Merge pull request #2692 from guohuang/apiclient_update

Rewrite Api_Client.go to use resty api

modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/GoClientCodegen.java

@@ -51,7 +51,7 @@ public class GoClientCodegen extends DefaultCodegen implements CodegenConfig {
                 "case", "defer", "go", "map", "struct",
                 "chan", "else", "goto", "package", "switch",
                 "const", "fallthrough", "if", "range", "type",
-                "continue", "for", "import", "return", "var", "error")
+                "continue", "for", "import", "return", "var", "error", "ApiResponse")
                 // Added "error" as it's used so frequently that it may as well be a keyword
         );
 
@@ -104,6 +104,7 @@ public class GoClientCodegen extends DefaultCodegen implements CodegenConfig {
         importMapping = new HashMap<String, String>();
         importMapping.put("time.Time", "time");
         importMapping.put("*os.File", "os");
+        importMapping.put("os", "io/ioutil");
 
         cliOptions.clear();
         cliOptions.add(new CliOption(CodegenConstants.PACKAGE_NAME, "Go package name (convention: lowercase).")
@@ -144,6 +145,7 @@ public class GoClientCodegen extends DefaultCodegen implements CodegenConfig {
         supportingFiles.add(new SupportingFile("gitignore.mustache", "", ".gitignore"));
         supportingFiles.add(new SupportingFile("configuration.mustache", "", "configuration.go"));
         supportingFiles.add(new SupportingFile("api_client.mustache", "", "api_client.go"));
+        supportingFiles.add(new SupportingFile("api_response.mustache", "", "api_response.go"));
         supportingFiles.add(new SupportingFile("pom.mustache", "", "pom.xml"));
     }
 
@@ -323,7 +325,7 @@ public class GoClientCodegen extends DefaultCodegen implements CodegenConfig {
             return swaggerType;
         }
 
-        return camelize(swaggerType, false);
+        return toModelName(swaggerType);
     }
 
     @Override
@@ -374,6 +376,23 @@ public class GoClientCodegen extends DefaultCodegen implements CodegenConfig {
                 iterator.remove();
         }
 
+        // recursivly add import for mapping one type to multipe imports
+        List<Map<String, String>> recursiveImports = (List<Map<String, String>>) objs.get("imports");
+        if (recursiveImports == null)
+            return objs;
+
+        ListIterator<Map<String, String>> listIterator = imports.listIterator();
+        while (listIterator.hasNext()) {
+            String _import = listIterator.next().get("import");
+            // if the import package happens to be found in the importMapping (key)
+            // add the corresponding import package to the list
+            if (importMapping.containsKey(_import)) {
+                Map<String, String> newImportMap= new HashMap<String, String>();
+                newImportMap.put("import", importMapping.get(_import));
+                listIterator.add(newImportMap);
+            }
+        }
+
         return objs;
     }
 
@@ -388,6 +407,24 @@ public class GoClientCodegen extends DefaultCodegen implements CodegenConfig {
             if (_import.startsWith(prefix))
                 iterator.remove();
         }
+
+        // recursivly add import for mapping one type to multipe imports
+        List<Map<String, String>> recursiveImports = (List<Map<String, String>>) objs.get("imports");
+        if (recursiveImports == null)
+            return objs;
+
+        ListIterator<Map<String, String>> listIterator = imports.listIterator();
+        while (listIterator.hasNext()) {
+            String _import = listIterator.next().get("import");
+            // if the import package happens to be found in the importMapping (key)
+            // add the corresponding import package to the list
+            if (importMapping.containsKey(_import)) {
+                Map<String, String> newImportMap= new HashMap<String, String>();
+                newImportMap.put("import", importMapping.get(_import));
+                listIterator.add(newImportMap);
+            }
+        }
+
         return objs;
     }
 
@@ -404,4 +441,4 @@ public class GoClientCodegen extends DefaultCodegen implements CodegenConfig {
     public void setPackageVersion(String packageVersion) {
         this.packageVersion = packageVersion;
     }
-}
+}

