ -29,13 +29,16 @@ from six import iteritems
 
 from ..util import remove_none
 
-from ..swagger import ApiClient
+from .. import config
 
 {{#operations}}
 class {{classname}}(object):
 
-    def __init__(self, api_client):
+    def __init__(self, api_client=None):
+        if api_client:
             self.api_client = api_client
+        else:
+            self.api_client = config.api_client
     {{#operation}}
     def {{nickname}}(self, {{#allParams}}{{#required}}{{paramName}}, {{/required}}{{/allParams}}**kwargs):
         """
@@ -71,12 +74,12 @@ class {{classname}}(object):
         body_params = {{#bodyParam}}params.get('{{paramName}}'){{/bodyParam}}{{^bodyParam}}None{{/bodyParam}}
 
         # HTTP header `Accept`
-        header_params['Accept'] = ApiClient.select_header_accept([{{#produces}}'{{mediaType}}'{{#hasMore}}, {{/hasMore}}{{/produces}}])
+        header_params['Accept'] = self.api_client.select_header_accept([{{#produces}}'{{mediaType}}'{{#hasMore}}, {{/hasMore}}{{/produces}}])
         if not header_params['Accept']:
             del header_params['Accept']
 
         # HTTP header `Content-Type`
-        header_params['Content-Type'] = ApiClient.select_header_content_type([{{#consumes}}'{{mediaType}}'{{#hasMore}}, {{/hasMore}}{{/consumes}}])
+        header_params['Content-Type'] = self.api_client.select_header_content_type([{{#consumes}}'{{mediaType}}'{{#hasMore}}, {{/hasMore}}{{/consumes}}])
 
         response = self.api_client.call_api(resource_path, method, path_params, query_params, header_params,
                                             body=body_params, post_params=form_params, files=files,

modules/swagger-codegen/src/main/resources/python/config.mustache

@@ -0,0 +1,8 @@
+from __future__ import absolute_import
+
+from .swagger import ApiClient
+
+# Configuration variables
+
+api_client = ApiClient("{{basePath}}")
+

modules/swagger-codegen/src/main/resources/python/rest.mustache

@@ -2,6 +2,8 @@
 import sys
 import io
 import json
+import ssl
+import certifi
 
 # python 2 and python 3 compatibility library
 from six import iteritems
@@ -42,10 +44,30 @@ class RESTResponse(io.IOBase):
 class RESTClientObject(object):
 
     def __init__(self, pools_size=4):
+        # http pool manager
         self.pool_manager = urllib3.PoolManager(
             num_pools=pools_size
         )
 
+        # https pool manager
+        # certificates validated using Mozilla’s root certificates
+        self.ssl_pool_manager = urllib3.PoolManager(
+            num_pools=pools_size,
+            cert_reqs=ssl.CERT_REQUIRED,
+            ca_certs=certifi.where()
+        )
+
+    def agent(self, url):
+        """
+        Return proper pool manager for the http\https schemes.
+        """
+        url = urllib3.util.url.parse_url(url)
+        scheme = url.scheme
+        if scheme == 'https':
+            return self.ssl_pool_manager
+        else:
+            return self.pool_manager
+
     def request(self, method, url, query_params=None, headers=None,
                 body=None, post_params=None):
         """
@@ -56,7 +78,6 @@ class RESTClientObject(object):
         :param body: request json body, for `application/json`
         :param post_params: request post parameters, `application/x-www-form-urlencode`
                             and `multipart/form-data`
-        :param raw_response: if return the raw response
         """
         method = method.upper()
         assert method in ['GET', 'HEAD', 'DELETE', 'POST', 'PUT', 'PATCH']
@@ -75,11 +96,11 @@ class RESTClientObject(object):
             if query_params:
                 url += '?' + urlencode(query_params)
             if headers['Content-Type'] == 'application/json':
-                r = self.pool_manager.request(method, url,
+                r = self.agent(url).request(method, url,
                                             body=json.dumps(body),
                                             headers=headers)
             if headers['Content-Type'] == 'application/x-www-form-urlencoded':
-                r = self.pool_manager.request(method, url,
+                r = self.agent(url).request(method, url,
                                             fields=post_params,
                                             encode_multipart=False,
                                             headers=headers)
@@ -87,13 +108,13 @@ class RESTClientObject(object):
                 # must del headers['Content-Type'], or the correct Content-Type
                 # which generated by urllib3 will be overwritten.
                 del headers['Content-Type']
-                r = self.pool_manager.request(method, url,
+                r = self.agent(url).request(method, url,
                                             fields=post_params,
                                             encode_multipart=True,
                                             headers=headers)
         # For `GET`, `HEAD`, `DELETE`
         else:
-            r = self.pool_manager.request(method, url,
+            r = self.agent(url).request(method, url,
                                         fields=query_params,
                                         headers=headers)
         r = RESTResponse(r)

modules/swagger-codegen/src/main/resources/python/setup.mustache

@@ -12,7 +12,7 @@ from setuptools import setup, find_packages
 # Try reading the setuptools documentation:
 # http://pypi.python.org/pypi/setuptools
 
-REQUIRES = ["urllib3 >= 1.10", "six >= 1.9"]
+REQUIRES = ["urllib3 >= 1.10", "six >= 1.9", "certifi"]
 
 setup(
     name="{{module}}",

modules/swagger-codegen/src/main/resources/python/swagger.mustache

@@ -66,28 +66,28 @@ class ApiClient(object):
     if self.cookie:
       headers['Cookie'] = self.cookie
     if headers:
-      headers = ApiClient.sanitize_for_serialization(headers)
+      headers = self.sanitize_for_serialization(headers)
 
     # path parameters
     if path_params:
-      path_params = ApiClient.sanitize_for_serialization(path_params)
+      path_params = self.sanitize_for_serialization(path_params)
       for k, v in iteritems(path_params):
         replacement = quote(str(self.to_path_value(v)))
         resource_path = resource_path.replace('{' + k + '}', replacement)
 
     # query parameters
     if query_params:
-      query_params = ApiClient.sanitize_for_serialization(query_params)
+      query_params = self.sanitize_for_serialization(query_params)
       query_params = {k: self.to_path_value(v) for k, v in iteritems(query_params)}
 
     # post parameters
     if post_params:
       post_params = self.prepare_post_parameters(post_params, files)
-      post_params = ApiClient.sanitize_for_serialization(post_params)
+      post_params = self.sanitize_for_serialization(post_params)
 
     # body
     if body:
-      body = ApiClient.sanitize_for_serialization(body)
+      body = self.sanitize_for_serialization(body)
 
     # request url
     url = self.host + resource_path
@@ -115,8 +115,7 @@ class ApiClient(object):
     else:
       return str(obj)
 
-  @staticmethod
-  def sanitize_for_serialization(obj):
+  def sanitize_for_serialization(self, obj):
     """
     Sanitize an object for Request.
 
@@ -132,7 +131,7 @@ class ApiClient(object):
     elif isinstance(obj, (str, int, float, bool, tuple)):
       return obj
     elif isinstance(obj, list):
-      return [ApiClient.sanitize_for_serialization(sub_obj) for sub_obj in obj]
+      return [self.sanitize_for_serialization(sub_obj) for sub_obj in obj]
     elif isinstance(obj, (datetime.datetime, datetime.date)):
       return obj.isoformat()
     else:
@@ -145,7 +144,7 @@ class ApiClient(object):
         obj_dict = {obj.attribute_map[key]: val
                     for key, val in iteritems(obj.__dict__)
                     if key != 'swagger_types' and key != 'attribute_map' and val is not None}
-      return {key: ApiClient.sanitize_for_serialization(val)
+      return {key: self.sanitize_for_serialization(val)
               for key, val in iteritems(obj_dict)}
 
   def deserialize(self, obj, obj_class):
@@ -253,8 +252,7 @@ class ApiClient(object):
 
     return params
 
-  @staticmethod
-  def select_header_accept(accepts):
+  def select_header_accept(self, accepts):
     """
     Return `Accept` based on an array of accepts provided
     """
@@ -268,8 +266,7 @@ class ApiClient(object):
     else:
       return ', '.join(accepts)
 
-  @staticmethod
-  def select_header_content_type(content_types):
+  def select_header_content_type(self, content_types):
     """
     Return `Content-Type` baseed on an array of content_types provided
     """

modules/swagger-codegen/src/main/resources/retrofit/api.mustache

@@ -0,0 +1,29 @@
+package {{package}};
+
+import {{modelPackage}}.*;
+
+import retrofit.http.*;
+import retrofit.mime.*;
+import java.util.*;
+
+{{#imports}}import {{import}};
+{{/imports}}
+
+{{#operations}}
+public interface {{classname}} {
+  {{#operation}}
+  /**
+   * {{summary}}
+   * {{notes}}
+{{#allParams}}   * @param {{paramName}} {{description}}
+{{/allParams}}   * @return {{#returnType}}{{{returnType}}}{{/returnType}}{{^returnType}}void{{/returnType}}
+   */
+  {{#formParams}}{{#-first}}
+  {{#isMultipart}}@Multipart{{/isMultipart}}{{^isMultipart}}@FormUrlEncoded{{/isMultipart}}{{/-first}}{{/formParams}}
+  @{{httpMethod}}("{{path}}")  
+  {{#returnType}}{{{returnType}}}{{/returnType}}{{^returnType}}Object{{/returnType}} {{nickname}}({{^allParams}});{{/allParams}}
+    {{#allParams}}{{>queryParams}}{{>pathParams}}{{>headerParams}}{{>bodyParams}}{{>formParams}}{{#hasMore}},{{/hasMore}}{{^hasMore}}
+  );{{/hasMore}}{{/allParams}}  
+  {{/operation}}
+}
+{{/operations}}

modules/swagger-codegen/src/main/resources/retrofit/bodyParams.mustache

@@ -0,0 +1 @@
+{{#isBodyParam}}@Body {{{dataType}}} {{paramName}}{{/isBodyParam}}

modules/swagger-codegen/src/main/resources/retrofit/formParams.mustache

@@ -0,0 +1 @@
+{{#isFormParam}}{{#notFile}}{{#isMultipart}}@Part{{/isMultipart}}{{^isMultipart}}@Field{{/isMultipart}}("{{paramName}}") {{{dataType}}} {{paramName}}{{/notFile}}{{#isFile}}{{#isMultipart}}@Part{{/isMultipart}}{{^isMultipart}}@Field{{/isMultipart}}("{{paramName}}") TypedFile {{paramName}}{{/isFile}}{{/isFormParam}}

modules/swagger-codegen/src/main/resources/retrofit/headerParams.mustache

@@ -0,0 +1 @@
+{{#isHeaderParam}}@Header("{{baseName}}") {{{dataType}}} {{paramName}}{{/isHeaderParam}}

modules/swagger-codegen/src/main/resources/retrofit/model.mustache

@@ -0,0 +1,50 @@
+package {{package}};
+
+{{#imports}}import {{import}};
+{{/imports}}
+
+import com.wordnik.swagger.annotations.*;
+import com.google.gson.annotations.SerializedName;
+{{#models}}
+
+{{#model}}{{#description}}
+/**
+ * {{description}}
+ **/{{/description}}
+@ApiModel(description = "{{{description}}}")
+public class {{classname}} {{#parent}}extends {{{parent}}}{{/parent}} {
+    {{#vars}}{{#isEnum}}
+    public enum {{datatypeWithEnum}} {
+        {{#allowableValues}}{{#values}} {{.}}, {{/values}}{{/allowableValues}}
+    };{{/isEnum}}
+
+    /**{{#description}}
+     * {{{description}}}{{/description}}{{#minimum}}
+     * minimum: {{minimum}}{{/minimum}}{{#maximum}}
+     * maximum: {{maximum}}{{/maximum}}
+     **/
+    @ApiModelProperty({{#required}}required = {{required}}, {{/required}}value = "{{{description}}}")  
+    @SerializedName("{{baseName}}"){{#isEnum}}    
+    private {{{datatypeWithEnum}}} {{name}} = {{{defaultValue}}};{{/isEnum}}{{^isEnum}}
+    private {{{datatype}}} {{name}} = {{{defaultValue}}};{{/isEnum}}{{/vars}}
+
+    {{#vars}}    
+    public {{{datatypeWithEnum}}} {{getter}}() {
+        return {{name}};
+    }
+    public void {{setter}}({{{datatypeWithEnum}}} {{name}}) {
+        this.{{name}} = {{name}};
+    }
+    {{/vars}}
+    @Override
+    public String toString()  {
+        StringBuilder sb = new StringBuilder();
+        sb.append("class {{classname}} {\n");
+        {{#parent}}sb.append("  " + super.toString()).append("\n");{{/parent}}
+        {{#vars}}sb.append("  {{name}}: ").append({{name}}).append("\n");
+        {{/vars}}sb.append("}\n");
+        return sb.toString();
+    }
+}
+{{/model}}
+{{/models}}

modules/swagger-codegen/src/main/resources/retrofit/pathParams.mustache

@@ -0,0 +1 @@
+{{#isPathParam}}@Path("{{baseName}}") {{{dataType}}} {{paramName}}{{/isPathParam}}

modules/swagger-codegen/src/main/resources/retrofit/pom.mustache

@@ -0,0 +1,143 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>{{groupId}}</groupId>
+  <artifactId>{{artifactId}}</artifactId>
+  <packaging>jar</packaging>
+  <name>{{artifactId}}</name>
+  <version>{{artifactVersion}}</version>
+  <scm>
+    <connection>scm:git:git@github.com:wordnik/swagger-mustache.git</connection>
+    <developerConnection>scm:git:git@github.com:wordnik/swagger-codegen.git</developerConnection>
+    <url>https://github.com/wordnik/swagger-codegen</url>
+  </scm>
+  <prerequisites>
+    <maven>2.2.0</maven>
+  </prerequisites>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-surefire-plugin</artifactId>
+        <version>2.12</version>
+        <configuration>
+          <systemProperties>
+            <property>
+              <name>loggerPath</name>
+              <value>conf/log4j.properties</value>
+            </property>
+          </systemProperties>
+          <argLine>-Xms512m -Xmx1500m</argLine>
+          <parallel>methods</parallel>
+          <forkMode>pertest</forkMode>
+        </configuration>
+      </plugin>
+      <plugin>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <executions>
+          <execution>
+            <phase>package</phase>
+            <goals>
+              <goal>copy-dependencies</goal>
+            </goals>
+            <configuration>
+              <outputDirectory>${project.build.directory}/lib</outputDirectory>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+
+      <!-- attach test jar -->
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-jar-plugin</artifactId>
+        <version>2.2</version>
+        <executions>
+          <execution>
+            <goals>
+              <goal>jar</goal>
+              <goal>test-jar</goal>
+            </goals>
+          </execution>
+        </executions>
+        <configuration>
+        </configuration>
+      </plugin>
+
+      <plugin>
+        <groupId>org.codehaus.mojo</groupId>
+        <artifactId>build-helper-maven-plugin</artifactId>
+        <executions>
+          <execution>
+            <id>add_sources</id>
+            <phase>generate-sources</phase>
+            <goals>
+              <goal>add-source</goal>
+            </goals>
+            <configuration>
+              <sources>
+                <source>src/main/java</source>
+              </sources>
+            </configuration>
+          </execution>
+          <execution>
+            <id>add_test_sources</id>
+            <phase>generate-test-sources</phase>
+            <goals>
+              <goal>add-test-source</goal>
+            </goals>
+            <configuration>
+              <sources>
+                <source>src/test/java</source>
+              </sources>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>2.3.2</version>
+        <configuration>
+          <source>1.6</source>
+          <target>1.6</target>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+  <dependencies>
+    <dependency>
+      <groupId>com.wordnik</groupId>
+      <artifactId>swagger-annotations</artifactId>
+      <version>${swagger-annotations-version}</version>
+    </dependency>
+    <dependency>
+      <groupId>com.google.code.gson</groupId>
+      <artifactId>gson</artifactId>
+      <version>${gson-version}</version>
+      <scope>compile</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.squareup.retrofit</groupId>
+      <artifactId>retrofit</artifactId>
+      <version>${retrofit-version}</version>
+      <scope>compile</scope>
+    </dependency>
+
+    <!-- test dependencies -->
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>${junit-version}</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <properties>
+    <swagger-annotations-version>1.5.3-M1</swagger-annotations-version>
+    <gson-version>2.3.1</gson-version>
+    <retrofit-version>1.9.0</retrofit-version>
+    <maven-plugin-version>1.0.0</maven-plugin-version>
+    <junit-version>4.12</junit-version>
+  </properties>
+</project>

modules/swagger-codegen/src/main/resources/retrofit/queryParams.mustache

@@ -0,0 +1 @@
+{{#isQueryParam}}@Query("{{baseName}}") {{{dataType}}} {{paramName}}{{/isQueryParam}}

modules/swagger-codegen/src/main/resources/retrofit/service.mustache

@@ -0,0 +1,23 @@
+package {{invokerPackage}};
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import retrofit.RestAdapter;
+import retrofit.converter.GsonConverter;
+
+public class ServiceGenerator {
+  // No need to instantiate this class.
+  private ServiceGenerator() { }
+
+  public static <S> S createService(Class<S> serviceClass) {
+    Gson gson = new GsonBuilder()
+        .setDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ")
+        .create();
+    RestAdapter adapter = new RestAdapter.Builder()
+        .setEndpoint("{{basePath}}")
+        .setConverter(new GsonConverter(gson))
+        .build();
+
+    return adapter.create(serviceClass);
+  }
+}

modules/swagger-codegen/src/main/resources/ruby/api.mustache

@@ -50,8 +50,9 @@ module {{moduleName}}
       {{/bodyParam}}{{#bodyParam}}post_body = Swagger::Request.object_to_http_body({{#required}}{{{paramName}}}{{/required}}{{^required}}opts[:'{{{paramName}}}']{{/required}})
       {{/bodyParam}}
 
-      {{#returnType}}response = Swagger::Request.new(:{{httpMethod}}, path, {:params => query_params, :headers => header_params, :form_params => form_params, :body => post_body}).make.body
-      {{#returnContainer}}response.map {|response| {{/returnContainer}}obj = {{returnBaseType}}.new() and obj.build_from_hash(response){{#returnContainer}} }{{/returnContainer}}{{/returnType}}{{^returnType}}Swagger::Request.new(:{{httpMethod}}, path, {:params => query_params,:headers => header_params, :form_params => form_params, :body => post_body}).make
+      auth_names = [{{#authMethods}}'{{name}}'{{#hasMore}}, {{/hasMore}}{{/authMethods}}]
+      {{#returnType}}response = Swagger::Request.new(:{{httpMethod}}, path, {:params => query_params, :headers => header_params, :form_params => form_params, :body => post_body, :auth_names => auth_names}).make.body
+      {{#returnContainer}}response.map {|response| {{/returnContainer}}obj = {{returnBaseType}}.new() and obj.build_from_hash(response){{#returnContainer}} }{{/returnContainer}}{{/returnType}}{{^returnType}}Swagger::Request.new(:{{httpMethod}}, path, {:params => query_params,:headers => header_params, :form_params => form_params, :body => post_body, :auth_names => auth_names}).make
       nil{{/returnType}}
     end
 {{/operation}}

modules/swagger-codegen/src/main/resources/ruby/swagger.mustache

@@ -16,9 +16,9 @@ module {{moduleName}}
       #
       # @example
       #   Swagger.configure do |config|
-      #     config.api_key = '1234567890abcdef'     # required
-      #     config.username = 'wordlover'           # optional, but needed for user-related functions
-      #     config.password = 'i<3words'            # optional, but needed for user-related functions
+      #     config.api_key['api_key'] = '1234567890abcdef'     # api key authentication
+      #     config.username = 'wordlover'           # http basic authentication
+      #     config.password = 'i<3words'            # http basic authentication
       #     config.format = 'json'                  # optional, defaults to 'json'
       #   end
       #

modules/swagger-codegen/src/main/resources/ruby/swagger/configuration.mustache

@@ -1,7 +1,7 @@
 module {{moduleName}}
   module Swagger
     class Configuration
-      attr_accessor :format, :api_key, :username, :password, :auth_token, :scheme, :host, :base_path, :user_agent, :logger, :inject_format, :force_ending_format, :camelize_params, :user_agent
+      attr_accessor :format, :api_key, :api_key_prefix, :username, :password, :auth_token, :scheme, :host, :base_path, :user_agent, :logger, :inject_format, :force_ending_format, :camelize_params, :user_agent, :verify_ssl
 
       # Defaults go in here..
       def initialize
@@ -13,6 +13,16 @@ module {{moduleName}}
         @inject_format = false
         @force_ending_format = false
         @camelize_params = true
+
+        # keys for API key authentication (param-name => api-key)
+        @api_key = {}
+        # api-key prefix for API key authentication, e.g. "Bearer" (param-name => api-key-prefix)
+        @api_key_prefix = {}
+
+        # whether to verify SSL certificate, default to true
+        # Note: do NOT set it to false in production code, otherwise you would
+        #   face multiple types of cryptographic attacks
+        @verify_ssl = true
       end
     end
   end

modules/swagger-codegen/src/main/resources/ruby/swagger/request.mustache

@@ -5,7 +5,7 @@ module {{moduleName}}
       require 'addressable/uri'
       require 'typhoeus'
 
-      attr_accessor :host, :path, :format, :params, :body, :http_method, :headers, :form_params
+      attr_accessor :host, :path, :format, :params, :body, :http_method, :headers, :form_params, :auth_names
 
       # All requests must have an HTTP method and a path
       # Optionals parameters are :params, :headers, :body, :format, :host
@@ -16,21 +16,9 @@ module {{moduleName}}
         # Set default headers
         default_headers = {
           'Content-Type' => "application/#{attributes[:format].downcase}",
-          :api_key => Swagger.configuration.api_key,
           'User-Agent' => Swagger.configuration.user_agent
         }
 
-        # api_key from headers hash trumps the default, even if its value is blank
-        if attributes[:headers].present? && attributes[:headers].has_key?(:api_key)
-          default_headers.delete(:api_key)
-        end
-
-        # api_key from params hash trumps all others (headers and default_headers)
-        if attributes[:params].present? && attributes[:params].has_key?(:api_key)
-          default_headers.delete(:api_key)
-          attributes[:headers].delete(:api_key) if attributes[:headers].present?
-        end
-
         # Merge argument headers into defaults
         attributes[:headers] = default_headers.merge(attributes[:headers] || {})
 
@@ -44,6 +32,33 @@ module {{moduleName}}
         attributes.each do |name, value|
           send("#{name.to_s.underscore.to_sym}=", value)
         end
+
+        update_params_for_auth!
+      end
+
+      # Update hearder and query params based on authentication settings.
+      def update_params_for_auth!
+        (@auth_names || []).each do |auth_name|
+          case auth_name
+          {{#authMethods}}when '{{name}}'
+            {{#isApiKey}}{{#isKeyInHeader}}@headers ||= {}
+            @headers['{{keyParamName}}'] = get_api_key_with_prefix('{{keyParamName}}'){{/isKeyInHeader}}{{#isKeyInQuery}}@params ||= {}
+            @params['{{keyParamName}}'] = get_api_key_with_prefix('{{keyParamName}}'){{/isKeyInQuery}}{{/isApiKey}}{{#isBasic}}@headers ||= {}
+            http_auth_header = 'Basic ' + ["#{Swagger.configuration.username}:#{Swagger.configuration.password}"].pack('m').delete("\r\n")
+            @headers['Authorization'] = http_auth_header{{/isBasic}}{{#isOAuth}}# TODO: support oauth{{/isOAuth}}
+          {{/authMethods}}
+          end
+        end
+      end
+
+      # Get API key (with prefix if set).
+      # @param [String] param_name the parameter name of API key auth
+      def get_api_key_with_prefix(param_name)
+        if Swagger.configuration.api_key_prefix[param_name].present?
+          "#{Swagger.configuration.api_key_prefix[param_name]} #{Swagger.configuration.api_key[param_name]}"
+        else
+          Swagger.configuration.api_key[param_name]
+        end
       end
 
       # Construct a base URL
@@ -58,9 +73,6 @@ module {{moduleName}}
         # Drop trailing question mark, if present
         u.sub! /\?$/, ''
 
-        # Obfuscate API key?
-        u.sub! /api\_key=\w+/, 'api_key=YOUR_API_KEY' if options[:obfuscated]
-
         u
       end
 
@@ -108,14 +120,16 @@ module {{moduleName}}
       # For form parameters, remove empty value
       def outgoing_body
         # http form
-        if @body.nil? && @form_params && !@form_params.empty?
+        if headers['Content-Type'] == 'application/x-www-form-urlencoded'
           data = form_params.dup
           data.each do |key, value|
             data[key] = value.to_s if value && !value.is_a?(File) # remove emtpy form parameter
           end
           data
-        else # http body is JSON
+        elsif @body # http body is JSON
           @body.is_a?(String) ? @body : @body.to_json
+        else
+          nil
         end
       end
 
@@ -129,7 +143,7 @@ module {{moduleName}}
           next if self.path.include? "{#{key}}"                                   # skip path params
           next if value.blank? && value.class != FalseClass                       # skip empties
           if Swagger.configuration.camelize_params
-            key = key.to_s.camelize(:lower).to_sym unless key.to_sym == :api_key    # api_key is not a camelCased param
+            key = key.to_s.camelize(:lower).to_sym
           end
           query_values[key] = value.to_s
         end
@@ -148,39 +162,40 @@ module {{moduleName}}
         #TODO use configuration setting to determine if debugging
         #logger = Logger.new STDOUT
         #logger.debug self.url
+
+        request_options = {
+          :ssl_verifypeer => Swagger.configuration.verify_ssl,
+          :headers => self.headers.stringify_keys
+        }
         response = case self.http_method.to_sym
         when :get,:GET
           Typhoeus::Request.get(
             self.url,
-            :headers => self.headers.stringify_keys,
+            request_options
           )
 
         when :post,:POST
           Typhoeus::Request.post(
             self.url,
-            :body => self.outgoing_body,
-            :headers => self.headers.stringify_keys,
+            request_options.merge(:body => self.outgoing_body)
           )
 
         when :patch,:PATCH
           Typhoeus::Request.patch(
             self.url,
-            :body => self.outgoing_body,
-            :headers => self.headers.stringify_keys,
+            request_options.merge(:body => self.outgoing_body)
           )
 
         when :put,:PUT
           Typhoeus::Request.put(
             self.url,
-            :body => self.outgoing_body,
-            :headers => self.headers.stringify_keys,
+            request_options.merge(:body => self.outgoing_body)
           )
 
         when :delete,:DELETE
           Typhoeus::Request.delete(
             self.url,
-            :body => self.outgoing_body,
-            :headers => self.headers.stringify_keys,
+            request_options.merge(:body => self.outgoing_body)
           )
         end
         Response.new(response)

pom.xml

@@ -350,6 +350,18 @@
         <module>samples/client/petstore/ruby</module>
       </modules>
     </profile>
+    <profile>
+      <id>retrofit-client</id>
+      <activation>
+        <property>
+          <name>env</name>
+          <value>java</value>
+        </property>
+      </activation>
+      <modules>
+        <module>samples/client/petstore/retrofit</module>
+      </modules>
+    </profile>
     <profile>
       <id>spring-mvc</id>
       <activation>

samples/client/petstore/android-java/src/main/java/AndroidManifest.xml

@@ -0,0 +1,3 @@
+<manifest package="io.swagger.client">
+    <application />
+</manifest>

samples/client/petstore/csharp/compile.bat

@@ -1,2 +1,3 @@
 SET CSCPATH=%SYSTEMROOT%\Microsoft.NET\Framework\v4.0.30319
-%CSCPATH%\csc /reference:bin/Newtonsoft.Json.dll /target:library /out:bin/IO.Swagger.Client.dll /recurse:src\*.cs /doc:bin/IO.Swagger.Client.xml
+%CSCPATH%\csc /reference:bin/Newtonsoft.Json.dll;bin/RestSharp.dll /target:library /out:bin/IO.Swagger.Client.dll /recurse:src\*.cs /doc:bin/IO.Swagger.Client.xml
+

samples/client/petstore/csharp/src/main/csharp/io/swagger/Api/PetApi.cs

@@ -6,33 +6,54 @@ using IO.Swagger.Model;
 
 namespace IO.Swagger.Api {
   
+  /// <summary>
+  /// Represents a collection of functions to interact with the API endpoints
+  /// </summary>
   public class PetApi {
-    string basePath;
-    protected RestClient restClient;
-
-    public PetApi(String basePath = "http://petstore.swagger.io/v2")
-    {
-      this.basePath = basePath;
-      this.restClient = new RestClient(basePath);
-    }
-
     /// <summary>
-    /// Sets the endpoint base url for the services being accessed
+    /// Initializes a new instance of the <see cref="PetApi"/> class.
     /// </summary>
-    /// <param name="basePath"> Base URL
+    /// <param name="apiClient"> an instance of ApiClient (optional)
     /// <returns></returns>
-    public void SetBasePath(string basePath) {
-      this.basePath = basePath;
+    public PetApi(ApiClient apiClient = null) {
+      if (apiClient == null) { // use the default one in Configuration
+        this.apiClient = Configuration.apiClient; 
+      } else {
+        this.apiClient = apiClient;
+      }
     }
 
     /// <summary>
-    /// Gets the endpoint base url for the services being accessed
-    /// <returns>Base URL</returns>
+    /// Initializes a new instance of the <see cref="PetApi"/> class.
     /// </summary>
-    public String GetBasePath() {
-      return this.basePath;
+    /// <returns></returns>
+    public PetApi(String basePath)
+    {
+      this.apiClient = new ApiClient(basePath);
     }
 
+    /// <summary>
+    /// Sets the base path of the API client.
+    /// </summary>
+    /// <value>The base path</value>
+    public void SetBasePath(String basePath) {
+      this.apiClient.basePath = basePath;
+    }
+
+    /// <summary>
+    /// Gets the base path of the API client.
+    /// </summary>
+    /// <value>The base path</value>
+    public String GetBasePath(String basePath) {
+      return this.apiClient.basePath;
+    }
+
+    /// <summary>
+    /// Gets or sets the API client.
+    /// </summary>
+    /// <value>The API client</value>
+    public ApiClient apiClient {get; set;}
+
 
     
     /// <summary>
@@ -42,26 +63,30 @@ namespace IO.Swagger.Api {
     /// <returns></returns>
     public void UpdatePet (Pet Body) {
 
-      var _request = new RestRequest("/pet", Method.PUT);
       
 
+      var path = "/pet";
+      path = path.Replace("{format}", "json");
       
-      // add default header, if any
-      foreach(KeyValuePair<string, string> defaultHeader in ApiInvoker.GetDefaultHeader())
-      {
-        _request.AddHeader(defaultHeader.Key, defaultHeader.Value);
-      }
 
-      _request.AddUrlSegment("format", "json"); // set format to json by default
+      var queryParams = new Dictionary<String, String>();
+      var headerParams = new Dictionary<String, String>();
+      var formParams = new Dictionary<String, String>();
+      var fileParams = new Dictionary<String, String>();
+      String postBody = null;
 
       
       
       
-      _request.AddParameter("application/json", ApiInvoker.Serialize(Body), ParameterType.RequestBody); // http body (model) parameter
+      postBody = apiClient.Serialize(Body); // http body (model) parameter
       
 
+      // authentication setting, if any
+      String[] authSettings = new String[] { "petstore_auth" };
+
       // make the HTTP request
-      IRestResponse response = restClient.Execute(_request);
+      IRestResponse response = (IRestResponse) apiClient.CallApi(path, Method.PUT, queryParams, postBody, headerParams, formParams, fileParams, authSettings);
+
       if (((int)response.StatusCode) >= 400) {
         throw new ApiException ((int)response.StatusCode, "Error calling UpdatePet: " + response.Content);
       }
@@ -69,7 +94,6 @@ namespace IO.Swagger.Api {
       return;
     }
     
-    
     /// <summary>
     /// Add a new pet to the store 
     /// </summary>
@@ -77,26 +101,30 @@ namespace IO.Swagger.Api {
     /// <returns></returns>
     public void AddPet (Pet Body) {
 
-      var _request = new RestRequest("/pet", Method.POST);
       
 
+      var path = "/pet";
+      path = path.Replace("{format}", "json");
       
-      // add default header, if any
-      foreach(KeyValuePair<string, string> defaultHeader in ApiInvoker.GetDefaultHeader())
-      {
-        _request.AddHeader(defaultHeader.Key, defaultHeader.Value);
-      }
 
-      _request.AddUrlSegment("format", "json"); // set format to json by default
+      var queryParams = new Dictionary<String, String>();
+      var headerParams = new Dictionary<String, String>();
+      var formParams = new Dictionary<String, String>();
+      var fileParams = new Dictionary<String, String>();
+      String postBody = null;
 
       
       
       
-      _request.AddParameter("application/json", ApiInvoker.Serialize(Body), ParameterType.RequestBody); // http body (model) parameter
+      postBody = apiClient.Serialize(Body); // http body (model) parameter
       
 
+      // authentication setting, if any
+      String[] authSettings = new String[] { "petstore_auth" };
+
       // make the HTTP request
-      IRestResponse response = restClient.Execute(_request);
+      IRestResponse response = (IRestResponse) apiClient.CallApi(path, Method.POST, queryParams, postBody, headerParams, formParams, fileParams, authSettings);
+
       if (((int)response.StatusCode) >= 400) {
         throw new ApiException ((int)response.StatusCode, "Error calling AddPet: " + response.Content);
       }
@@ -104,7 +132,6 @@ namespace IO.Swagger.Api {
       return;
     }
     
-    
     /// <summary>
     /// Finds Pets by status Multiple status values can be provided with comma seperated strings
     /// </summary>
@@ -112,33 +139,36 @@ namespace IO.Swagger.Api {
     /// <returns>List<Pet></returns>
     public List<Pet> FindPetsByStatus (List<string> Status) {
 
-      var _request = new RestRequest("/pet/findByStatus", Method.GET);
       
 
+      var path = "/pet/findByStatus";
+      path = path.Replace("{format}", "json");
       
-      // add default header, if any
-      foreach(KeyValuePair<string, string> defaultHeader in ApiInvoker.GetDefaultHeader())
-      {
-        _request.AddHeader(defaultHeader.Key, defaultHeader.Value);
-      }
 
-      _request.AddUrlSegment("format", "json"); // set format to json by default
+      var queryParams = new Dictionary<String, String>();
+      var headerParams = new Dictionary<String, String>();
+      var formParams = new Dictionary<String, String>();
+      var fileParams = new Dictionary<String, String>();
+      String postBody = null;
 
-       if (Status != null) _request.AddParameter("status", ApiInvoker.ParameterToString(Status)); // query parameter
+       if (Status != null) queryParams.Add("status", apiClient.ParameterToString(Status)); // query parameter
       
       
       
       
 
+      // authentication setting, if any
+      String[] authSettings = new String[] { "petstore_auth" };
+
       // make the HTTP request
-      IRestResponse response = restClient.Execute(_request);
+      IRestResponse response = (IRestResponse) apiClient.CallApi(path, Method.GET, queryParams, postBody, headerParams, formParams, fileParams, authSettings);
+
       if (((int)response.StatusCode) >= 400) {
         throw new ApiException ((int)response.StatusCode, "Error calling FindPetsByStatus: " + response.Content);
       }
-      return (List<Pet>) ApiInvoker.Deserialize(response.Content, typeof(List<Pet>));
+      return (List<Pet>) apiClient.Deserialize(response.Content, typeof(List<Pet>));
     }
     
-    
     /// <summary>
     /// Finds Pets by tags Muliple tags can be provided with comma seperated strings. Use tag1, tag2, tag3 for testing.
     /// </summary>
@@ -146,33 +176,36 @@ namespace IO.Swagger.Api {
     /// <returns>List<Pet></returns>
     public List<Pet> FindPetsByTags (List<string> Tags) {
 
-      var _request = new RestRequest("/pet/findByTags", Method.GET);
       
 
+      var path = "/pet/findByTags";
+      path = path.Replace("{format}", "json");
       
-      // add default header, if any
-      foreach(KeyValuePair<string, string> defaultHeader in ApiInvoker.GetDefaultHeader())
-      {
-        _request.AddHeader(defaultHeader.Key, defaultHeader.Value);
-      }
 
-      _request.AddUrlSegment("format", "json"); // set format to json by default
+      var queryParams = new Dictionary<String, String>();
+      var headerParams = new Dictionary<String, String>();
+      var formParams = new Dictionary<String, String>();
+      var fileParams = new Dictionary<String, String>();
+      String postBody = null;
 
-       if (Tags != null) _request.AddParameter("tags", ApiInvoker.ParameterToString(Tags)); // query parameter
+       if (Tags != null) queryParams.Add("tags", apiClient.ParameterToString(Tags)); // query parameter
       
       
       
       
 
+      // authentication setting, if any
+      String[] authSettings = new String[] { "petstore_auth" };
+
       // make the HTTP request
-      IRestResponse response = restClient.Execute(_request);
+      IRestResponse response = (IRestResponse) apiClient.CallApi(path, Method.GET, queryParams, postBody, headerParams, formParams, fileParams, authSettings);
+
       if (((int)response.StatusCode) >= 400) {
         throw new ApiException ((int)response.StatusCode, "Error calling FindPetsByTags: " + response.Content);
       }
-      return (List<Pet>) ApiInvoker.Deserialize(response.Content, typeof(List<Pet>));
+      return (List<Pet>) apiClient.Deserialize(response.Content, typeof(List<Pet>));
     }
     
-    
     /// <summary>
     /// Find pet by ID Returns a pet when ID &lt; 10.  ID &gt; 10 or nonintegers will simulate API error conditions
     /// </summary>
@@ -180,36 +213,39 @@ namespace IO.Swagger.Api {
     /// <returns>Pet</returns>
     public Pet GetPetById (long? PetId) {
 
-      var _request = new RestRequest("/pet/{petId}", Method.GET);
-
       
       // verify the required parameter 'PetId' is set
       if (PetId == null) throw new ApiException(400, "Missing required parameter 'PetId' when calling GetPetById");
       
 
-      // add default header, if any
-      foreach(KeyValuePair<string, string> defaultHeader in ApiInvoker.GetDefaultHeader())
-      {
-        _request.AddHeader(defaultHeader.Key, defaultHeader.Value);
-      }
+      var path = "/pet/{petId}";
+      path = path.Replace("{format}", "json");
+      path = path.Replace("{" + "petId" + "}", apiClient.ParameterToString(PetId));
       
-      _request.AddUrlSegment("format", "json"); // set format to json by default
-      _request.AddUrlSegment("petId", ApiInvoker.ParameterToString(PetId)); // path (url segment) parameter
+
+      var queryParams = new Dictionary<String, String>();
+      var headerParams = new Dictionary<String, String>();
+      var formParams = new Dictionary<String, String>();
+      var fileParams = new Dictionary<String, String>();
+      String postBody = null;
 
       
       
       
       
 
+      // authentication setting, if any
+      String[] authSettings = new String[] { "api_key", "petstore_auth" };
+
       // make the HTTP request
-      IRestResponse response = restClient.Execute(_request);
+      IRestResponse response = (IRestResponse) apiClient.CallApi(path, Method.GET, queryParams, postBody, headerParams, formParams, fileParams, authSettings);
+
       if (((int)response.StatusCode) >= 400) {
         throw new ApiException ((int)response.StatusCode, "Error calling GetPetById: " + response.Content);
       }
-      return (Pet) ApiInvoker.Deserialize(response.Content, typeof(Pet));
+      return (Pet) apiClient.Deserialize(response.Content, typeof(Pet));
     }
     
-    
     /// <summary>
     /// Updates a pet in the store with form data 
     /// </summary>
@@ -219,31 +255,35 @@ namespace IO.Swagger.Api {
     /// <returns></returns>
     public void UpdatePetWithForm (string PetId, string Name, string Status) {
 
-      var _request = new RestRequest("/pet/{petId}", Method.POST);
-
       
       // verify the required parameter 'PetId' is set
       if (PetId == null) throw new ApiException(400, "Missing required parameter 'PetId' when calling UpdatePetWithForm");
       
 
-      // add default header, if any
-      foreach(KeyValuePair<string, string> defaultHeader in ApiInvoker.GetDefaultHeader())
-      {
-        _request.AddHeader(defaultHeader.Key, defaultHeader.Value);
-      }
+      var path = "/pet/{petId}";
+      path = path.Replace("{format}", "json");
+      path = path.Replace("{" + "petId" + "}", apiClient.ParameterToString(PetId));
       
-      _request.AddUrlSegment("format", "json"); // set format to json by default
-      _request.AddUrlSegment("petId", ApiInvoker.ParameterToString(PetId)); // path (url segment) parameter
+
+      var queryParams = new Dictionary<String, String>();
+      var headerParams = new Dictionary<String, String>();
+      var formParams = new Dictionary<String, String>();
+      var fileParams = new Dictionary<String, String>();
+      String postBody = null;
 
       
       