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

@@ -6,7 +6,6 @@ import (
     "fmt"
     "encoding/json"
     "errors"
-    "github.com/dghubble/sling"
 {{#imports}}    "{{import}}"
 {{/imports}}
 )
@@ -38,130 +37,115 @@ func New{{classname}}WithBasePath(basePath string) *{{classname}}{
 {{#allParams}} * @param {{paramName}} {{description}}
 {{/allParams}} * @return {{#returnType}}{{{returnType}}}{{/returnType}}{{^returnType}}void{{/returnType}}
  */
-func (a {{classname}}) {{nickname}} ({{#allParams}}{{paramName}} {{{dataType}}}{{#hasMore}}, {{/hasMore}}{{/allParams}}) ({{#returnType}}{{{returnType}}}, {{/returnType}}error) {
-    {{#allParams}}
-    {{#required}}
-    // verify the required parameter '{{paramName}}' is set
-    if &{{paramName}} == nil {
-        return {{#returnType}}*new({{{returnType}}}), {{/returnType}}errors.New("Missing required parameter '{{paramName}}' when calling {{classname}}->{{operationId}}")
-    }
-    {{/required}}
-    {{/allParams}}
-    _sling := sling.New().{{httpMethod}}(a.Configuration.BasePath)
+func (a {{classname}}) {{nickname}} ({{#allParams}}{{paramName}} {{{dataType}}}{{#hasMore}}, {{/hasMore}}{{/allParams}}) ({{#returnType}}{{{returnType}}}, {{/returnType}}APIResponse, error) {
 
-    {{#authMethods}}// authentication ({{name}}) required
-    {{#isApiKey}}{{#isKeyInHeader}}
-    // set key with prefix in header
-    _sling.Set("{{keyParamName}}", a.Configuration.GetApiKeyWithPrefix("{{keyParamName}}"))
-    {{/isKeyInHeader}}{{#isKeyInQuery}}
-    // set key with prefix in querystring
-    {{#hasKeyParamName}}    type KeyQueryParams struct {
-            {{keyParamName}}    string `url:"{{keyParamName}},omitempty"`
-    }
-    _sling = _sling.QueryStruct(&KeyQueryParams{ {{keyParamName}}: a.Configuration.GetApiKeyWithPrefix("{{keyParamName}}") })
-    {{/hasKeyParamName}}
-    {{/isKeyInQuery}}{{/isApiKey}}    
-    {{#isBasic}}
-    // http basic authentication required
-    if a.Configuration.Username != "" || a.Configuration.Password != ""{
-        _sling.Set("Authorization",  "Basic " + a.Configuration.GetBasicAuthEncodedString())
-    }
-    {{/isBasic}}
-    {{#isOAuth}}
-    // oauth required
-    if a.Configuration.AccessToken != ""{
-        _sling.Set("Authorization", "Bearer " +  a.Configuration.AccessToken)
-    }
-    {{/isOAuth}}    
-    {{/authMethods}}
-
-    // create path and map variables
-    path := "{{basePathWithoutHost}}{{path}}"
-{{#pathParams}}    path = strings.Replace(path, "{" + "{{baseName}}" + "}", fmt.Sprintf("%v", {{paramName}}), -1)
+  var httpMethod = "{{httpMethod}}"
+ // create path and map variables
+  path := a.Configuration.BasePath + "{{path}}"
+{{#pathParams}} path = strings.Replace(path, "{" + "{{baseName}}" + "}", fmt.Sprintf("%v", {{paramName}}), -1)
 {{/pathParams}}
 
-    _sling = _sling.Path(path)
+  {{#allParams}}
+  {{#required}}
+  // verify the required parameter '{{paramName}}' is set
+  if &{{paramName}} == nil {
+      return {{#returnType}}*new({{{returnType}}}), {{/returnType}}*NewAPIResponseWithError("400 - Bad Request"), errors.New("Missing required parameter '{{paramName}}' when calling {{classname}}->{{operationId}}")
+  }
+  {{/required}}
+  {{/allParams}}
 
-    // add default headers if any
-    for key := range a.Configuration.DefaultHeader {
-      _sling = _sling.Set(key, a.Configuration.DefaultHeader[key])
-    }
-    
-{{#hasQueryParams}}    type QueryParams struct {
-        {{#queryParams}}{{vendorExtensions.x-exportParamName}}    {{dataType}} `url:"{{baseName}},omitempty"`
-        {{/queryParams}}
-}
-    _sling = _sling.QueryStruct(&QueryParams{ {{#queryParams}}{{vendorExtensions.x-exportParamName}}: {{paramName}}{{#hasMore}},{{/hasMore}}{{/queryParams}} })
-{{/hasQueryParams}}
+  headerParams := make(map[string]string)
+  queryParams := make(map[string]string)
+  formParams := make(map[string]string)
+  var postBody interface{}
+  var fileName string
+  var fileBytes []byte
 