-      if (Name != null) _request.AddParameter("name", ApiInvoker.ParameterToString(Name)); // form parameter
-      if (Status != null) _request.AddParameter("status", ApiInvoker.ParameterToString(Status)); // form parameter
+      if (Name != null) formParams.Add("name", apiClient.ParameterToString(Name)); // form parameter
+      if (Status != null) formParams.Add("status", apiClient.ParameterToString(Status)); // form parameter
       
       
 
+      // authentication setting, if any
+      String[] authSettings = new String[] { "petstore_auth" };
+
       // make the HTTP request
-      IRestResponse response = restClient.Execute(_request);
+      IRestResponse response = (IRestResponse) apiClient.CallApi(path, Method.POST, queryParams, postBody, headerParams, formParams, fileParams, authSettings);
+
       if (((int)response.StatusCode) >= 400) {
         throw new ApiException ((int)response.StatusCode, "Error calling UpdatePetWithForm: " + response.Content);
       }
@@ -251,7 +291,6 @@ namespace IO.Swagger.Api {
       return;
     }
     
-    
     /// <summary>
     /// Deletes a pet 
     /// </summary>
@@ -260,30 +299,34 @@ namespace IO.Swagger.Api {
     /// <returns></returns>
     public void DeletePet (string ApiKey, long? PetId) {
 
-      var _request = new RestRequest("/pet/{petId}", Method.DELETE);
-
       
       // verify the required parameter 'PetId' is set
       if (PetId == null) throw new ApiException(400, "Missing required parameter 'PetId' when calling DeletePet");
       
 
-      // add default header, if any
-      foreach(KeyValuePair<string, string> defaultHeader in ApiInvoker.GetDefaultHeader())
-      {
-        _request.AddHeader(defaultHeader.Key, defaultHeader.Value);
-      }
-
-      _request.AddUrlSegment("format", "json"); // set format to json by default
-      _request.AddUrlSegment("petId", ApiInvoker.ParameterToString(PetId)); // path (url segment) parameter
+      var path = "/pet/{petId}";
+      path = path.Replace("{format}", "json");
+      path = path.Replace("{" + "petId" + "}", apiClient.ParameterToString(PetId));
       
 
-       if (ApiKey != null) _request.AddHeader("api_key", ApiInvoker.ParameterToString(ApiKey)); // header parameter
+      var queryParams = new Dictionary<String, String>();
+      var headerParams = new Dictionary<String, String>();
+      var formParams = new Dictionary<String, String>();
+      var fileParams = new Dictionary<String, String>();
+      String postBody = null;
+
+      
+       if (ApiKey != null) headerParams.Add("api_key", apiClient.ParameterToString(ApiKey)); // header parameter
       
       
       
 
+      // authentication setting, if any
+      String[] authSettings = new String[] { "petstore_auth" };
+
       // make the HTTP request
-      IRestResponse response = restClient.Execute(_request);
+      IRestResponse response = (IRestResponse) apiClient.CallApi(path, Method.DELETE, queryParams, postBody, headerParams, formParams, fileParams, authSettings);
+
       if (((int)response.StatusCode) >= 400) {
         throw new ApiException ((int)response.StatusCode, "Error calling DeletePet: " + response.Content);
       }
@@ -291,7 +334,6 @@ namespace IO.Swagger.Api {
       return;
     }
     
-    
     /// <summary>
     /// uploads an image 
     /// </summary>
@@ -301,31 +343,35 @@ namespace IO.Swagger.Api {
     /// <returns></returns>
     public void UploadFile (long? PetId, string AdditionalMetadata, string File) {
 
-      var _request = new RestRequest("/pet/{petId}/uploadImage", Method.POST);
-
       
       // verify the required parameter 'PetId' is set
       if (PetId == null) throw new ApiException(400, "Missing required parameter 'PetId' when calling UploadFile");
       
 
-      // add default header, if any
-      foreach(KeyValuePair<string, string> defaultHeader in ApiInvoker.GetDefaultHeader())
-      {
-        _request.AddHeader(defaultHeader.Key, defaultHeader.Value);
-      }
+      var path = "/pet/{petId}/uploadImage";
+      path = path.Replace("{format}", "json");
+      path = path.Replace("{" + "petId" + "}", apiClient.ParameterToString(PetId));
       
-      _request.AddUrlSegment("format", "json"); // set format to json by default
-      _request.AddUrlSegment("petId", ApiInvoker.ParameterToString(PetId)); // path (url segment) parameter
+
+      var queryParams = new Dictionary<String, String>();
+      var headerParams = new Dictionary<String, String>();
+      var formParams = new Dictionary<String, String>();
+      var fileParams = new Dictionary<String, String>();
+      String postBody = null;
 
       
       
-      if (AdditionalMetadata != null) _request.AddParameter("additionalMetadata", ApiInvoker.ParameterToString(AdditionalMetadata)); // form parameter
-      if (File != null) _request.AddFile("file", File);
+      if (AdditionalMetadata != null) formParams.Add("additionalMetadata", apiClient.ParameterToString(AdditionalMetadata)); // form parameter
+      if (File != null) fileParams.Add("file", File);
       
       
 
+      // authentication setting, if any
+      String[] authSettings = new String[] { "petstore_auth" };
+
       // make the HTTP request
-      IRestResponse response = restClient.Execute(_request);
+      IRestResponse response = (IRestResponse) apiClient.CallApi(path, Method.POST, queryParams, postBody, headerParams, formParams, fileParams, authSettings);
+
       if (((int)response.StatusCode) >= 400) {
         throw new ApiException ((int)response.StatusCode, "Error calling UploadFile: " + response.Content);
       }

samples/client/petstore/csharp/src/main/csharp/io/swagger/Api/StoreApi.cs

@@ -6,33 +6,54 @@ using IO.Swagger.Model;
 
 namespace IO.Swagger.Api {
   
+  /// <summary>
+  /// Represents a collection of functions to interact with the API endpoints
+  /// </summary>
   public class StoreApi {
-    string basePath;
-    protected RestClient restClient;
-
-    public StoreApi(String basePath = "http://petstore.swagger.io/v2")
-    {
-      this.basePath = basePath;
-      this.restClient = new RestClient(basePath);
-    }
-
     /// <summary>
-    /// Sets the endpoint base url for the services being accessed
+    /// Initializes a new instance of the <see cref="StoreApi"/> class.
     /// </summary>
-    /// <param name="basePath"> Base URL
+    /// <param name="apiClient"> an instance of ApiClient (optional)
     /// <returns></returns>
-    public void SetBasePath(string basePath) {
-      this.basePath = basePath;
+    public StoreApi(ApiClient apiClient = null) {
+      if (apiClient == null) { // use the default one in Configuration
+        this.apiClient = Configuration.apiClient; 
+      } else {
+        this.apiClient = apiClient;
+      }
     }
 
     /// <summary>
-    /// Gets the endpoint base url for the services being accessed
-    /// <returns>Base URL</returns>
+    /// Initializes a new instance of the <see cref="StoreApi"/> class.
     /// </summary>
-    public String GetBasePath() {
-      return this.basePath;
+    /// <returns></returns>
+    public StoreApi(String basePath)
+    {
+      this.apiClient = new ApiClient(basePath);
     }
 
+    /// <summary>
+    /// Sets the base path of the API client.
+    /// </summary>
+    /// <value>The base path</value>
+    public void SetBasePath(String basePath) {
+      this.apiClient.basePath = basePath;
+    }
+
+    /// <summary>
+    /// Gets the base path of the API client.
+    /// </summary>
+    /// <value>The base path</value>
+    public String GetBasePath(String basePath) {
+      return this.apiClient.basePath;
+    }
+
+    /// <summary>
+    /// Gets or sets the API client.
+    /// </summary>
+    /// <value>The API client</value>
+    public ApiClient apiClient {get; set;}
+
 
     
     /// <summary>
@@ -41,32 +62,35 @@ namespace IO.Swagger.Api {
     /// <returns>Dictionary<String, int?></returns>
     public Dictionary<String, int?> GetInventory () {
 
-      var _request = new RestRequest("/store/inventory", Method.GET);
       
 
+      var path = "/store/inventory";
+      path = path.Replace("{format}", "json");
       
-      // add default header, if any
-      foreach(KeyValuePair<string, string> defaultHeader in ApiInvoker.GetDefaultHeader())
-      {
-        _request.AddHeader(defaultHeader.Key, defaultHeader.Value);
-      }
 
-      _request.AddUrlSegment("format", "json"); // set format to json by default
+      var queryParams = new Dictionary<String, String>();
+      var headerParams = new Dictionary<String, String>();
+      var formParams = new Dictionary<String, String>();
+      var fileParams = new Dictionary<String, String>();
+      String postBody = null;
 
       
       
       
       
 
+      // authentication setting, if any
+      String[] authSettings = new String[] { "api_key" };
+
       // make the HTTP request
-      IRestResponse response = restClient.Execute(_request);
+      IRestResponse response = (IRestResponse) apiClient.CallApi(path, Method.GET, queryParams, postBody, headerParams, formParams, fileParams, authSettings);
+
       if (((int)response.StatusCode) >= 400) {
         throw new ApiException ((int)response.StatusCode, "Error calling GetInventory: " + response.Content);
       }
-      return (Dictionary<String, int?>) ApiInvoker.Deserialize(response.Content, typeof(Dictionary<String, int?>));
+      return (Dictionary<String, int?>) apiClient.Deserialize(response.Content, typeof(Dictionary<String, int?>));
     }
     
-    
     /// <summary>
     /// Place an order for a pet 
     /// </summary>
@@ -74,33 +98,36 @@ namespace IO.Swagger.Api {
     /// <returns>Order</returns>
     public Order PlaceOrder (Order Body) {
 
-      var _request = new RestRequest("/store/order", Method.POST);
       
 
+      var path = "/store/order";
+      path = path.Replace("{format}", "json");
       
-      // add default header, if any
-      foreach(KeyValuePair<string, string> defaultHeader in ApiInvoker.GetDefaultHeader())
-      {
-        _request.AddHeader(defaultHeader.Key, defaultHeader.Value);
-      }
 
-      _request.AddUrlSegment("format", "json"); // set format to json by default
+      var queryParams = new Dictionary<String, String>();
+      var headerParams = new Dictionary<String, String>();
+      var formParams = new Dictionary<String, String>();
+      var fileParams = new Dictionary<String, String>();
+      String postBody = null;
 
       
       
       
-      _request.AddParameter("application/json", ApiInvoker.Serialize(Body), ParameterType.RequestBody); // http body (model) parameter
+      postBody = apiClient.Serialize(Body); // http body (model) parameter
       
 
+      // authentication setting, if any
+      String[] authSettings = new String[] {  };
+
       // make the HTTP request
-      IRestResponse response = restClient.Execute(_request);
+      IRestResponse response = (IRestResponse) apiClient.CallApi(path, Method.POST, queryParams, postBody, headerParams, formParams, fileParams, authSettings);
+
       if (((int)response.StatusCode) >= 400) {
         throw new ApiException ((int)response.StatusCode, "Error calling PlaceOrder: " + response.Content);
       }
-      return (Order) ApiInvoker.Deserialize(response.Content, typeof(Order));
+      return (Order) apiClient.Deserialize(response.Content, typeof(Order));
     }
     
-    
     /// <summary>
     /// Find purchase order by ID For valid response try integer IDs with value &lt;= 5 or &gt; 10. Other values will generated exceptions
     /// </summary>
@@ -108,36 +135,39 @@ namespace IO.Swagger.Api {
     /// <returns>Order</returns>
     public Order GetOrderById (string OrderId) {
 
-      var _request = new RestRequest("/store/order/{orderId}", Method.GET);
-
       
       // verify the required parameter 'OrderId' is set
       if (OrderId == null) throw new ApiException(400, "Missing required parameter 'OrderId' when calling GetOrderById");
       
 
-      // add default header, if any
-      foreach(KeyValuePair<string, string> defaultHeader in ApiInvoker.GetDefaultHeader())
-      {
-        _request.AddHeader(defaultHeader.Key, defaultHeader.Value);
-      }
+      var path = "/store/order/{orderId}";
+      path = path.Replace("{format}", "json");
+      path = path.Replace("{" + "orderId" + "}", apiClient.ParameterToString(OrderId));
       
-      _request.AddUrlSegment("format", "json"); // set format to json by default
-      _request.AddUrlSegment("orderId", ApiInvoker.ParameterToString(OrderId)); // path (url segment) parameter
+
+      var queryParams = new Dictionary<String, String>();
+      var headerParams = new Dictionary<String, String>();
+      var formParams = new Dictionary<String, String>();
+      var fileParams = new Dictionary<String, String>();
+      String postBody = null;
 
       
       
       
       
 
+      // authentication setting, if any
+      String[] authSettings = new String[] {  };
+
       // make the HTTP request
-      IRestResponse response = restClient.Execute(_request);
+      IRestResponse response = (IRestResponse) apiClient.CallApi(path, Method.GET, queryParams, postBody, headerParams, formParams, fileParams, authSettings);
+
       if (((int)response.StatusCode) >= 400) {
         throw new ApiException ((int)response.StatusCode, "Error calling GetOrderById: " + response.Content);
       }
-      return (Order) ApiInvoker.Deserialize(response.Content, typeof(Order));
+      return (Order) apiClient.Deserialize(response.Content, typeof(Order));
     }
     
-    
     /// <summary>
     /// Delete purchase order by ID For valid response try integer IDs with value &lt; 1000. Anything above 1000 or nonintegers will generate API errors
     /// </summary>
@@ -145,29 +175,33 @@ namespace IO.Swagger.Api {
     /// <returns></returns>
     public void DeleteOrder (string OrderId) {
 
-      var _request = new RestRequest("/store/order/{orderId}", Method.DELETE);
-
       
       // verify the required parameter 'OrderId' is set
       if (OrderId == null) throw new ApiException(400, "Missing required parameter 'OrderId' when calling DeleteOrder");
       
 
-      // add default header, if any
-      foreach(KeyValuePair<string, string> defaultHeader in ApiInvoker.GetDefaultHeader())
-      {
-        _request.AddHeader(defaultHeader.Key, defaultHeader.Value);
-      }
+      var path = "/store/order/{orderId}";
+      path = path.Replace("{format}", "json");
+      path = path.Replace("{" + "orderId" + "}", apiClient.ParameterToString(OrderId));
       
-      _request.AddUrlSegment("format", "json"); // set format to json by default
-      _request.AddUrlSegment("orderId", ApiInvoker.ParameterToString(OrderId)); // path (url segment) parameter
+
+      var queryParams = new Dictionary<String, String>();
+      var headerParams = new Dictionary<String, String>();
+      var formParams = new Dictionary<String, String>();
+      var fileParams = new Dictionary<String, String>();
+      String postBody = null;
 
       
       
       
       
 
+      // authentication setting, if any
+      String[] authSettings = new String[] {  };
+
       // make the HTTP request
-      IRestResponse response = restClient.Execute(_request);
+      IRestResponse response = (IRestResponse) apiClient.CallApi(path, Method.DELETE, queryParams, postBody, headerParams, formParams, fileParams, authSettings);
+
       if (((int)response.StatusCode) >= 400) {
         throw new ApiException ((int)response.StatusCode, "Error calling DeleteOrder: " + response.Content);
       }

samples/client/petstore/csharp/src/main/csharp/io/swagger/Api/UserApi.cs

@@ -6,33 +6,54 @@ using IO.Swagger.Model;
 
 namespace IO.Swagger.Api {
   
+  /// <summary>
+  /// Represents a collection of functions to interact with the API endpoints
+  /// </summary>
   public class UserApi {
-    string basePath;
-    protected RestClient restClient;
-
-    public UserApi(String basePath = "http://petstore.swagger.io/v2")
-    {
-      this.basePath = basePath;
-      this.restClient = new RestClient(basePath);
-    }
-
     /// <summary>
-    /// Sets the endpoint base url for the services being accessed
+    /// Initializes a new instance of the <see cref="UserApi"/> class.
     /// </summary>
-    /// <param name="basePath"> Base URL
+    /// <param name="apiClient"> an instance of ApiClient (optional)
     /// <returns></returns>
-    public void SetBasePath(string basePath) {
-      this.basePath = basePath;
+    public UserApi(ApiClient apiClient = null) {
+      if (apiClient == null) { // use the default one in Configuration
+        this.apiClient = Configuration.apiClient; 
+      } else {
+        this.apiClient = apiClient;
+      }
     }
 
     /// <summary>
-    /// Gets the endpoint base url for the services being accessed
-    /// <returns>Base URL</returns>
+    /// Initializes a new instance of the <see cref="UserApi"/> class.
     /// </summary>
-    public String GetBasePath() {
-      return this.basePath;
+    /// <returns></returns>
+    public UserApi(String basePath)
+    {
+      this.apiClient = new ApiClient(basePath);
     }
 
+    /// <summary>
+    /// Sets the base path of the API client.
+    /// </summary>
+    /// <value>The base path</value>
+    public void SetBasePath(String basePath) {
+      this.apiClient.basePath = basePath;
+    }
+
+    /// <summary>
+    /// Gets the base path of the API client.
+    /// </summary>
+    /// <value>The base path</value>
+    public String GetBasePath(String basePath) {
+      return this.apiClient.basePath;
+    }
+
+    /// <summary>
+    /// Gets or sets the API client.
+    /// </summary>
+    /// <value>The API client</value>
+    public ApiClient apiClient {get; set;}
+
 
     
     /// <summary>
@@ -42,26 +63,30 @@ namespace IO.Swagger.Api {
     /// <returns></returns>
     public void CreateUser (User Body) {
 
-      var _request = new RestRequest("/user", Method.POST);
       
 
+      var path = "/user";
+      path = path.Replace("{format}", "json");
       
-      // add default header, if any
-      foreach(KeyValuePair<string, string> defaultHeader in ApiInvoker.GetDefaultHeader())
-      {
-        _request.AddHeader(defaultHeader.Key, defaultHeader.Value);
-      }
 
-      _request.AddUrlSegment("format", "json"); // set format to json by default
+      var queryParams = new Dictionary<String, String>();
+      var headerParams = new Dictionary<String, String>();
+      var formParams = new Dictionary<String, String>();
+      var fileParams = new Dictionary<String, String>();
+      String postBody = null;
 
       
       
       
-      _request.AddParameter("application/json", ApiInvoker.Serialize(Body), ParameterType.RequestBody); // http body (model) parameter
+      postBody = apiClient.Serialize(Body); // http body (model) parameter
       
 
+      // authentication setting, if any
+      String[] authSettings = new String[] {  };
+
       // make the HTTP request
-      IRestResponse response = restClient.Execute(_request);
+      IRestResponse response = (IRestResponse) apiClient.CallApi(path, Method.POST, queryParams, postBody, headerParams, formParams, fileParams, authSettings);
+
       if (((int)response.StatusCode) >= 400) {
         throw new ApiException ((int)response.StatusCode, "Error calling CreateUser: " + response.Content);
       }
@@ -69,7 +94,6 @@ namespace IO.Swagger.Api {
       return;
     }
     
-    
     /// <summary>
     /// Creates list of users with given input array 
     /// </summary>
@@ -77,26 +101,30 @@ namespace IO.Swagger.Api {
     /// <returns></returns>
     public void CreateUsersWithArrayInput (List<User> Body) {
 
-      var _request = new RestRequest("/user/createWithArray", Method.POST);
       
 
+      var path = "/user/createWithArray";
+      path = path.Replace("{format}", "json");
       
-      // add default header, if any
-      foreach(KeyValuePair<string, string> defaultHeader in ApiInvoker.GetDefaultHeader())
-      {
-        _request.AddHeader(defaultHeader.Key, defaultHeader.Value);
-      }
 
-      _request.AddUrlSegment("format", "json"); // set format to json by default
+      var queryParams = new Dictionary<String, String>();
+      var headerParams = new Dictionary<String, String>();
+      var formParams = new Dictionary<String, String>();
+      var fileParams = new Dictionary<String, String>();
+      String postBody = null;
 
       
       
       
-      _request.AddParameter("application/json", ApiInvoker.Serialize(Body), ParameterType.RequestBody); // http body (model) parameter
+      postBody = apiClient.Serialize(Body); // http body (model) parameter
       
 
+      // authentication setting, if any
+      String[] authSettings = new String[] {  };
+
       // make the HTTP request
-      IRestResponse response = restClient.Execute(_request);
+      IRestResponse response = (IRestResponse) apiClient.CallApi(path, Method.POST, queryParams, postBody, headerParams, formParams, fileParams, authSettings);
+
       if (((int)response.StatusCode) >= 400) {
         throw new ApiException ((int)response.StatusCode, "Error calling CreateUsersWithArrayInput: " + response.Content);
       }
@@ -104,7 +132,6 @@ namespace IO.Swagger.Api {
       return;
     }
     
-    
     /// <summary>
     /// Creates list of users with given input array 
     /// </summary>
@@ -112,26 +139,30 @@ namespace IO.Swagger.Api {
     /// <returns></returns>
     public void CreateUsersWithListInput (List<User> Body) {
 
-      var _request = new RestRequest("/user/createWithList", Method.POST);
       
 
+      var path = "/user/createWithList";
+      path = path.Replace("{format}", "json");
       
-      // add default header, if any
-      foreach(KeyValuePair<string, string> defaultHeader in ApiInvoker.GetDefaultHeader())
-      {
-        _request.AddHeader(defaultHeader.Key, defaultHeader.Value);
-      }
 
-      _request.AddUrlSegment("format", "json"); // set format to json by default
+      var queryParams = new Dictionary<String, String>();
+      var headerParams = new Dictionary<String, String>();
+      var formParams = new Dictionary<String, String>();
+      var fileParams = new Dictionary<String, String>();
+      String postBody = null;
 
       
       
       
-      _request.AddParameter("application/json", ApiInvoker.Serialize(Body), ParameterType.RequestBody); // http body (model) parameter
+      postBody = apiClient.Serialize(Body); // http body (model) parameter
       
 
+      // authentication setting, if any
+      String[] authSettings = new String[] {  };
+
       // make the HTTP request
-      IRestResponse response = restClient.Execute(_request);
+      IRestResponse response = (IRestResponse) apiClient.CallApi(path, Method.POST, queryParams, postBody, headerParams, formParams, fileParams, authSettings);
+
       if (((int)response.StatusCode) >= 400) {
         throw new ApiException ((int)response.StatusCode, "Error calling CreateUsersWithListInput: " + response.Content);
       }
@@ -139,7 +170,6 @@ namespace IO.Swagger.Api {
       return;
     }
     
-    
     /// <summary>
     /// Logs user into the system 
     /// </summary>
@@ -148,59 +178,66 @@ namespace IO.Swagger.Api {
     /// <returns>string</returns>
     public string LoginUser (string Username, string Password) {
 
-      var _request = new RestRequest("/user/login", Method.GET);
       
 
+      var path = "/user/login";
+      path = path.Replace("{format}", "json");
       
-      // add default header, if any
-      foreach(KeyValuePair<string, string> defaultHeader in ApiInvoker.GetDefaultHeader())
-      {
-        _request.AddHeader(defaultHeader.Key, defaultHeader.Value);
-      }
 
-      _request.AddUrlSegment("format", "json"); // set format to json by default
+      var queryParams = new Dictionary<String, String>();
+      var headerParams = new Dictionary<String, String>();
+      var formParams = new Dictionary<String, String>();
+      var fileParams = new Dictionary<String, String>();
+      String postBody = null;
 
-       if (Username != null) _request.AddParameter("username", ApiInvoker.ParameterToString(Username)); // query parameter
-       if (Password != null) _request.AddParameter("password", ApiInvoker.ParameterToString(Password)); // query parameter
+       if (Username != null) queryParams.Add("username", apiClient.ParameterToString(Username)); // query parameter
+       if (Password != null) queryParams.Add("password", apiClient.ParameterToString(Password)); // query parameter
       
       
       
       
 
+      // authentication setting, if any
+      String[] authSettings = new String[] {  };
+
       // make the HTTP request
-      IRestResponse response = restClient.Execute(_request);
+      IRestResponse response = (IRestResponse) apiClient.CallApi(path, Method.GET, queryParams, postBody, headerParams, formParams, fileParams, authSettings);
+
       if (((int)response.StatusCode) >= 400) {
         throw new ApiException ((int)response.StatusCode, "Error calling LoginUser: " + response.Content);
       }
-      return (string) ApiInvoker.Deserialize(response.Content, typeof(string));
+      return (string) apiClient.Deserialize(response.Content, typeof(string));
     }
     
-    
     /// <summary>
     /// Logs out current logged in user session 
     /// </summary>
     /// <returns></returns>
     public void LogoutUser () {
 
-      var _request = new RestRequest("/user/logout", Method.GET);
       
 
+      var path = "/user/logout";
+      path = path.Replace("{format}", "json");
       
-      // add default header, if any
-      foreach(KeyValuePair<string, string> defaultHeader in ApiInvoker.GetDefaultHeader())
-      {
-        _request.AddHeader(defaultHeader.Key, defaultHeader.Value);
-      }
 
-      _request.AddUrlSegment("format", "json"); // set format to json by default
+      var queryParams = new Dictionary<String, String>();
+      var headerParams = new Dictionary<String, String>();
+      var formParams = new Dictionary<String, String>();
+      var fileParams = new Dictionary<String, String>();
+      String postBody = null;
 
       
       
       
       
 
+      // authentication setting, if any
+      String[] authSettings = new String[] {  };
+
       // make the HTTP request
-      IRestResponse response = restClient.Execute(_request);
+      IRestResponse response = (IRestResponse) apiClient.CallApi(path, Method.GET, queryParams, postBody, headerParams, formParams, fileParams, authSettings);
+
       if (((int)response.StatusCode) >= 400) {
         throw new ApiException ((int)response.StatusCode, "Error calling LogoutUser: " + response.Content);
       }
@@ -208,7 +245,6 @@ namespace IO.Swagger.Api {
       return;
     }
     
-    
     /// <summary>
     /// Get user by user name 
     /// </summary>
@@ -216,36 +252,39 @@ namespace IO.Swagger.Api {
     /// <returns>User</returns>
     public User GetUserByName (string Username) {
 
-      var _request = new RestRequest("/user/{username}", Method.GET);
-
       
       // verify the required parameter 'Username' is set
       if (Username == null) throw new ApiException(400, "Missing required parameter 'Username' when calling GetUserByName");
       
 
-      // add default header, if any
-      foreach(KeyValuePair<string, string> defaultHeader in ApiInvoker.GetDefaultHeader())
-      {
-        _request.AddHeader(defaultHeader.Key, defaultHeader.Value);
-      }
+      var path = "/user/{username}";
+      path = path.Replace("{format}", "json");
+      path = path.Replace("{" + "username" + "}", apiClient.ParameterToString(Username));
       
-      _request.AddUrlSegment("format", "json"); // set format to json by default
-      _request.AddUrlSegment("username", ApiInvoker.ParameterToString(Username)); // path (url segment) parameter
+
+      var queryParams = new Dictionary<String, String>();
+      var headerParams = new Dictionary<String, String>();
+      var formParams = new Dictionary<String, String>();
+      var fileParams = new Dictionary<String, String>();
+      String postBody = null;
 
       
       
       
       
 
+      // authentication setting, if any
+      String[] authSettings = new String[] {  };
+
       // make the HTTP request
-      IRestResponse response = restClient.Execute(_request);
+      IRestResponse response = (IRestResponse) apiClient.CallApi(path, Method.GET, queryParams, postBody, headerParams, formParams, fileParams, authSettings);
+
       if (((int)response.StatusCode) >= 400) {
         throw new ApiException ((int)response.StatusCode, "Error calling GetUserByName: " + response.Content);
       }
-      return (User) ApiInvoker.Deserialize(response.Content, typeof(User));
+      return (User) apiClient.Deserialize(response.Content, typeof(User));
     }
     
-    
     /// <summary>
     /// Updated user This can only be done by the logged in user.
     /// </summary>
@@ -254,30 +293,34 @@ namespace IO.Swagger.Api {
     /// <returns></returns>
     public void UpdateUser (string Username, User Body) {
 
-      var _request = new RestRequest("/user/{username}", Method.PUT);
-
       
       // verify the required parameter 'Username' is set
       if (Username == null) throw new ApiException(400, "Missing required parameter 'Username' when calling UpdateUser");
       
 
-      // add default header, if any
-      foreach(KeyValuePair<string, string> defaultHeader in ApiInvoker.GetDefaultHeader())
-      {
-        _request.AddHeader(defaultHeader.Key, defaultHeader.Value);
-      }
+      var path = "/user/{username}";
+      path = path.Replace("{format}", "json");
+      path = path.Replace("{" + "username" + "}", apiClient.ParameterToString(Username));
       
-      _request.AddUrlSegment("format", "json"); // set format to json by default
-      _request.AddUrlSegment("username", ApiInvoker.ParameterToString(Username)); // path (url segment) parameter
+
+      var queryParams = new Dictionary<String, String>();
+      var headerParams = new Dictionary<String, String>();
+      var formParams = new Dictionary<String, String>();
+      var fileParams = new Dictionary<String, String>();
+      String postBody = null;
 
       
       
       
-      _request.AddParameter("application/json", ApiInvoker.Serialize(Body), ParameterType.RequestBody); // http body (model) parameter
+      postBody = apiClient.Serialize(Body); // http body (model) parameter
       
 
+      // authentication setting, if any
+      String[] authSettings = new String[] {  };
+
       // make the HTTP request
-      IRestResponse response = restClient.Execute(_request);
+      IRestResponse response = (IRestResponse) apiClient.CallApi(path, Method.PUT, queryParams, postBody, headerParams, formParams, fileParams, authSettings);
+
       if (((int)response.StatusCode) >= 400) {
         throw new ApiException ((int)response.StatusCode, "Error calling UpdateUser: " + response.Content);
       }
@@ -285,7 +328,6 @@ namespace IO.Swagger.Api {
       return;
     }
     
-    
     /// <summary>
     /// Delete user This can only be done by the logged in user.
     /// </summary>
@@ -293,29 +335,33 @@ namespace IO.Swagger.Api {
     /// <returns></returns>
     public void DeleteUser (string Username) {
 
-      var _request = new RestRequest("/user/{username}", Method.DELETE);
-
       
       // verify the required parameter 'Username' is set
       if (Username == null) throw new ApiException(400, "Missing required parameter 'Username' when calling DeleteUser");
       
 
-      // add default header, if any
-      foreach(KeyValuePair<string, string> defaultHeader in ApiInvoker.GetDefaultHeader())
-      {
-        _request.AddHeader(defaultHeader.Key, defaultHeader.Value);
-      }
+      var path = "/user/{username}";
+      path = path.Replace("{format}", "json");
+      path = path.Replace("{" + "username" + "}", apiClient.ParameterToString(Username));
       
-      _request.AddUrlSegment("format", "json"); // set format to json by default
-      _request.AddUrlSegment("username", ApiInvoker.ParameterToString(Username)); // path (url segment) parameter
+
+      var queryParams = new Dictionary<String, String>();
+      var headerParams = new Dictionary<String, String>();
+      var formParams = new Dictionary<String, String>();
+      var fileParams = new Dictionary<String, String>();
+      String postBody = null;
 
       
       
       
       
 
+      // authentication setting, if any
+      String[] authSettings = new String[] {  };
+
       // make the HTTP request
-      IRestResponse response = restClient.Execute(_request);
+      IRestResponse response = (IRestResponse) apiClient.CallApi(path, Method.DELETE, queryParams, postBody, headerParams, formParams, fileParams, authSettings);
+
       if (((int)response.StatusCode) >= 400) {
         throw new ApiException ((int)response.StatusCode, "Error calling DeleteUser: " + response.Content);
       }

samples/client/petstore/csharp/src/main/csharp/io/swagger/Model/Category.cs

@@ -3,8 +3,13 @@ using System.Text;
 using System.Collections;
 using System.Collections.Generic;
 using System.Runtime.Serialization;
+using Newtonsoft.Json;
 
 namespace IO.Swagger.Model {
+
+  /// <summary>
+  /// 
+  /// </summary>
   [DataContract]
   public class Category {
     
@@ -18,6 +23,11 @@ namespace IO.Swagger.Model {
     public string Name { get; set; }
 
     
+
+    /// <summary>
+    /// Get the string presentation of the object
+    /// </summary>
+    /// <returns>String presentation of the object</returns>
     public override string ToString()  {
       var sb = new StringBuilder();
       sb.Append("class Category {\n");
@@ -29,7 +39,16 @@ namespace IO.Swagger.Model {
       sb.Append("}\n");
       return sb.ToString();
     }
+
+    /// <summary>
+    /// Get the JSON string presentation of the object
+    /// </summary>
+    /// <returns>JSON string presentation of the object</returns>
+    public string ToJson() {
+      return JsonConvert.SerializeObject(this, Formatting.Indented);
     }
 
+}
+  
   
 }

samples/client/petstore/csharp/src/main/csharp/io/swagger/Model/Order.cs

@@ -3,8 +3,13 @@ using System.Text;
 using System.Collections;
 using System.Collections.Generic;
 using System.Runtime.Serialization;
+using Newtonsoft.Json;
 
 namespace IO.Swagger.Model {
+
+  /// <summary>
+  /// 
+  /// </summary>
   [DataContract]
   public class Order {
     
@@ -25,7 +30,7 @@ namespace IO.Swagger.Model {
     
     
     [DataMember(Name="shipDate", EmitDefaultValue=false)]
-    public DateTime ShipDate { get; set; }
+    public DateTime? ShipDate { get; set; }
 
     
     /* Order Status */
@@ -38,6 +43,11 @@ namespace IO.Swagger.Model {
     public bool? Complete { get; set; }
 
     
+
+    /// <summary>
+    /// Get the string presentation of the object
+    /// </summary>
+    /// <returns>String presentation of the object</returns>
     public override string ToString()  {
       var sb = new StringBuilder();
       sb.Append("class Order {\n");
@@ -57,7 +67,16 @@ namespace IO.Swagger.Model {
       sb.Append("}\n");
       return sb.ToString();
     }
+
+    /// <summary>
+    /// Get the JSON string presentation of the object
+    /// </summary>
+    /// <returns>JSON string presentation of the object</returns>
+    public string ToJson() {
+      return JsonConvert.SerializeObject(this, Formatting.Indented);
     }
 
+}
+  
   
 }

samples/client/petstore/csharp/src/main/csharp/io/swagger/Model/Pet.cs

@@ -3,8 +3,13 @@ using System.Text;
 using System.Collections;
 using System.Collections.Generic;
 using System.Runtime.Serialization;
+using Newtonsoft.Json;
 
 namespace IO.Swagger.Model {
+
+  /// <summary>
+  /// 
+  /// </summary>
   [DataContract]
   public class Pet {
     
@@ -38,6 +43,11 @@ namespace IO.Swagger.Model {
     public string Status { get; set; }
 
     
+
+    /// <summary>
+    /// Get the string presentation of the object
+    /// </summary>
+    /// <returns>String presentation of the object</returns>
     public override string ToString()  {
       var sb = new StringBuilder();
       sb.Append("class Pet {\n");
@@ -57,7 +67,16 @@ namespace IO.Swagger.Model {
       sb.Append("}\n");
       return sb.ToString();
     }
+
+    /// <summary>
+    /// Get the JSON string presentation of the object
+    /// </summary>
+    /// <returns>JSON string presentation of the object</returns>
+    public string ToJson() {
+      return JsonConvert.SerializeObject(this, Formatting.Indented);
     }
 
+}
+  
   
 }

samples/client/petstore/csharp/src/main/csharp/io/swagger/Model/Tag.cs

@@ -3,8 +3,13 @@ using System.Text;
 using System.Collections;
 using System.Collections.Generic;
 using System.Runtime.Serialization;
+using Newtonsoft.Json;
 
 namespace IO.Swagger.Model {
+
+  /// <summary>
+  /// 
+  /// </summary>
   [DataContract]
   public class Tag {
     
@@ -18,6 +23,11 @@ namespace IO.Swagger.Model {
     public string Name { get; set; }
 
     
+
+    /// <summary>
+    /// Get the string presentation of the object
+    /// </summary>
+    /// <returns>String presentation of the object</returns>
     public override string ToString()  {
       var sb = new StringBuilder();
       sb.Append("class Tag {\n");
@@ -29,7 +39,16 @@ namespace IO.Swagger.Model {
       sb.Append("}\n");
       return sb.ToString();
     }
+
+    /// <summary>
+    /// Get the JSON string presentation of the object
+    /// </summary>
+    /// <returns>JSON string presentation of the object</returns>
+    public string ToJson() {
+      return JsonConvert.SerializeObject(this, Formatting.Indented);
     }
 
+}
+  
   
 }

samples/client/petstore/csharp/src/main/csharp/io/swagger/Model/User.cs

@@ -3,8 +3,13 @@ using System.Text;
 using System.Collections;
 using System.Collections.Generic;
 using System.Runtime.Serialization;
+using Newtonsoft.Json;
 
 namespace IO.Swagger.Model {
+
+  /// <summary>
+  /// 
+  /// </summary>
   [DataContract]
   public class User {
     
@@ -48,6 +53,11 @@ namespace IO.Swagger.Model {
     public int? UserStatus { get; set; }
 
     
+
+    /// <summary>
+    /// Get the string presentation of the object
+    /// </summary>
+    /// <returns>String presentation of the object</returns>
     public override string ToString()  {
       var sb = new StringBuilder();
       sb.Append("class User {\n");
@@ -71,7 +81,16 @@ namespace IO.Swagger.Model {
       sb.Append("}\n");
       return sb.ToString();
     }
+
+    /// <summary>
+    /// Get the JSON string presentation of the object
+    /// </summary>
+    /// <returns>JSON string presentation of the object</returns>
+    public string ToJson() {
+      return JsonConvert.SerializeObject(this, Formatting.Indented);
     }
 
+}
+  
   
 }

samples/client/petstore/csharp/src/main/csharp/io/swagger/client/ApiClient.cs

@@ -0,0 +1,212 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Net;
+using System.Text;
+using Newtonsoft.Json;
+using RestSharp;
+
+namespace IO.Swagger.Client {
+  /// <summary>
+  /// API client is mainly responible for making the HTTP call to the API backend
+  /// </summary>
+  public class ApiClient {
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="ApiClient"/> class.
+    /// </summary>
+    /// <param name="basePath">The base path.</param>
+    public ApiClient(String basePath="http://petstore.swagger.io/v2") {
+      this.basePath = basePath;
+      this.restClient = new RestClient(this.basePath);
+    }
+
+    /// <summary>
+    /// Gets or sets the base path.
+    /// </summary>
+    /// <value>The base path.</value> 
+    public string basePath { get; set; }
+
+    /// <summary>
+    /// Gets or sets the RestClient
+    /// </summary>
+    /// <value>The RestClient.</value> 
+    public RestClient restClient { get; set; }
+
+    private Dictionary<String, String> defaultHeaderMap = new Dictionary<String, String>();
+
+    public Object CallApi(String Path, RestSharp.Method Method, Dictionary<String, String> QueryParams, String PostBody, 
+      Dictionary<String, String> HeaderParams, Dictionary<String, String> FormParams, Dictionary<String, String> FileParams, String[] AuthSettings) {
+
+      var request = new RestRequest(Path, Method);
+
+      UpdateParamsForAuth(QueryParams, HeaderParams, AuthSettings);
+
+      // add default header, if any
+      foreach(KeyValuePair<string, string> defaultHeader in this.defaultHeaderMap)
+        request.AddHeader(defaultHeader.Key, defaultHeader.Value);
+
+      // add header parameter, if any
+      foreach(KeyValuePair<string, string> param in HeaderParams)
+        request.AddHeader(param.Key, param.Value);
+     
+      // add query parameter, if any
+      foreach(KeyValuePair<string, string> param in QueryParams)
+        request.AddQueryParameter(param.Key, param.Value);
+
+      // add form parameter, if any
+      foreach(KeyValuePair<string, string> param in FormParams)
+        request.AddParameter(param.Key, param.Value);
+
+      // add file parameter, if any
+      foreach(KeyValuePair<string, string> param in FileParams)
+        request.AddFile(param.Key, param.Value);
+
+      if (PostBody != null) {
+        request.AddParameter("application/json", PostBody, ParameterType.RequestBody); // http body (model) parameter
+      }
+
+      return (Object)restClient.Execute(request);
+
+    }
+
+    /// <summary>
+    /// Add default header
+    /// </summary>
+    /// <param name="key">  Header field name
+    /// <param name="value"> Header field value
+    /// <returns></returns>
+    public void AddDefaultHeader(string key, string value) {
+       defaultHeaderMap.Add(key, value);
+    }
+
+    /// <summary>
+    /// Get default header
+    /// </summary>
+    /// <returns>Dictionary of default header</returns>
+    public Dictionary<String, String> GetDefaultHeader() {
+       return defaultHeaderMap;
+    }
+
+    /// <summary>
+    /// escape string (url-encoded)
+    /// </summary>
+    /// <param name="str"> String to be escaped
+    /// <returns>Escaped string</returns>
+    public string EscapeString(string str) {
+      return str;
+    }
+
+    /// <summary>
+    /// if parameter is DateTime, output in ISO8601 format
+    /// if parameter is a list of string, join the list with ","
+    /// otherwise just return the string
+    /// </summary>
+    /// <param name="obj"> The parameter (header, path, query, form)
+    /// <returns>Formatted string</returns>
+    public string ParameterToString(object obj)
+    {
+      if (obj is DateTime) {
+        return ((DateTime)obj).ToString ("u");
+      } else if (obj is List<string>) {
+        return String.Join(",", obj as List<string>);
+      } else {
+	return Convert.ToString (obj);
+      }
+    }
+
+    /// <summary>
+    /// Deserialize the JSON string into a proper object
+    /// </summary>
+    /// <param name="json"> JSON string
+    /// <param name="type"> Object type
+    /// <returns>Object representation of the JSON string</returns>
+    public object Deserialize(string content, Type type) {
+      if (type.GetType() == typeof(Object))
+        return (Object)content;
+
+      try
+      {
+          return JsonConvert.DeserializeObject(content, type);
+      }
+      catch (IOException e) {
+        throw new ApiException(500, e.Message);
+      }
+    }
+
+    /// <summary>
+    /// Serialize an object into JSON string
+    /// </summary>
+    /// <param name="obj"> Object 
+    /// <returns>JSON string</returns>
+    public string Serialize(object obj) {
+      try
+      {
+          return obj != null ? JsonConvert.SerializeObject(obj) : null;
+      }
+      catch (Exception e) {
+        throw new ApiException(500, e.Message);
+      }
+    }
+
+    /// <summary>
+    /// Get the API key with prefix
+    /// </summary>
+    /// <param name="obj"> Object 
+    /// <returns>API key with prefix</returns>
+    public string GetApiKeyWithPrefix (string apiKey)
+    {
+      var apiKeyValue = "";
+      Configuration.apiKey.TryGetValue (apiKey, out apiKeyValue);
+      var apiKeyPrefix = "";
+      if (Configuration.apiKeyPrefix.TryGetValue (apiKey, out apiKeyPrefix)) {
+        return apiKeyPrefix + " " + apiKeyValue;
+      } else {
+        return apiKeyValue;
+      }
+    }
+
+    /// <summary>
+    /// Update parameters based on authentication
+    /// </summary>
+    /// <param name="QueryParams">Query parameters</param>
+    /// <param name="HeaderParams">Header parameters</param>
+    /// <param name="AuthSettings">Authentication settings</param>
+    public void UpdateParamsForAuth(Dictionary<String, String> QueryParams, Dictionary<String, String> HeaderParams, string[] AuthSettings) {
+      if (AuthSettings == null || AuthSettings.Length == 0)
+        return;
+  
+      foreach (string auth in AuthSettings) {
+        // determine which one to use
+        switch(auth) {
+          
+          case "api_key":
+            HeaderParams["api_key"] = GetApiKeyWithPrefix("api_key");
+            
+            break;
+          
+          case "petstore_auth":
+            
+            //TODO support oauth
+            break;
+          
+          default:
+            //TODO show warning about security definition not found
+          break;
+        }
+      }
+
+    }
+
+    /// <summary>
+    /// Encode string in base64 format 
+    /// </summary>
+    /// <param name="text">String to be encoded</param>
+    public static string Base64Encode(string text) {
+      var textByte = System.Text.Encoding.UTF8.GetBytes(text);
+      return System.Convert.ToBase64String(textByte);
+    }
+
+  }
+}

samples/client/petstore/csharp/src/main/csharp/io/swagger/client/ApiException.cs

@@ -1,13 +1,27 @@
 using System;
 
 namespace IO.Swagger.Client {
-
+  /// <summary>
+  /// API Exception
+  /// </summary>
   public class ApiException : Exception {
-
+    /// <summary>
+    /// Gets or sets the error code (HTTP status code)
+    /// </summary>
+    /// <value>The error code (HTTP status code).</value>
     public int ErrorCode { get; set; }
 
+    /// <summary>
+    /// Initializes a new instance of the <see cref="ApiException"/> class.
+    /// </summary>
+    /// <param name="basePath">The base path.</param>
     public ApiException() {}
 
+    /// <summary>
+    /// Initializes a new instance of the <see cref="ApiException"/> class.
+    /// </summary>
+    /// <param name="errorCode">HTTP status code.</param>
+    /// <param name="message">Error message.</param>
     public ApiException(int errorCode, string message) : base(message) {
       this.ErrorCode = errorCode;
     }

samples/client/petstore/csharp/src/main/csharp/io/swagger/client/ApiInvoker.cs

@@ -1,84 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Net;
-using System.Text;
-using Newtonsoft.Json;
-
-namespace IO.Swagger.Client {
-  public class ApiInvoker {
-    private static Dictionary<String, String> defaultHeaderMap = new Dictionary<String, String>();
-
-    /// <summary>
-    /// Add default header
-    /// </summary>
-    /// <param name="key">  Header field name
-    /// <param name="value"> Header field value
-    /// <returns></returns>
-    public static void AddDefaultHeader(string key, string value) {
-       defaultHeaderMap.Add(key, value);
-    }
-
-    /// <summary>
-    /// Get default header
-    /// </summary>
-    /// <returns>Dictionary of default header</returns>
-    public static Dictionary<String, String> GetDefaultHeader() {
-       return defaultHeaderMap;
-    }
-
-    /// <summary>
-    /// escape string (url-encoded)
-    /// </summary>
-    /// <param name="str"> String to be escaped
-    /// <returns>Escaped string</returns>
-    public static string EscapeString(string str) {
-      return str;
-    }
-
-    /// <summary>
-    /// if parameter is DateTime, output in ISO8601 format, otherwise just return the string
-    /// </summary>
-    /// <param name="obj"> The parameter (header, path, query, form)
-    /// <returns>Formatted string</returns>
-    public static string ParameterToString(object obj)
-    {
-      return (obj is DateTime) ? ((DateTime)obj).ToString ("u") : Convert.ToString (obj);
-    }
-
-    /// <summary>
-    /// Deserialize the JSON string into a proper object
-    /// </summary>
-    /// <param name="json"> JSON string
-    /// <param name="type"> Object type
-    /// <returns>Object representation of the JSON string</returns>
-    public static object Deserialize(string content, Type type) {
-      if (type.GetType() == typeof(Object))
-        return (Object)content;
-
-      try
-      {
-          return JsonConvert.DeserializeObject(content, type);
-      }
-      catch (IOException e) {
-        throw new ApiException(500, e.Message);
-      }
-    }
-
-    /// <summary>
-    /// Serialize an object into JSON string
-    /// </summary>
-    /// <param name="obj"> Object 
-    /// <returns>JSON string</returns>
-    public static string Serialize(object obj) {
-      try
-      {
-          return obj != null ? JsonConvert.SerializeObject(obj) : null;
-      }
-      catch (Exception e) {
-        throw new ApiException(500, e.Message);
-      }
-    }
-  }
-}

samples/client/petstore/csharp/src/main/csharp/io/swagger/client/Configuration.cs

@@ -0,0 +1,47 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Net;
+using System.Text;
+using IO.Swagger.Client;
+
+namespace IO.Swagger.Client {
+  /// <summary>
+  /// Represents a set of configuration settings
+  /// </summary>
+  public class Configuration{
+
+    /// <summary>
+    /// Gets or sets the API client. This is the default API client for making HTTP calls.
+    /// </summary>
+    /// <value>The API client.</value>
+    public static ApiClient apiClient = new ApiClient();
+
+    /// <summary>
+    /// Gets or sets the username (HTTP basic authentication)
+    /// </summary>
+    /// <value>The username.</value>
+    public static String username { get; set; }
+
+    /// <summary>
+    /// Gets or sets the password (HTTP basic authentication)
+    /// </summary>
+    /// <value>The password.</value>
+    public static String password { get; set; }
+
+    /// <summary>
+    /// Gets or sets the API key based on the authentication name 
+    /// </summary>
+    /// <value>The API key.</value>
+    public static Dictionary<String, String> apiKey = new Dictionary<String, String>();
+
+    /// <summary>
+    /// Gets or sets the prefix (e.g. Token) of the API key based on the authentication name 
+    /// </summary>
+    /// <value>The prefix of the API key.</value>
+    public static Dictionary<String, String> apiKeyPrefix = new Dictionary<String, String>();
+
+
+  }
+}

samples/client/petstore/java/src/main/java/io/swagger/client/ApiClient.java

@@ -30,69 +30,116 @@ import java.net.URLEncoder;
 import java.io.IOException;
 import java.io.UnsupportedEncodingException;
 
+import java.text.DateFormat;
 import java.text.SimpleDateFormat;
 import java.text.ParseException;
 
-public class ApiInvoker {
-  private static ApiInvoker INSTANCE = new ApiInvoker();
+public class ApiClient {
   private Map<String, Client> hostMap = new HashMap<String, Client>();
   private Map<String, String> defaultHeaderMap = new HashMap<String, String>();
-  private boolean isDebug = false;
+  private boolean debugging = false;
+  private String basePath = "http://petstore.swagger.io/v2";
 
-  /**
-   * ISO 8601 date time format.
-   * @see https://en.wikipedia.org/wiki/ISO_8601
-   */
-  public static final SimpleDateFormat DATE_TIME_FORMAT = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ");
+  private DateFormat dateFormat;
 
-  /**
-   * ISO 8601 date format.
-   * @see https://en.wikipedia.org/wiki/ISO_8601
-   */
-  public static final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd");
+  public ApiClient() {
+    // Use ISO 8601 format for date and datetime.
+    // See https://en.wikipedia.org/wiki/ISO_8601
+    this.dateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ");
 
-  static {
     // Use UTC as the default time zone.
-    DATE_TIME_FORMAT.setTimeZone(TimeZone.getTimeZone("UTC"));
-    DATE_FORMAT.setTimeZone(TimeZone.getTimeZone("UTC"));
+    this.dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
 
     // Set default User-Agent.
     setUserAgent("Java-Swagger");
   }
 
-  public static void setUserAgent(String userAgent) {
-    INSTANCE.addDefaultHeader("User-Agent", userAgent);
+  public String getBasePath() {
+    return basePath;
   }
 
-  public static Date parseDateTime(String str) {
+  public ApiClient setBasePath(String basePath) {
+    this.basePath = basePath;
+    return this;
+  }
+
+  /**
+   * Set the User-Agent header's value (by adding to the default header map).
+   */
+  public ApiClient setUserAgent(String userAgent) {
+    addDefaultHeader("User-Agent", userAgent);
+    return this;
+  }
+
+  /**
+   * Add a default header.
+   *
+   * @param key The header's key
+   * @param value The header's value
+   */
+  public ApiClient addDefaultHeader(String key, String value) {
+    defaultHeaderMap.put(key, value);
+    return this;
+  }
+
+  /**
+   * Check that whether debugging is enabled for this API client.
+   */
+  public boolean isDebugging() {
+    return debugging;
+  }
+
+  /**
+   * Enable/disable debugging for this API client.
+   *
+   * @param debugging To enable (true) or disable (false) debugging
+   */
+  public ApiClient setDebugging(boolean debugging) {
+    this.debugging = debugging;
+    return this;
+  }
+
+  /**
+   * Get the date format used to parse/format date parameters.
+   */
+  public DateFormat getDateFormat() {
+    return dateFormat;
+  }
+
+  /**
+   * Set the date format used to parse/format date parameters.
+   */
+  public ApiClient getDateFormat(DateFormat dateFormat) {
+    this.dateFormat = dateFormat;
+    return this;
+  }
+
+  /**
+   * Parse the given string into Date object.
+   */
+  public Date parseDate(String str) {
     try {
-      return DATE_TIME_FORMAT.parse(str);
+      return dateFormat.parse(str);
     } catch (java.text.ParseException e) {
       throw new RuntimeException(e);
     }
   }
 
-  public static Date parseDate(String str) {
-    try {
-      return DATE_FORMAT.parse(str);
-    } catch (java.text.ParseException e) {
-      throw new RuntimeException(e);
-    }
+  /**
+   * Format the given Date object into string.
+   */
+  public String formatDate(Date date) {
+    return dateFormat.format(date);
   }
 
-  public static String formatDateTime(Date datetime) {
-    return DATE_TIME_FORMAT.format(datetime);
-  }
-
-  public static String formatDate(Date date) {
-    return DATE_FORMAT.format(date);
-  }
-
-  public static String parameterToString(Object param) {
+  /**
+   * Format the given parameter object into string.
+   */
+  public String parameterToString(Object param) {
     if (param == null) {
       return "";
     } else if (param instanceof Date) {
-      return formatDateTime((Date) param);
+      return formatDate((Date) param);
     } else if (param instanceof Collection) {
       StringBuilder b = new StringBuilder();
       for(Object o : (Collection)param) {
@@ -107,40 +154,56 @@ public class ApiInvoker {
     }
   }
 
-  public static String selectHeaderAccept(String[] accepts) {
+  /**
+   * Select the Accept header's value from the given accepts array:
+   *   if JSON exists in the given array, use it;
+   *   otherwise use all of them (joining into a string)
+   *
+   * @param accepts The accepts array to select from
+   * @return The Accept header to use. If the given array is empty,
+   *   null will be returned (not to set the Accept header explicitly).
+   */
+  public String selectHeaderAccept(String[] accepts) {
     if (accepts.length == 0) return null;
     if (StringUtil.containsIgnoreCase(accepts, "application/json")) return "application/json";
     return StringUtil.join(accepts, ",");
   }
 
-  public static String selectHeaderContentType(String[] contentTypes) {
+  /**
+   * Select the Content-Type header's value from the given array:
+   *   if JSON exists in the given array, use it;
+   *   otherwise use the first one of the array.
+   *
+   * @param contentTypes The Content-Type array to select from
+   * @return The Content-Type header to use. If the given array is empty,
+   *   JSON will be used.
+   */
+  public String selectHeaderContentType(String[] contentTypes) {
     if (contentTypes.length == 0) return "application/json";
     if (StringUtil.containsIgnoreCase(contentTypes, "application/json")) return "application/json";
     return contentTypes[0];
   }
 
-  public void enableDebug() {
-    isDebug = true;
-  }
-
-  public static ApiInvoker getInstance() {
-    return INSTANCE;
-  }
-
-  public void addDefaultHeader(String key, String value) {
-     defaultHeaderMap.put(key, value);
-  }
-
+  /**
+   * Escape the given string to be used as URL query value.
+   */
   public String escapeString(String str) {
-    try{
+    try {
       return URLEncoder.encode(str, "utf8").replaceAll("\\+", "%20");
-    }
-    catch(UnsupportedEncodingException e) {
+    } catch (UnsupportedEncodingException e) {
       return str;
     }
   }
 
-  public static Object deserialize(String json, String containerType, Class cls) throws ApiException {
+  /**
+   * Deserialize the given JSON string to Java object.
+   *
+   * @param json The JSON string
+   * @param containerType The container type, one of "list", "array" or ""
+   * @param cls The type of the Java object
+   * @return The deserialized Java object
+   */
+  public Object deserialize(String json, String containerType, Class cls) throws ApiException {
     if(null != containerType) {
         containerType = containerType.toLowerCase();
     }
@@ -161,11 +224,14 @@ public class ApiInvoker {
       }
     }
     catch (IOException e) {
-      throw new ApiException(500, e.getMessage());
+      throw new ApiException(500, e.getMessage(), null, json);
     }
   }
 
-  public static String serialize(Object obj) throws ApiException {
+  /**
+   * Serialize the given Java object into JSON string.
+   */
+  public String serialize(Object obj) throws ApiException {
     try {
       if (obj != null)
         return JsonUtil.getJsonMapper().writeValueAsString(obj);
@@ -177,11 +243,22 @@ public class ApiInvoker {
     }
   }
 
-  public String invokeAPI(String host, String path, String method, Map<String, String> queryParams, Object body, Map<String, String> headerParams, Map<String, String> formParams, String accept, String contentType) throws ApiException {
-    Client client = getClient(host);
+  /**
+   * Invoke API by sending HTTP request with the given options.
+   *
+   * @param path The sub-path of the HTTP URL
+   * @param method The request method, one of "GET", "POST", "PUT", and "DELETE"
+   * @param queryParams The query parameters
+   * @param body The request body object
+   * @param headerParams The header parameters
+   * @param formParams The form parameters
+   * @param contentType The request Content-Type
+   * @return The response body in type of string
+   */
+  public String invokeAPI(String path, String method, Map<String, String> queryParams, Object body, Map<String, String> headerParams, Map<String, String> formParams, String accept, String contentType) throws ApiException {
+    Client client = getClient();
 
     StringBuilder b = new StringBuilder();
-
     for(String key : queryParams.keySet()) {
       String value = queryParams.get(key);
       if (value != null){
@@ -196,18 +273,19 @@ public class ApiInvoker {
 
     Builder builder;
     if (accept == null)
-      builder = client.resource(host + path + querystring).getRequestBuilder();
+      builder = client.resource(basePath + path + querystring).getRequestBuilder();
     else
-      builder = client.resource(host + path + querystring).accept(accept);
+      builder = client.resource(basePath + path + querystring).accept(accept);
+
     for(String key : headerParams.keySet()) {
       builder = builder.header(key, headerParams.get(key));
     }
-
     for(String key : defaultHeaderMap.keySet()) {
       if(!headerParams.containsKey(key)) {
         builder = builder.header(key, defaultHeaderMap.get(key));
       }
     }
+
     ClientResponse response = null;
 
     if("GET".equals(method)) {
@@ -254,6 +332,7 @@ public class ApiInvoker {
     else {
       throw new ApiException(500, "unknown method type " + method);
     }
+
     if(response.getClientResponseStatus() == ClientResponse.Status.NO_CONTENT) {
       return null;
     }
@@ -267,9 +346,11 @@ public class ApiInvoker {
     }
     else {
       String message = "error";
+      String respBody = null;
       if(response.hasEntity()) {
         try{
-          message = String.valueOf(response.getEntity(String.class));
+          respBody = String.valueOf(response.getEntity(String.class));
+          message = respBody;
         }
         catch (RuntimeException e) {
           // e.printStackTrace();
@@ -277,16 +358,21 @@ public class ApiInvoker {
       }
       throw new ApiException(
                 response.getClientResponseStatus().getStatusCode(),
-                message);
+                message,
+                response.getHeaders(),
+                respBody);
     }
   }
 
+  /**
+   * Encode the given form parameters as request body.
+   */
   private String getXWWWFormUrlencodedParams(Map<String, String> formParams) {
     StringBuilder formParamBuilder = new StringBuilder();
 
     for (Entry<String, String> param : formParams.entrySet()) {
-      String keyStr = ApiInvoker.parameterToString(param.getKey());
-      String valueStr = ApiInvoker.parameterToString(param.getValue());
+      String keyStr = parameterToString(param.getKey());
+      String valueStr = parameterToString(param.getValue());
 
       try {
         formParamBuilder.append(URLEncoder.encode(keyStr, "utf8"))
@@ -305,14 +391,16 @@ public class ApiInvoker {
     return encodedFormParams;
   }
 
-
-  private Client getClient(String host) {
-    if(!hostMap.containsKey(host)) {
+  /**
+   * Get an existing client or create a new client to handle HTTP request.
+   */
+  private Client getClient() {
+    if(!hostMap.containsKey(basePath)) {
       Client client = Client.create();
-      if(isDebug)
+      if (debugging)
         client.addFilter(new LoggingFilter());
-      hostMap.put(host, client);
+      hostMap.put(basePath, client);
     }
-    return hostMap.get(host);
+    return hostMap.get(basePath);
   }
 }

samples/client/petstore/java/src/main/java/io/swagger/client/ApiException.java

@@ -1,8 +1,13 @@
 package io.swagger.client;
 
+import java.util.Map;
+import java.util.List;
+
 public class ApiException extends Exception {
-  int code = 0;
-  String message = null;
+  private int code = 0;
+  private String message = null;
+  private Map<String, List<String>> responseHeaders = null;
+  private String responseBody = null;
 
   public ApiException() {}
 
@@ -11,19 +16,32 @@ public class ApiException extends Exception {
     this.message = message;
   }
 
-  public int getCode() {
-    return code;
+  public ApiException(int code, String message, Map<String, List<String>> responseHeaders, String responseBody) {
+    this.code = code;
+    this.message = message;
+    this.responseHeaders = responseHeaders;
+    this.responseBody = responseBody;
   }
 
-  public void setCode(int code) {
-    this.code = code;
+  public int getCode() {
+    return code;
   }
 
   public String getMessage() {
     return message;
   }
 
-  public void setMessage(String message) {
-    this.message = message;
+  /**
+   * Get the HTTP response headers.
+   */
+  public Map<String, List<String>> getResponseHeaders() {
+    return responseHeaders;
+  }
+
+  /**
+   * Get the HTTP response body.
+   */
+  public String getResponseBody() {
+    return responseBody;
   }
 }

samples/client/petstore/java/src/main/java/io/swagger/client/Configuration.java

@@ -0,0 +1,21 @@
+package io.swagger.client;
+
+public class Configuration {
+  private static ApiClient defaultApiClient = new ApiClient();
+
+  /**
+   * Get the default API client, which would be used when creating API
+   * instances without providing an API client.
+   */
+  public static ApiClient getDefaultApiClient() {
+    return defaultApiClient;
+  }
+
+  /**
+   * Set the default API client, which would be used when creating API
+   * instances without providing an API client.
+   */
+  public static void setDefaultApiClient(ApiClient apiClient) {
+    defaultApiClient = apiClient;
+  }
+}

samples/client/petstore/java/src/main/java/io/swagger/client/api/PetApi.java

@@ -1,7 +1,8 @@
 package io.swagger.client.api;
 
 import io.swagger.client.ApiException;
-import io.swagger.client.ApiInvoker;
+import io.swagger.client.ApiClient;
+import io.swagger.client.Configuration;
 
 import io.swagger.client.model.*;
 
@@ -20,19 +21,22 @@ import java.util.Map;
 import java.util.HashMap;
 
 public class PetApi {
-  String basePath = "http://petstore.swagger.io/v2";
-  ApiInvoker apiInvoker = ApiInvoker.getInstance();
+  private ApiClient apiClient;
 
-  public ApiInvoker getInvoker() {
-    return apiInvoker;
+  public PetApi() {
+    this(Configuration.getDefaultApiClient());
   }
 
-  public void setBasePath(String basePath) {
-    this.basePath = basePath;
+  public PetApi(ApiClient apiClient) {
+    this.apiClient = apiClient;
   }
 
-  public String getBasePath() {
-    return basePath;
+  public ApiClient getApiClient() {
+    return apiClient;
+  }
+
+  public void setApiClient(ApiClient apiClient) {
+    this.apiClient = apiClient;
   }
 
   
@@ -56,17 +60,17 @@ public class PetApi {
 
     
 
+    
+
     final String[] accepts = {
       "application/json", "application/xml"
     };
-    final String accept = ApiInvoker.selectHeaderAccept(accepts);
+    final String accept = apiClient.selectHeaderAccept(accepts);
 
     final String[] contentTypes = {
       "application/json", "application/xml"
     };
-    final String contentType = ApiInvoker.selectHeaderContentType(contentTypes);
-
-    
+    final String contentType = apiClient.selectHeaderContentType(contentTypes);
 
     if(contentType.startsWith("multipart/form-data")) {
       boolean hasFields = false;
@@ -80,7 +84,7 @@ public class PetApi {
     }
 
     try {
-      String response = apiInvoker.invokeAPI(basePath, path, "PUT", queryParams, postBody, headerParams, formParams, accept, contentType);
+      String response = apiClient.invokeAPI(path, "PUT", queryParams, postBody, headerParams, formParams, accept, contentType);
       if(response != null){
         return ;
       }
@@ -112,17 +116,17 @@ public class PetApi {
 
     
 
+    
+
     final String[] accepts = {
       "application/json", "application/xml"
     };
-    final String accept = ApiInvoker.selectHeaderAccept(accepts);
+    final String accept = apiClient.selectHeaderAccept(accepts);
 
     final String[] contentTypes = {
       "application/json", "application/xml"
     };
-    final String contentType = ApiInvoker.selectHeaderContentType(contentTypes);
-
-    
+    final String contentType = apiClient.selectHeaderContentType(contentTypes);
 
     if(contentType.startsWith("multipart/form-data")) {
       boolean hasFields = false;
@@ -136,7 +140,7 @@ public class PetApi {
     }
 
     try {
-      String response = apiInvoker.invokeAPI(basePath, path, "POST", queryParams, postBody, headerParams, formParams, accept, contentType);
+      String response = apiClient.invokeAPI(path, "POST", queryParams, postBody, headerParams, formParams, accept, contentType);
       if(response != null){
         return ;
       }
@@ -167,20 +171,20 @@ public class PetApi {
     Map<String, String> formParams = new HashMap<String, String>();
 
     if (status != null)
-      queryParams.put("status", ApiInvoker.parameterToString(status));
+      queryParams.put("status", apiClient.parameterToString(status));
+    
+
     
 
     final String[] accepts = {
       "application/json", "application/xml"
     };
-    final String accept = ApiInvoker.selectHeaderAccept(accepts);
+    final String accept = apiClient.selectHeaderAccept(accepts);
 
     final String[] contentTypes = {
       
     };
-    final String contentType = ApiInvoker.selectHeaderContentType(contentTypes);
-
-    
+    final String contentType = apiClient.selectHeaderContentType(contentTypes);
 
     if(contentType.startsWith("multipart/form-data")) {
       boolean hasFields = false;
@@ -194,9 +198,9 @@ public class PetApi {
     }
 
     try {
-      String response = apiInvoker.invokeAPI(basePath, path, "GET", queryParams, postBody, headerParams, formParams, accept, contentType);
+      String response = apiClient.invokeAPI(path, "GET", queryParams, postBody, headerParams, formParams, accept, contentType);
       if(response != null){
-        return (List<Pet>) ApiInvoker.deserialize(response, "array", Pet.class);
+        return (List<Pet>) apiClient.deserialize(response, "array", Pet.class);
       }
       else {
         return null;
@@ -225,20 +229,20 @@ public class PetApi {
     Map<String, String> formParams = new HashMap<String, String>();
 
     if (tags != null)
-      queryParams.put("tags", ApiInvoker.parameterToString(tags));
+      queryParams.put("tags", apiClient.parameterToString(tags));
+    
+
     
 
     final String[] accepts = {
       "application/json", "application/xml"
     };
-    final String accept = ApiInvoker.selectHeaderAccept(accepts);
+    final String accept = apiClient.selectHeaderAccept(accepts);
 
     final String[] contentTypes = {
       
     };
-    final String contentType = ApiInvoker.selectHeaderContentType(contentTypes);
-
-    
+    final String contentType = apiClient.selectHeaderContentType(contentTypes);
 
     if(contentType.startsWith("multipart/form-data")) {
       boolean hasFields = false;
@@ -252,9 +256,9 @@ public class PetApi {
     }
 
     try {
-      String response = apiInvoker.invokeAPI(basePath, path, "GET", queryParams, postBody, headerParams, formParams, accept, contentType);
+      String response = apiClient.invokeAPI(path, "GET", queryParams, postBody, headerParams, formParams, accept, contentType);
       if(response != null){
-        return (List<Pet>) ApiInvoker.deserialize(response, "array", Pet.class);
+        return (List<Pet>) apiClient.deserialize(response, "array", Pet.class);
       }
       else {
         return null;
@@ -281,7 +285,7 @@ public class PetApi {
 
     // create path and map variables
     String path = "/pet/{petId}".replaceAll("\\{format\\}","json")
-      .replaceAll("\\{" + "petId" + "\\}", apiInvoker.escapeString(petId.toString()));
+      .replaceAll("\\{" + "petId" + "\\}", apiClient.escapeString(petId.toString()));
 
     // query params
     Map<String, String> queryParams = new HashMap<String, String>();
@@ -290,17 +294,17 @@ public class PetApi {
 
     
 
+    
+
     final String[] accepts = {
       "application/json", "application/xml"
     };
-    final String accept = ApiInvoker.selectHeaderAccept(accepts);
+    final String accept = apiClient.selectHeaderAccept(accepts);
 
     final String[] contentTypes = {
       
     };
-    final String contentType = ApiInvoker.selectHeaderContentType(contentTypes);
-
-    
+    final String contentType = apiClient.selectHeaderContentType(contentTypes);
 
     if(contentType.startsWith("multipart/form-data")) {
       boolean hasFields = false;
@@ -314,9 +318,9 @@ public class PetApi {
     }
 
     try {
-      String response = apiInvoker.invokeAPI(basePath, path, "GET", queryParams, postBody, headerParams, formParams, accept, contentType);
+      String response = apiClient.invokeAPI(path, "GET", queryParams, postBody, headerParams, formParams, accept, contentType);
       if(response != null){
-        return (Pet) ApiInvoker.deserialize(response, "", Pet.class);
+        return (Pet) apiClient.deserialize(response, "", Pet.class);
       }
       else {
         return null;
@@ -345,7 +349,7 @@ public class PetApi {
 
     // create path and map variables
     String path = "/pet/{petId}".replaceAll("\\{format\\}","json")
-      .replaceAll("\\{" + "petId" + "\\}", apiInvoker.escapeString(petId.toString()));
+      .replaceAll("\\{" + "petId" + "\\}", apiClient.escapeString(petId.toString()));
 
     // query params
     Map<String, String> queryParams = new HashMap<String, String>();
@@ -354,39 +358,45 @@ public class PetApi {
 
     
 
+    
+
     final String[] accepts = {
       "application/json", "application/xml"
     };
-    final String accept = ApiInvoker.selectHeaderAccept(accepts);
+    final String accept = apiClient.selectHeaderAccept(accepts);
 
     final String[] contentTypes = {
       "application/x-www-form-urlencoded"
     };
-    final String contentType = ApiInvoker.selectHeaderContentType(contentTypes);
-
-    
+    final String contentType = apiClient.selectHeaderContentType(contentTypes);
 
     if(contentType.startsWith("multipart/form-data")) {
       boolean hasFields = false;
       FormDataMultiPart mp = new FormDataMultiPart();
       
+      if (name != null) {
         hasFields = true;
-      mp.field("name", ApiInvoker.parameterToString(name), MediaType.MULTIPART_FORM_DATA_TYPE);
+        mp.field("name", apiClient.parameterToString(name), MediaType.MULTIPART_FORM_DATA_TYPE);
+      }
       
+      if (status != null) {
         hasFields = true;
-      mp.field("status", ApiInvoker.parameterToString(status), MediaType.MULTIPART_FORM_DATA_TYPE);
+        mp.field("status", apiClient.parameterToString(status), MediaType.MULTIPART_FORM_DATA_TYPE);
+      }
       
       if(hasFields)
         postBody = mp;
     }
     else {
-      formParams.put("name", ApiInvoker.parameterToString(name));
-      formParams.put("status", ApiInvoker.parameterToString(status));
+      if (name != null)
+        formParams.put("name", apiClient.parameterToString(name));
+      if (status != null)
+        formParams.put("status", apiClient.parameterToString(status));
       
     }
 
     try {
-      String response = apiInvoker.invokeAPI(basePath, path, "POST", queryParams, postBody, headerParams, formParams, accept, contentType);
+      String response = apiClient.invokeAPI(path, "POST", queryParams, postBody, headerParams, formParams, accept, contentType);
       if(response != null){
         return ;
       }
@@ -416,7 +426,7 @@ public class PetApi {
 
     // create path and map variables
     String path = "/pet/{petId}".replaceAll("\\{format\\}","json")
-      .replaceAll("\\{" + "petId" + "\\}", apiInvoker.escapeString(petId.toString()));
+      .replaceAll("\\{" + "petId" + "\\}", apiClient.escapeString(petId.toString()));
 
     // query params
     Map<String, String> queryParams = new HashMap<String, String>();
@@ -425,18 +435,19 @@ public class PetApi {
 
     
 
+    if (apiKey != null)
+      headerParams.put("api_key", apiClient.parameterToString(apiKey));
+    
+
     final String[] accepts = {
       "application/json", "application/xml"
     };
-    final String accept = ApiInvoker.selectHeaderAccept(accepts);
+    final String accept = apiClient.selectHeaderAccept(accepts);
 
     final String[] contentTypes = {
       
     };
-    final String contentType = ApiInvoker.selectHeaderContentType(contentTypes);
-
-    headerParams.put("api_key", ApiInvoker.parameterToString(apiKey));
-    
+    final String contentType = apiClient.selectHeaderContentType(contentTypes);
 
     if(contentType.startsWith("multipart/form-data")) {
       boolean hasFields = false;
@@ -450,7 +461,7 @@ public class PetApi {
     }
 
     try {
-      String response = apiInvoker.invokeAPI(basePath, path, "DELETE", queryParams, postBody, headerParams, formParams, accept, contentType);
+      String response = apiClient.invokeAPI(path, "DELETE", queryParams, postBody, headerParams, formParams, accept, contentType);
       if(response != null){
         return ;
       }
@@ -481,7 +492,7 @@ public class PetApi {
 
     // create path and map variables
     String path = "/pet/{petId}/uploadImage".replaceAll("\\{format\\}","json")
-      .replaceAll("\\{" + "petId" + "\\}", apiInvoker.escapeString(petId.toString()));
+      .replaceAll("\\{" + "petId" + "\\}", apiClient.escapeString(petId.toString()));
 
     // query params
     Map<String, String> queryParams = new HashMap<String, String>();
@@ -490,40 +501,45 @@ public class PetApi {
 
     
 
+    
+
     final String[] accepts = {
       "application/json", "application/xml"
     };
-    final String accept = ApiInvoker.selectHeaderAccept(accepts);
+    final String accept = apiClient.selectHeaderAccept(accepts);
 
     final String[] contentTypes = {
       "multipart/form-data"
     };
-    final String contentType = ApiInvoker.selectHeaderContentType(contentTypes);
-
-    
+    final String contentType = apiClient.selectHeaderContentType(contentTypes);
 
     if(contentType.startsWith("multipart/form-data")) {
       boolean hasFields = false;
       FormDataMultiPart mp = new FormDataMultiPart();
       
+      if (additionalMetadata != null) {
         hasFields = true;
-      mp.field("additionalMetadata", ApiInvoker.parameterToString(additionalMetadata), MediaType.MULTIPART_FORM_DATA_TYPE);
+        mp.field("additionalMetadata", apiClient.parameterToString(additionalMetadata), MediaType.MULTIPART_FORM_DATA_TYPE);
+      }
       
+      if (file != null) {
         hasFields = true;
         mp.field("file", file.getName());
         mp.bodyPart(new FileDataBodyPart("file", file, MediaType.MULTIPART_FORM_DATA_TYPE));
+      }
       
       if(hasFields)
         postBody = mp;
     }
     else {
-      formParams.put("additionalMetadata", ApiInvoker.parameterToString(additionalMetadata));
+      if (additionalMetadata != null)
+        formParams.put("additionalMetadata", apiClient.parameterToString(additionalMetadata));
       
       
     }
 
     try {
-      String response = apiInvoker.invokeAPI(basePath, path, "POST", queryParams, postBody, headerParams, formParams, accept, contentType);
+      String response = apiClient.invokeAPI(path, "POST", queryParams, postBody, headerParams, formParams, accept, contentType);
       if(response != null){
         return ;
       }

samples/client/petstore/java/src/main/java/io/swagger/client/api/StoreApi.java

@@ -1,7 +1,8 @@
 package io.swagger.client.api;
 
 import io.swagger.client.ApiException;
-import io.swagger.client.ApiInvoker;
+import io.swagger.client.ApiClient;
+import io.swagger.client.Configuration;
 
 import io.swagger.client.model.*;
 
@@ -20,19 +21,22 @@ import java.util.Map;
 import java.util.HashMap;
 
 public class StoreApi {
-  String basePath = "http://petstore.swagger.io/v2";
-  ApiInvoker apiInvoker = ApiInvoker.getInstance();
+  private ApiClient apiClient;
 
-  public ApiInvoker getInvoker() {
-    return apiInvoker;
+  public StoreApi() {
+    this(Configuration.getDefaultApiClient());
   }
 
-  public void setBasePath(String basePath) {
-    this.basePath = basePath;
+  public StoreApi(ApiClient apiClient) {
+    this.apiClient = apiClient;
   }
 
-  public String getBasePath() {
-    return basePath;
+  public ApiClient getApiClient() {
+    return apiClient;
+  }
+
+  public void setApiClient(ApiClient apiClient) {
+    this.apiClient = apiClient;
   }
 
   
@@ -55,17 +59,17 @@ public class StoreApi {
 
     
 
+    
+
     final String[] accepts = {
       "application/json", "application/xml"
     };
-    final String accept = ApiInvoker.selectHeaderAccept(accepts);
+    final String accept = apiClient.selectHeaderAccept(accepts);
 
     final String[] contentTypes = {
       
     };
-    final String contentType = ApiInvoker.selectHeaderContentType(contentTypes);
-
-    
+    final String contentType = apiClient.selectHeaderContentType(contentTypes);
 
     if(contentType.startsWith("multipart/form-data")) {
       boolean hasFields = false;
@@ -79,9 +83,9 @@ public class StoreApi {
     }
 
     try {
-      String response = apiInvoker.invokeAPI(basePath, path, "GET", queryParams, postBody, headerParams, formParams, accept, contentType);
+      String response = apiClient.invokeAPI(path, "GET", queryParams, postBody, headerParams, formParams, accept, contentType);
       if(response != null){
-        return (Map<String, Integer>) ApiInvoker.deserialize(response, "map", Map.class);
+        return (Map<String, Integer>) apiClient.deserialize(response, "map", Map.class);
       }
       else {
         return null;
@@ -111,17 +115,17 @@ public class StoreApi {
 
     
 
+    
+
     final String[] accepts = {
       "application/json", "application/xml"
     };
-    final String accept = ApiInvoker.selectHeaderAccept(accepts);
+    final String accept = apiClient.selectHeaderAccept(accepts);
 
     final String[] contentTypes = {
       
     };
-    final String contentType = ApiInvoker.selectHeaderContentType(contentTypes);
-
-    
+    final String contentType = apiClient.selectHeaderContentType(contentTypes);
 
     if(contentType.startsWith("multipart/form-data")) {
       boolean hasFields = false;
@@ -135,9 +139,9 @@ public class StoreApi {
     }
 
     try {
-      String response = apiInvoker.invokeAPI(basePath, path, "POST", queryParams, postBody, headerParams, formParams, accept, contentType);
+      String response = apiClient.invokeAPI(path, "POST", queryParams, postBody, headerParams, formParams, accept, contentType);
       if(response != null){
-        return (Order) ApiInvoker.deserialize(response, "", Order.class);
+        return (Order) apiClient.deserialize(response, "", Order.class);
       }
       else {
         return null;
@@ -164,7 +168,7 @@ public class StoreApi {
 
     // create path and map variables
     String path = "/store/order/{orderId}".replaceAll("\\{format\\}","json")
-      .replaceAll("\\{" + "orderId" + "\\}", apiInvoker.escapeString(orderId.toString()));
+      .replaceAll("\\{" + "orderId" + "\\}", apiClient.escapeString(orderId.toString()));
 
     // query params
     Map<String, String> queryParams = new HashMap<String, String>();
@@ -173,17 +177,17 @@ public class StoreApi {
 
     
 
+    
+
     final String[] accepts = {
       "application/json", "application/xml"
     };
-    final String accept = ApiInvoker.selectHeaderAccept(accepts);
+    final String accept = apiClient.selectHeaderAccept(accepts);
 
     final String[] contentTypes = {
       
     };
-    final String contentType = ApiInvoker.selectHeaderContentType(contentTypes);
-
-    
+    final String contentType = apiClient.selectHeaderContentType(contentTypes);
 
     if(contentType.startsWith("multipart/form-data")) {
       boolean hasFields = false;
@@ -197,9 +201,9 @@ public class StoreApi {
     }
 
     try {
-      String response = apiInvoker.invokeAPI(basePath, path, "GET", queryParams, postBody, headerParams, formParams, accept, contentType);
+      String response = apiClient.invokeAPI(path, "GET", queryParams, postBody, headerParams, formParams, accept, contentType);
       if(response != null){
-        return (Order) ApiInvoker.deserialize(response, "", Order.class);
+        return (Order) apiClient.deserialize(response, "", Order.class);
       }
       else {
         return null;
@@ -226,7 +230,7 @@ public class StoreApi {
 
     // create path and map variables
     String path = "/store/order/{orderId}".replaceAll("\\{format\\}","json")
-      .replaceAll("\\{" + "orderId" + "\\}", apiInvoker.escapeString(orderId.toString()));
+      .replaceAll("\\{" + "orderId" + "\\}", apiClient.escapeString(orderId.toString()));
 
     // query params
     Map<String, String> queryParams = new HashMap<String, String>();
@@ -235,17 +239,17 @@ public class StoreApi {
 
     
 
+    
+
     final String[] accepts = {
       "application/json", "application/xml"
     };
-    final String accept = ApiInvoker.selectHeaderAccept(accepts);
+    final String accept = apiClient.selectHeaderAccept(accepts);
 
     final String[] contentTypes = {
       
     };
-    final String contentType = ApiInvoker.selectHeaderContentType(contentTypes);
-
-    
+    final String contentType = apiClient.selectHeaderContentType(contentTypes);
 
     if(contentType.startsWith("multipart/form-data")) {
       boolean hasFields = false;
@@ -259,7 +263,7 @@ public class StoreApi {
     }
 
     try {
-      String response = apiInvoker.invokeAPI(basePath, path, "DELETE", queryParams, postBody, headerParams, formParams, accept, contentType);
+      String response = apiClient.invokeAPI(path, "DELETE", queryParams, postBody, headerParams, formParams, accept, contentType);
       if(response != null){
         return ;
       }

samples/client/petstore/java/src/main/java/io/swagger/client/api/UserApi.java

@@ -1,7 +1,8 @@
 package io.swagger.client.api;
 
 import io.swagger.client.ApiException;
-import io.swagger.client.ApiInvoker;
+import io.swagger.client.ApiClient;
+import io.swagger.client.Configuration;
 
 import io.swagger.client.model.*;
 
@@ -20,19 +21,22 @@ import java.util.Map;
 import java.util.HashMap;
 
 public class UserApi {
-  String basePath = "http://petstore.swagger.io/v2";
-  ApiInvoker apiInvoker = ApiInvoker.getInstance();
+  private ApiClient apiClient;
 
-  public ApiInvoker getInvoker() {
-    return apiInvoker;
+  public UserApi() {
+    this(Configuration.getDefaultApiClient());
   }
 
-  public void setBasePath(String basePath) {
-    this.basePath = basePath;
+  public UserApi(ApiClient apiClient) {
+    this.apiClient = apiClient;
   }
 
-  public String getBasePath() {
-    return basePath;
+  public ApiClient getApiClient() {
+    return apiClient;
+  }
+
+  public void setApiClient(ApiClient apiClient) {
+    this.apiClient = apiClient;
   }
 
   
@@ -56,17 +60,17 @@ public class UserApi {
 
     
 
+    
+
     final String[] accepts = {
       "application/json", "application/xml"
     };
-    final String accept = ApiInvoker.selectHeaderAccept(accepts);
+    final String accept = apiClient.selectHeaderAccept(accepts);
 
     final String[] contentTypes = {
       
     };
-    final String contentType = ApiInvoker.selectHeaderContentType(contentTypes);
-
-    
+    final String contentType = apiClient.selectHeaderContentType(contentTypes);
 
     if(contentType.startsWith("multipart/form-data")) {
       boolean hasFields = false;
@@ -80,7 +84,7 @@ public class UserApi {
     }
 
     try {
-      String response = apiInvoker.invokeAPI(basePath, path, "POST", queryParams, postBody, headerParams, formParams, accept, contentType);
+      String response = apiClient.invokeAPI(path, "POST", queryParams, postBody, headerParams, formParams, accept, contentType);
       if(response != null){
         return ;
       }
@@ -112,17 +116,17 @@ public class UserApi {
 
     
 
+    
+
     final String[] accepts = {
       "application/json", "application/xml"
     };
-    final String accept = ApiInvoker.selectHeaderAccept(accepts);
+    final String accept = apiClient.selectHeaderAccept(accepts);
 
     final String[] contentTypes = {
       
     };
-    final String contentType = ApiInvoker.selectHeaderContentType(contentTypes);
-
-    
+    final String contentType = apiClient.selectHeaderContentType(contentTypes);
 
     if(contentType.startsWith("multipart/form-data")) {
       boolean hasFields = false;
@@ -136,7 +140,7 @@ public class UserApi {
     }
 
     try {
-      String response = apiInvoker.invokeAPI(basePath, path, "POST", queryParams, postBody, headerParams, formParams, accept, contentType);
+      String response = apiClient.invokeAPI(path, "POST", queryParams, postBody, headerParams, formParams, accept, contentType);
       if(response != null){
         return ;
       }
@@ -168,17 +172,17 @@ public class UserApi {
 
     
 
+    
+
     final String[] accepts = {
       "application/json", "application/xml"
     };
-    final String accept = ApiInvoker.selectHeaderAccept(accepts);
+    final String accept = apiClient.selectHeaderAccept(accepts);
 
     final String[] contentTypes = {
       
     };
-    final String contentType = ApiInvoker.selectHeaderContentType(contentTypes);
-
-    
+    final String contentType = apiClient.selectHeaderContentType(contentTypes);
 
     if(contentType.startsWith("multipart/form-data")) {
       boolean hasFields = false;
@@ -192,7 +196,7 @@ public class UserApi {
     }
 
     try {
-      String response = apiInvoker.invokeAPI(basePath, path, "POST", queryParams, postBody, headerParams, formParams, accept, contentType);
+      String response = apiClient.invokeAPI(path, "POST", queryParams, postBody, headerParams, formParams, accept, contentType);
       if(response != null){
         return ;
       }
@@ -224,22 +228,22 @@ public class UserApi {
     Map<String, String> formParams = new HashMap<String, String>();
 
     if (username != null)
-      queryParams.put("username", ApiInvoker.parameterToString(username));
+      queryParams.put("username", apiClient.parameterToString(username));
     if (password != null)
-      queryParams.put("password", ApiInvoker.parameterToString(password));
+      queryParams.put("password", apiClient.parameterToString(password));
+    
+
     
 
     final String[] accepts = {
       "application/json", "application/xml"
     };
-    final String accept = ApiInvoker.selectHeaderAccept(accepts);
+    final String accept = apiClient.selectHeaderAccept(accepts);
 
     final String[] contentTypes = {
       
     };
-    final String contentType = ApiInvoker.selectHeaderContentType(contentTypes);
-
-    
+    final String contentType = apiClient.selectHeaderContentType(contentTypes);
 
     if(contentType.startsWith("multipart/form-data")) {
       boolean hasFields = false;
@@ -253,9 +257,9 @@ public class UserApi {
     }
 
     try {
-      String response = apiInvoker.invokeAPI(basePath, path, "GET", queryParams, postBody, headerParams, formParams, accept, contentType);
+      String response = apiClient.invokeAPI(path, "GET", queryParams, postBody, headerParams, formParams, accept, contentType);
       if(response != null){
-        return (String) ApiInvoker.deserialize(response, "", String.class);
+        return (String) apiClient.deserialize(response, "", String.class);
       }
       else {
         return null;
@@ -284,17 +288,17 @@ public class UserApi {
 
     
 
+    
+
     final String[] accepts = {
       "application/json", "application/xml"
     };
-    final String accept = ApiInvoker.selectHeaderAccept(accepts);
+    final String accept = apiClient.selectHeaderAccept(accepts);
 
     final String[] contentTypes = {
       
     };
-    final String contentType = ApiInvoker.selectHeaderContentType(contentTypes);
-
-    
+    final String contentType = apiClient.selectHeaderContentType(contentTypes);
 
     if(contentType.startsWith("multipart/form-data")) {
       boolean hasFields = false;
@@ -308,7 +312,7 @@ public class UserApi {
     }
 
     try {
-      String response = apiInvoker.invokeAPI(basePath, path, "GET", queryParams, postBody, headerParams, formParams, accept, contentType);
+      String response = apiClient.invokeAPI(path, "GET", queryParams, postBody, headerParams, formParams, accept, contentType);
       if(response != null){
         return ;
       }
@@ -337,7 +341,7 @@ public class UserApi {
 
     // create path and map variables
     String path = "/user/{username}".replaceAll("\\{format\\}","json")
-      .replaceAll("\\{" + "username" + "\\}", apiInvoker.escapeString(username.toString()));
+      .replaceAll("\\{" + "username" + "\\}", apiClient.escapeString(username.toString()));
 
     // query params
     Map<String, String> queryParams = new HashMap<String, String>();
@@ -346,17 +350,17 @@ public class UserApi {
 
     
 
+    
+
     final String[] accepts = {
       "application/json", "application/xml"
     };
-    final String accept = ApiInvoker.selectHeaderAccept(accepts);
+    final String accept = apiClient.selectHeaderAccept(accepts);
 
     final String[] contentTypes = {
       
     };
-    final String contentType = ApiInvoker.selectHeaderContentType(contentTypes);
-
-    
+    final String contentType = apiClient.selectHeaderContentType(contentTypes);
 
     if(contentType.startsWith("multipart/form-data")) {
       boolean hasFields = false;
@@ -370,9 +374,9 @@ public class UserApi {
     }
 
     try {
-      String response = apiInvoker.invokeAPI(basePath, path, "GET", queryParams, postBody, headerParams, formParams, accept, contentType);
+      String response = apiClient.invokeAPI(path, "GET", queryParams, postBody, headerParams, formParams, accept, contentType);
       if(response != null){
-        return (User) ApiInvoker.deserialize(response, "", User.class);
+        return (User) apiClient.deserialize(response, "", User.class);
       }
       else {
         return null;
@@ -400,7 +404,7 @@ public class UserApi {
 
     // create path and map variables
     String path = "/user/{username}".replaceAll("\\{format\\}","json")
-      .replaceAll("\\{" + "username" + "\\}", apiInvoker.escapeString(username.toString()));
+      .replaceAll("\\{" + "username" + "\\}", apiClient.escapeString(username.toString()));
 
     // query params
     Map<String, String> queryParams = new HashMap<String, String>();
@@ -409,17 +413,17 @@ public class UserApi {
 
     
 
+    
+
     final String[] accepts = {
       "application/json", "application/xml"
     };
-    final String accept = ApiInvoker.selectHeaderAccept(accepts);
+    final String accept = apiClient.selectHeaderAccept(accepts);
 
     final String[] contentTypes = {
       
     };
-    final String contentType = ApiInvoker.selectHeaderContentType(contentTypes);
-
-    
+    final String contentType = apiClient.selectHeaderContentType(contentTypes);
 
     if(contentType.startsWith("multipart/form-data")) {
       boolean hasFields = false;
@@ -433,7 +437,7 @@ public class UserApi {
     }
 
     try {
-      String response = apiInvoker.invokeAPI(basePath, path, "PUT", queryParams, postBody, headerParams, formParams, accept, contentType);
+      String response = apiClient.invokeAPI(path, "PUT", queryParams, postBody, headerParams, formParams, accept, contentType);
       if(response != null){
         return ;
       }
@@ -462,7 +466,7 @@ public class UserApi {
 
     // create path and map variables
     String path = "/user/{username}".replaceAll("\\{format\\}","json")
-      .replaceAll("\\{" + "username" + "\\}", apiInvoker.escapeString(username.toString()));
+      .replaceAll("\\{" + "username" + "\\}", apiClient.escapeString(username.toString()));
 
     // query params
     Map<String, String> queryParams = new HashMap<String, String>();
@@ -471,17 +475,17 @@ public class UserApi {
 
     
 
+    
+
     final String[] accepts = {
       "application/json", "application/xml"
     };
-    final String accept = ApiInvoker.selectHeaderAccept(accepts);
+    final String accept = apiClient.selectHeaderAccept(accepts);
 
     final String[] contentTypes = {
       
     };
-    final String contentType = ApiInvoker.selectHeaderContentType(contentTypes);
-
-    
+    final String contentType = apiClient.selectHeaderContentType(contentTypes);
 
     if(contentType.startsWith("multipart/form-data")) {
       boolean hasFields = false;
@@ -495,7 +499,7 @@ public class UserApi {
     }
 
     try {
-      String response = apiInvoker.invokeAPI(basePath, path, "DELETE", queryParams, postBody, headerParams, formParams, accept, contentType);
+      String response = apiClient.invokeAPI(path, "DELETE", queryParams, postBody, headerParams, formParams, accept, contentType);
       if(response != null){
         return ;
       }

samples/client/petstore/java/src/test/java/io/swagger/client/ConfigurationTest.java

@@ -0,0 +1,14 @@
+package io.swagger.client;
+
+import static org.junit.Assert.*;
+import org.junit.*;
+
+public class ConfigurationTest {
+  @Test
+  public void testDefaultApiClient() {
+    ApiClient apiClient = Configuration.getDefaultApiClient();
+    assertNotNull(apiClient);
+    assertEquals("http://petstore.swagger.io/v2", apiClient.getBasePath());
+    assertFalse(apiClient.isDebugging());
+  }
+}

samples/client/petstore/java/src/test/java/io/swagger/petstore/test/PetApiTest.java

@@ -1,6 +1,8 @@
 package io.swagger.petstore.test;
 
 import io.swagger.client.ApiException;
+import io.swagger.client.ApiClient;
+import io.swagger.client.Configuration;
 import io.swagger.client.api.*;
 import io.swagger.client.model.*;
 
@@ -18,6 +20,33 @@ public class PetApiTest {
     api = new PetApi();
   }
 
+  @Test
+  public void testApiClient() {
+    // the default api client is used
+    assertEquals(Configuration.getDefaultApiClient(), api.getApiClient());
+    assertNotNull(api.getApiClient());
+    assertEquals("http://petstore.swagger.io/v2", api.getApiClient().getBasePath());
+    assertFalse(api.getApiClient().isDebugging());
+
+    ApiClient oldClient = api.getApiClient();
+
+    ApiClient newClient = new ApiClient();
+    newClient.setBasePath("http://example.com");
+    newClient.setDebugging(true);
+
+    // set api client via constructor
+    api = new PetApi(newClient);
+    assertNotNull(api.getApiClient());
+    assertEquals("http://example.com", api.getApiClient().getBasePath());
+    assertTrue(api.getApiClient().isDebugging());
+
+    // set api client via setter method
+    api.setApiClient(oldClient);
+    assertNotNull(api.getApiClient());
+    assertEquals("http://petstore.swagger.io/v2", api.getApiClient().getBasePath());
+    assertFalse(api.getApiClient().isDebugging());
+  }
+
   @Test
   public void testCreateAndGetPet() throws Exception {
     Pet pet = createRandomPet();

samples/client/petstore/objc/PetstoreClient/PetstoreClientTests/PetApiTest.m

@@ -12,6 +12,16 @@
     [super tearDown];
 }
 
+- (void)testCreatePetApi {
+    SWGPetApi *api1 = [[SWGPetApi alloc] init];
+    SWGPetApi *api2 = [[SWGPetApi alloc] init];
+    XCTAssertEqual(api1.apiClient, api2.apiClient);
+    
+    SWGApiClient *client = [[SWGApiClient alloc] init];
+    SWGPetApi *api3 = [[SWGPetApi alloc] initWithApiClient:client];
+    XCTAssertNotEqual(api1.apiClient, api3.apiClient);
+}
+
 - (void)testCreateAndGetPet {
     XCTestExpectation *expectation = [self expectationWithDescription:@"testGetPetById"];
     SWGPet* pet = [self createPet];

samples/client/petstore/objc/client/SWGApiClient.m

@@ -134,10 +134,12 @@ static bool loggingEnabled = true;
 }
 
 +(NSNumber*) nextRequestId {
+    @synchronized(self) {
         long nextId = ++requestId;
         if(loggingEnabled)
             NSLog(@"got id %ld", nextId);
         return [NSNumber numberWithLong:nextId];
+    }
 }
 
 +(NSNumber*) queueRequest {

samples/client/petstore/objc/client/SWGPetApi.h

@@ -2,10 +2,14 @@
 #import "SWGPet.h"
 #import "SWGFile.h"
 #import "SWGObject.h"
+#import "SWGApiClient.h"
 
 
 @interface SWGPetApi: NSObject
 
+@property(nonatomic, assign)SWGApiClient *apiClient;
+
+-(instancetype) initWithApiClient:(SWGApiClient *)apiClient;
 -(void) addHeader:(NSString*)value forKey:(NSString*)key;
 -(unsigned long) requestQueueSize;
 +(SWGPetApi*) apiWithHeader:(NSString*)headerValue key:(NSString*)key;

samples/client/petstore/objc/client/SWGPetApi.m

@@ -1,7 +1,6 @@
 #import "SWGPetApi.h"
 #import "SWGFile.h"
 #import "SWGQueryParamCollection.h"
-#import "SWGApiClient.h"
 #import "SWGPet.h"
 #import "SWGFile.h"
 
@@ -11,8 +10,34 @@
 @end
 
 @implementation SWGPetApi
+
 static NSString * basePath = @"http://petstore.swagger.io/v2";
 
+#pragma mark - Initialize methods
+
+- (id) init {
+    self = [super init];
+    if (self) {
+        self.apiClient = [SWGApiClient sharedClientFromPool:basePath];
+        self.defaultHeaders = [NSMutableDictionary dictionary];
+    }
+    return self;
+}
+
+- (id) initWithApiClient:(SWGApiClient *)apiClient {
+    self = [super init];
+    if (self) {
+        if (apiClient) {
+            self.apiClient = apiClient;
+        }
+        else {
+            self.apiClient = [SWGApiClient sharedClientFromPool:basePath];
+        }
+        self.defaultHeaders = [NSMutableDictionary dictionary];
+    }
+    return self;
+}
+
 +(SWGPetApi*) apiWithHeader:(NSString*)headerValue key:(NSString*)key {
     static SWGPetApi* singletonAPI = nil;
 
@@ -31,21 +56,10 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     return basePath;
 }
 
--(SWGApiClient*) apiClient {
-    return [SWGApiClient sharedClientFromPool:basePath];
-}
-
 -(void) addHeader:(NSString*)value forKey:(NSString*)key {
     [self.defaultHeaders setValue:value forKey:key];
 }
 
--(id) init {
-    self = [super init];
-    self.defaultHeaders = [NSMutableDictionary dictionary];
-    [self apiClient];
-    return self;
-}
-
 -(void) setHeaderValue:(NSString*) value
            forKey:(NSString*)key {
     [self.defaultHeaders setValue:value forKey:key];
@@ -135,15 +149,13 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
 
-    SWGApiClient* client = [SWGApiClient sharedClientFromPool:basePath];
-
     
 
     
 
     
     // it's void
-        return [client stringWithCompletionBlock: requestUrl 
+        return [self.apiClient stringWithCompletionBlock: requestUrl 
                                       method: @"PUT" 
                                  queryParams: queryParams 
                                         body: bodyDictionary 
@@ -240,15 +252,13 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
 
-    SWGApiClient* client = [SWGApiClient sharedClientFromPool:basePath];
-
     
 
     
 
     
     // it's void
-        return [client stringWithCompletionBlock: requestUrl 
+        return [self.apiClient stringWithCompletionBlock: requestUrl 
                                       method: @"POST" 
                                  queryParams: queryParams 
                                         body: bodyDictionary 
@@ -328,12 +338,10 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
 
-    SWGApiClient* client = [SWGApiClient sharedClientFromPool:basePath];
-
     
     // response is in a container
         // array container response type
-    return [client dictionary: requestUrl 
+    return [self.apiClient dictionary: requestUrl 
                        method: @"GET" 
                   queryParams: queryParams 
                          body: bodyDictionary 
@@ -365,6 +373,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
 
+    
 }
 
 /*!
@@ -429,12 +438,10 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
 
-    SWGApiClient* client = [SWGApiClient sharedClientFromPool:basePath];
-
     
     // response is in a container
         // array container response type
-    return [client dictionary: requestUrl 
+    return [self.apiClient dictionary: requestUrl 
                        method: @"GET" 
                   queryParams: queryParams 
                          body: bodyDictionary 
@@ -466,6 +473,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
 
+    
 }
 
 /*!
@@ -528,8 +536,6 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
 
-    SWGApiClient* client = [SWGApiClient sharedClientFromPool:basePath];
-
     
 
     
@@ -541,7 +547,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     // complex response
         
     // comples response type
-    return [client dictionary: requestUrl
+    return [self.apiClient dictionary: requestUrl
                        method: @"GET"
                   queryParams: queryParams
                          body: bodyDictionary
@@ -648,15 +654,13 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
 
-    SWGApiClient* client = [SWGApiClient sharedClientFromPool:basePath];
-
     
 
     
 
     
     // it's void
-        return [client stringWithCompletionBlock: requestUrl 
+        return [self.apiClient stringWithCompletionBlock: requestUrl 
                                       method: @"POST" 
                                  queryParams: queryParams 
                                         body: bodyDictionary 
@@ -738,15 +742,13 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
 
-    SWGApiClient* client = [SWGApiClient sharedClientFromPool:basePath];
-
     
 
     
 
     
     // it's void
-        return [client stringWithCompletionBlock: requestUrl 
+        return [self.apiClient stringWithCompletionBlock: requestUrl 
                                       method: @"DELETE" 
                                  queryParams: queryParams 
                                         body: bodyDictionary 
@@ -851,15 +853,13 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
 
-    SWGApiClient* client = [SWGApiClient sharedClientFromPool:basePath];
-
     
 
     
 
     
     // it's void
-        return [client stringWithCompletionBlock: requestUrl 
+        return [self.apiClient stringWithCompletionBlock: requestUrl 
                                       method: @"POST" 
                                  queryParams: queryParams 
                                         body: bodyDictionary 
@@ -880,3 +880,6 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
 
 @end
+
+
+

samples/client/petstore/objc/client/SWGStoreApi.h

@@ -1,10 +1,13 @@
 #import <Foundation/Foundation.h>
 #import "SWGOrder.h"
 #import "SWGObject.h"
+#import "SWGApiClient.h"
 
 
 @interface SWGStoreApi: NSObject
 
+@property(nonatomic, assign)SWGApiClient *apiClient;
+
 -(void) addHeader:(NSString*)value forKey:(NSString*)key;
 -(unsigned long) requestQueueSize;
 +(SWGStoreApi*) apiWithHeader:(NSString*)headerValue key:(NSString*)key;

samples/client/petstore/objc/client/SWGStoreApi.m

@@ -1,7 +1,6 @@
 #import "SWGStoreApi.h"
 #import "SWGFile.h"
 #import "SWGQueryParamCollection.h"
-#import "SWGApiClient.h"
 #import "SWGOrder.h"
 
 
@@ -10,8 +9,34 @@
 @end
 
 @implementation SWGStoreApi
+
 static NSString * basePath = @"http://petstore.swagger.io/v2";
 
+#pragma mark - Initialize methods
+
+- (id) init {
+    self = [super init];
+    if (self) {
+        self.apiClient = [SWGApiClient sharedClientFromPool:basePath];
+        self.defaultHeaders = [NSMutableDictionary dictionary];
+    }
+    return self;
+}
+
+- (id) initWithApiClient:(SWGApiClient *)apiClient {
+    self = [super init];
+    if (self) {
+        if (apiClient) {
+            self.apiClient = apiClient;
+        }
+        else {
+            self.apiClient = [SWGApiClient sharedClientFromPool:basePath];
+        }
+        self.defaultHeaders = [NSMutableDictionary dictionary];
+    }
+    return self;
+}
+
 +(SWGStoreApi*) apiWithHeader:(NSString*)headerValue key:(NSString*)key {
     static SWGStoreApi* singletonAPI = nil;
 
@@ -30,21 +55,10 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     return basePath;
 }
 
--(SWGApiClient*) apiClient {
-    return [SWGApiClient sharedClientFromPool:basePath];
-}
-
 -(void) addHeader:(NSString*)value forKey:(NSString*)key {
     [self.defaultHeaders setValue:value forKey:key];
 }
 
--(id) init {
-    self = [super init];
-    self.defaultHeaders = [NSMutableDictionary dictionary];
-    [self apiClient];
-    return self;
-}
-
 -(void) setHeaderValue:(NSString*) value
            forKey:(NSString*)key {
     [self.defaultHeaders setValue:value forKey:key];
@@ -109,12 +123,10 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
 
-    SWGApiClient* client = [SWGApiClient sharedClientFromPool:basePath];
-
     
     // response is in a container
         // map container response type
-    return [client dictionary: requestUrl 
+    return [self.apiClient dictionary: requestUrl 
                        method: @"GET" 
                   queryParams: queryParams 
                          body: bodyDictionary 
@@ -139,6 +151,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
 
+    
 }
 
 /*!
@@ -220,8 +233,6 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
 
-    SWGApiClient* client = [SWGApiClient sharedClientFromPool:basePath];
-
     
 
     
@@ -233,7 +244,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     // complex response
         
     // comples response type
-    return [client dictionary: requestUrl
+    return [self.apiClient dictionary: requestUrl
                        method: @"POST"
                   queryParams: queryParams
                          body: bodyDictionary
@@ -320,8 +331,6 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
 
-    SWGApiClient* client = [SWGApiClient sharedClientFromPool:basePath];
-
     
 
     
@@ -333,7 +342,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     // complex response
         
     // comples response type
-    return [client dictionary: requestUrl
+    return [self.apiClient dictionary: requestUrl
                        method: @"GET"
                   queryParams: queryParams
                          body: bodyDictionary
@@ -420,15 +429,13 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
 
-    SWGApiClient* client = [SWGApiClient sharedClientFromPool:basePath];
-
     
 
     
 
     
     // it's void
-        return [client stringWithCompletionBlock: requestUrl 
+        return [self.apiClient stringWithCompletionBlock: requestUrl 
                                       method: @"DELETE" 
                                  queryParams: queryParams 
                                         body: bodyDictionary 
@@ -449,3 +456,6 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
 
 @end
+
+
+

samples/client/petstore/objc/client/SWGUserApi.h

@@ -1,10 +1,13 @@
 #import <Foundation/Foundation.h>
 #import "SWGUser.h"
 #import "SWGObject.h"
+#import "SWGApiClient.h"
 
 
 @interface SWGUserApi: NSObject
 
+@property(nonatomic, assign)SWGApiClient *apiClient;
+
 -(void) addHeader:(NSString*)value forKey:(NSString*)key;
 -(unsigned long) requestQueueSize;
 +(SWGUserApi*) apiWithHeader:(NSString*)headerValue key:(NSString*)key;

samples/client/petstore/objc/client/SWGUserApi.m

@@ -1,7 +1,6 @@
 #import "SWGUserApi.h"
 #import "SWGFile.h"
 #import "SWGQueryParamCollection.h"
-#import "SWGApiClient.h"
 #import "SWGUser.h"
 
 
@@ -10,8 +9,34 @@
 @end
 
 @implementation SWGUserApi
+
 static NSString * basePath = @"http://petstore.swagger.io/v2";
 
+#pragma mark - Initialize methods
+
+- (id) init {
+    self = [super init];
+    if (self) {
+        self.apiClient = [SWGApiClient sharedClientFromPool:basePath];
+        self.defaultHeaders = [NSMutableDictionary dictionary];
+    }
+    return self;
+}
+
+- (id) initWithApiClient:(SWGApiClient *)apiClient {
+    self = [super init];
+    if (self) {
+        if (apiClient) {
+            self.apiClient = apiClient;
+        }
+        else {
+            self.apiClient = [SWGApiClient sharedClientFromPool:basePath];
+        }
+        self.defaultHeaders = [NSMutableDictionary dictionary];
+    }
+    return self;
+}
+
 +(SWGUserApi*) apiWithHeader:(NSString*)headerValue key:(NSString*)key {
     static SWGUserApi* singletonAPI = nil;
 
@@ -30,21 +55,10 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     return basePath;
 }
 
--(SWGApiClient*) apiClient {
-    return [SWGApiClient sharedClientFromPool:basePath];
-}
-
 -(void) addHeader:(NSString*)value forKey:(NSString*)key {
     [self.defaultHeaders setValue:value forKey:key];
 }
 
--(id) init {
-    self = [super init];
-    self.defaultHeaders = [NSMutableDictionary dictionary];
-    [self apiClient];
-    return self;
-}
-
 -(void) setHeaderValue:(NSString*) value
            forKey:(NSString*)key {
     [self.defaultHeaders setValue:value forKey:key];
@@ -134,15 +148,13 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
 
-    SWGApiClient* client = [SWGApiClient sharedClientFromPool:basePath];
-
     
 
     
 
     
     // it's void
-        return [client stringWithCompletionBlock: requestUrl 
+        return [self.apiClient stringWithCompletionBlock: requestUrl 
                                       method: @"POST" 
                                  queryParams: queryParams 
                                         body: bodyDictionary 
@@ -239,15 +251,13 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
 
-    SWGApiClient* client = [SWGApiClient sharedClientFromPool:basePath];
-
     
 
     
 
     
     // it's void
-        return [client stringWithCompletionBlock: requestUrl 
+        return [self.apiClient stringWithCompletionBlock: requestUrl 
                                       method: @"POST" 
                                  queryParams: queryParams 
                                         body: bodyDictionary 
@@ -344,15 +354,13 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
 
-    SWGApiClient* client = [SWGApiClient sharedClientFromPool:basePath];
-
     
 
     
 
     
     // it's void
-        return [client stringWithCompletionBlock: requestUrl 
+        return [self.apiClient stringWithCompletionBlock: requestUrl 
                                       method: @"POST" 
                                  queryParams: queryParams 
                                         body: bodyDictionary 
@@ -436,8 +444,6 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
 
-    SWGApiClient* client = [SWGApiClient sharedClientFromPool:basePath];
-
     
 
     
@@ -446,7 +452,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     
     // primitive response
             // primitive response type
-    return [client stringWithCompletionBlock: requestUrl 
+    return [self.apiClient stringWithCompletionBlock: requestUrl 
                                               method: @"GET" 
                                          queryParams: queryParams 
                                                 body: bodyDictionary 
@@ -466,6 +472,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     
 
 
+    
     // complex response
         
 
@@ -528,15 +535,13 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
 
-    SWGApiClient* client = [SWGApiClient sharedClientFromPool:basePath];
-
     
 
     
 
     
     // it's void
-        return [client stringWithCompletionBlock: requestUrl 
+        return [self.apiClient stringWithCompletionBlock: requestUrl 
                                       method: @"GET" 
                                  queryParams: queryParams 
                                         body: bodyDictionary 
@@ -614,8 +619,6 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
 
-    SWGApiClient* client = [SWGApiClient sharedClientFromPool:basePath];
-
     
 
     
@@ -627,7 +630,7 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
     // complex response
         
     // comples response type
-    return [client dictionary: requestUrl
+    return [self.apiClient dictionary: requestUrl
                        method: @"GET"
                   queryParams: queryParams
                          body: bodyDictionary
@@ -739,15 +742,13 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
 
-    SWGApiClient* client = [SWGApiClient sharedClientFromPool:basePath];
-
     
 
     
 
     
     // it's void
-        return [client stringWithCompletionBlock: requestUrl 
+        return [self.apiClient stringWithCompletionBlock: requestUrl 
                                       method: @"PUT" 
                                  queryParams: queryParams 
                                         body: bodyDictionary 
@@ -825,15 +826,13 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
     
 
-    SWGApiClient* client = [SWGApiClient sharedClientFromPool:basePath];
-
     
 
     
 
     
     // it's void
-        return [client stringWithCompletionBlock: requestUrl 
+        return [self.apiClient stringWithCompletionBlock: requestUrl 
                                       method: @"DELETE" 
                                  queryParams: queryParams 
                                         body: bodyDictionary 
@@ -854,3 +853,6 @@ static NSString * basePath = @"http://petstore.swagger.io/v2";
 
 
 @end
+
+
+

samples/client/petstore/perl/lib/WWW/SwaggerClient/APIClient.pm

@@ -1,9 +1,10 @@
-package WWW::SwaggerClient::APIClient;
+package WWW::SwaggerClient::ApiClient;
 
 use strict;
 use warnings;
 use utf8;
 
+use MIME::Base64;
 use LWP::UserAgent;
 use HTTP::Headers;
 use HTTP::Response;
@@ -15,20 +16,18 @@ use URI::Escape;
 use Scalar::Util;
 use Log::Any qw($log);
 use Carp;
-use Switch;
 use Module::Runtime qw(use_module);
 
-# class variables
-my $ua = LWP::UserAgent->new;
-my $http_user_agent = 'Perl-Swagger'; # HTTP user-agent
-my $http_timeout; #timeout
-my $base_url = "http://petstore.swagger.io/v2";
-
+use WWW::SwaggerClient::Configuration;
 
 sub new
 {
   my $class = shift;
-  my %args = @_;
+  my (%args) = (
+    'ua' => LWP::UserAgent->new,
+    'base_url' => 'http://petstore.swagger.io/v2',
+    @_
+  );
 
   return bless \%args, $class;
 }
@@ -38,8 +37,8 @@ sub new
 # @param string $user_agent The user agent of the API client
 #
 sub set_user_agent {
-  my $user_agent = shift;
-  $http_user_agent= $user_agent;
+  my ($self, $user_agent) = @_;
+  $self->{http_user_agent}= $user_agent;
 }
 
 # Set timeout
@@ -47,11 +46,11 @@ sub set_user_agent {
 # @param integer $seconds Number of seconds before timing out [set to 0 for no timeout]
 # 
 sub set_timeout {
-  my $seconds = shift;
+  my ($self, $seconds) = @_;
   if (!looks_like_number($seconds)) {
     croak('Timeout variable must be numeric.');
   }
-  $http_timeout = $seconds;
+  $self->{http_timeout} = $seconds;
 }
 
 # make the HTTP request
@@ -63,60 +62,63 @@ sub set_timeout {
 # @return mixed
 sub call_api {
   my $self = shift;
-  my ($resource_path, $method, $query_params, $post_params, $header_params, $body_data) = @_;
+  my ($resource_path, $method, $query_params, $post_params, $header_params, $body_data, $auth_settings) = @_;
 
-  my $headers = HTTP::Headers->new(%$header_params);
+  # update parameters based on authentication settings
+  $self->update_params_for_auth($header_params, $query_params, $auth_settings); 
 
-  my $_url = $base_url . $resource_path;
+
+  my $_url = $self->{base_url} . $resource_path;
 
   # build query 
   if (%$query_params) {
     $_url = ($_url . '?' . eval { URI::Query->new($query_params)->stringify });
   }
 
+
   # body data
   $body_data = to_json($body_data->to_hash) if defined $body_data && $body_data->can('to_hash'); # model to json string
   my $_body_data = %$post_params ? $post_params : $body_data;
 
   # Make the HTTP request
   my $_request;
-  switch ($method) {
-    case 'POST' {
+  if ($method eq 'POST') {
       # multipart
-      my $_content_type = lc $header_params->{'Content-Type'} eq 'multipart/form' ? 
+      $header_params->{'Content-Type'} = lc $header_params->{'Content-Type'} eq 'multipart/form' ? 
           'form-data' : $header_params->{'Content-Type'};
       
-      $_request = POST($_url, Accept => $header_params->{Accept},
-        Content_Type => $_content_type, Content => $_body_data);
+      $_request = POST($_url, %$header_params, Content => $_body_data);
+
   }
-    case 'PUT' {
+  elsif ($method eq 'PUT') {
       # multipart
-      my $_content_type = lc $header_params->{'Content-Type'} eq 'multipart/form' ? 
+      $header_params->{'Content-Type'}  = lc $header_params->{'Content-Type'} eq 'multipart/form' ? 
           'form-data' : $header_params->{'Content-Type'};
-      $_request = PUT($_url, Accept => $header_params->{Accept},
-        Content_Type => $_content_type, Content => $_body_data);
-    }
-    case 'GET' {
-      $_request = GET($_url, Accept => $header_params->{'Accept'},
-        Content_Type => $header_params->{'Content-Type'});
-    }
-    case 'HEAD' {
-      $_request = HEAD($_url, Accept => $header_params->{'Accept'},
-        Content_Type => $header_params->{'Content-Type'});
-    }
-    case 'DELETE' { #TODO support form data
-      $_request = DELETE($_url, Accept => $header_params->{'Accept'},
-        Content_Type => $header_params->{'Content-Type'}, Content => $_body_data);
-    }
-    case 'PATCH' { #TODO
-    }
+
+      $_request = PUT($_url, %$header_params, Content => $_body_data);
 
   }
+  elsif ($method eq 'GET') {
+      my $headers = HTTP::Headers->new(%$header_params);
+      $_request = GET($_url, %$header_params);
+  }
+  elsif ($method eq 'HEAD') {
+      my $headers = HTTP::Headers->new(%$header_params);
+      $_request = HEAD($_url,%$header_params); 
+  }
+  elsif ($method eq 'DELETE') { #TODO support form data
+      my $headers = HTTP::Headers->new(%$header_params);
+      $_request = DELETE($_url, %$headers);
+  }
+  elsif ($method eq 'PATCH') { #TODO
+  }
+  else {
+  }
  
-  $ua->timeout($http_timeout); 
-  $ua->agent($http_user_agent);
+  $self->{ua}->timeout($self->{http_timeout} || $WWW::SwaggerClient::Configuration::http_timeout); 
+  $self->{ua}->agent($self->{http_user_agent} || $WWW::SwaggerClient::Configuration::http_user_agent);
   
-  my $_response = $ua->request($_request);
+  my $_response = $self->{ua}->request($_request);
 
   unless ($_response->is_success) {
     croak("API Exception(".$_response->code."): ".$_response->message);
@@ -126,41 +128,13 @@ sub call_api {
 
 }
 
-
-# Build a JSON POST object
-sub sanitize_for_serialization
-{
-#  my $data = shift;
-#  if (is_scalar($data) || null === $data) {
-#    $sanitized = $data;
-#  } else if ($data instanceof \DateTime) {
-#    $sanitized = $data->format(\DateTime::ISO8601);
-#  } else if (is_array($data)) {
-#    foreach ($data as $property => $value) {
-#      $data[$property] = $this->sanitizeForSerialization($value);
-#    }
-#    $sanitized = $data;
-#  } else if (is_object($data)) {
-#    $values = array();
-#    foreach (array_keys($data::$swaggerTypes) as $property) {
-#      $values[$data::$attributeMap[$property]] = $this->sanitizeForSerialization($data->$property);
-#    }
-#    $sanitized = $values;
-#  } else {
-#    $sanitized = (string)$data;
-#  }
-#
-#  return $sanitized;
-}
-
-
 #  Take value and turn it into a string suitable for inclusion in
 #  the path, by url-encoding.
 #  @param string $value a string which will be part of the path
 #  @return string the serialized object
 sub to_path_value {
-    my $value = shift;
-    return uri_escape(to_string($value));
+    my ($self, $value) = @_;
+    return uri_escape($self->to_string($value));
 }
 
 
@@ -171,11 +145,11 @@ sub to_path_value {
 # @param object $object an object to be serialized to a string
 # @return string the serialized object
 sub to_query_value {
-      my $object = shift;
+      my ($self, $object) = @_;
       if (is_array($object)) {
           return implode(',', $object);
       } else {
-          return toString($object);
+          return $self->to_string($object);
       }
 }
 
@@ -186,8 +160,8 @@ sub to_query_value {
 # @param string $value a string which will be part of the header
 # @return string the header string
 sub to_header_value {
-    my $value = shift;
-    return to_string($value);
+    my ($self, $value) = @_;
+    return $self->to_string($value);
 }
 
 # Take value and turn it into a string suitable for inclusion in
@@ -196,8 +170,8 @@ sub to_header_value {
 # @param string $value the value of the form parameter
 # @return string the form string
 sub to_form_value {
-    my $value = shift;
-    return to_string($value);
+    my ($self, $value) = @_;
+    return $self->to_string($value);
 }
 
 # Take value and turn it into a string suitable for inclusion in
@@ -206,7 +180,7 @@ sub to_form_value {
 # @param string $value the value of the parameter
 # @return string the header string
 sub to_string {
-  my $value = shift;
+  my ($self, $value) = @_;
   if (ref($value) eq "DateTime") { # datetime in ISO8601 format
     return $value->datetime();
   }
@@ -242,7 +216,7 @@ sub deserialize
     $_result = \@_values;
   } elsif ($class eq 'DateTime') {
     $_result = DateTime->from_epoch(epoch => str2time($data));
-  } elsif (grep /^$data$/, ('string', 'int', 'float', 'bool')) { #TODO revise the primitive type
+  } elsif (grep /^$class$/, ('string', 'int', 'float', 'bool', 'object')) { #TODO revise the primitive type
     $_result= $data;
   } else { # model
     my $_instance = use_module("WWW::SwaggerClient::Object::$class")->new;
@@ -287,5 +261,48 @@ sub select_header_content_type
 
 }
 
+# Get API key (with prefix if set)
+# @param string key name
+# @return string API key with the prefix
+sub get_api_key_with_prefix
+{
+    my ($self, $api_key) = @_;
+    if ($WWW::SwaggerClient::Configuration::api_key_prefix->{$api_key}) {
+      return $WWW::SwaggerClient::Configuration::api_key_prefix->{$api_key}." ".$WWW::SwaggerClient::Configuration::api_key->{$api_key};
+    } else {
+      return $WWW::SwaggerClient::Configuration::api_key->{$api_key};
+    }
+}
+
+# update hearder and query param based on authentication setting
+#  
+# @param array $headerParams header parameters (by ref)
+# @param array $queryParams query parameters (by ref)
+# @param array $authSettings array of authentication scheme (e.g ['api_key'])
+sub update_params_for_auth {
+  my ($self, $header_params, $query_params, $auth_settings) = @_;
+
+  return if (!defined($auth_settings) || scalar(@$auth_settings) == 0);
+
+  # one endpoint can have more than 1 auth settings
+  foreach my $auth (@$auth_settings) {
+    # determine which one to use
+    if (!defined($auth)) {
+    }
+    elsif ($auth eq 'api_key') {
+      $header_params->{'api_key'} = $self->get_api_key_with_prefix('api_key');
+        
+    }
+    elsif ($auth eq 'petstore_auth') {
+      
+        # TODO support oauth
+    }
+    
+    else {
+      # TODO show warning about security definition not found
+    }
+  }
+}
+
 
 1;