-    // to determine the Content-Type header
-    localVarHttpContentTypes := []string {
-        {{#consumes}}
-        "{{mediaType}}", 
-        {{/consumes}}
-    }
-    //set Content-Type header
-    localVarHttpContentType := a.Configuration.ApiClient.SelectHeaderContentType(localVarHttpContentTypes)
-    if localVarHttpContentType != "" {    
-      _sling = _sling.Set("Content-Type", localVarHttpContentType)
-    }
+  {{#authMethods}}// authentication ({{name}}) required
+  {{#isApiKey}}{{#isKeyInHeader}}
+  // set key with prefix in header
+  headerParams["{{keyParamName}}"] = a.Configuration.GetAPIKeyWithPrefix("{{keyParamName}}")
+  {{/isKeyInHeader}}{{#isKeyInQuery}}
+  // set key with prefix in querystring
+  {{#hasKeyParamName}}    
+  queryParams["{{keyParamName}}"] =  a.Configuration.GetAPIKeyWithPrefix("{{keyParamName}}")
+  {{/hasKeyParamName}}
+  {{/isKeyInQuery}}{{/isApiKey}}    
+  {{#isBasic}}
+  // http basic authentication required
+  if a.Configuration.Username != "" || a.Configuration.Password != ""{
+      headerParams["Authorization"] =  "Basic " + a.Configuration.GetBasicAuthEncodedString()
+  }
+  {{/isBasic}}
+  {{#isOAuth}}
+  // oauth required
+  if a.Configuration.AccessToken != ""{
+      headerParams["Authorization"] =  "Bearer " + a.Configuration.AccessToken
+  }
+  {{/isOAuth}}    
+  {{/authMethods}}
 
-    // to determine the Accept header
-    localVarHttpHeaderAccepts := []string {
-        {{#produces}}
-        "{{mediaType}}", 
-        {{/produces}}
-    }
-    //set Accept header
-    localVarHttpHeaderAccept := a.Configuration.ApiClient.SelectHeaderAccept(localVarHttpHeaderAccepts)
-    if localVarHttpHeaderAccept != "" {  
-        _sling = _sling.Set("Accept", localVarHttpHeaderAccept)
-    }
+  // add default headers if any
+  for key := range a.Configuration.DefaultHeader {
+      headerParams[key] = a.Configuration.DefaultHeader[key]
+  }
+  
+  {{#hasQueryParams}}    
+  {{#queryParams}}
+  queryParams["{{paramName}}"] = a.Configuration.APIClient.ParameterToString({{paramName}})
+  {{/queryParams}}
+  {{/hasQueryParams}}
+
+  // to determine the Content-Type header
+  localVarHttpContentTypes := []string {
+      {{#consumes}}
+      "{{mediaType}}", 
+      {{/consumes}}
+  }
+  //set Content-Type header
+  localVarHttpContentType := a.Configuration.APIClient.SelectHeaderContentType(localVarHttpContentTypes)
+  if localVarHttpContentType != "" {    
+      headerParams["Content-Type"] = localVarHttpContentType
+  }
+  // to determine the Accept header
+  localVarHttpHeaderAccepts := []string {
+      {{#produces}}
+      "{{mediaType}}", 
+      {{/produces}}
+  }
+  //set Accept header
+  localVarHttpHeaderAccept := a.Configuration.APIClient.SelectHeaderAccept(localVarHttpHeaderAccepts)
+  if localVarHttpHeaderAccept != "" {  
+      headerParams["Accept"] = localVarHttpHeaderAccept
+  }
 {{#hasHeaderParams}}{{#headerParams}}    // header params "{{baseName}}"
-    _sling = _sling.Set("{{baseName}}", {{paramName}})
+    headerParams["{{baseName}}"] = {{paramName}}
 {{/headerParams}}{{/hasHeaderParams}}
-{{#hasFormParams}}    type FormParams struct {
-{{#formParams}}        {{vendorExtensions.x-exportParamName}}    {{dataType}} `url:"{{baseName}},omitempty"`
+{{#hasFormParams}}
+{{#formParams}}
+  {{#isFile}}fbs, _ := ioutil.ReadAll(file)
+  fileBytes = fbs
+  fileName = file.Name()
+  {{/isFile}}
+{{^isFile}}formParams["{{paramName}}"] = {{paramName}}
+  {{/isFile}}
 {{/formParams}}
-    }
-    _sling = _sling.BodyForm(&FormParams{ {{#formParams}}{{vendorExtensions.x-exportParamName}}: {{paramName}}{{#hasMore}},{{/hasMore}}{{/formParams}} })
-{{/hasFormParams}}
-{{#hasBodyParam}}{{#bodyParams}}// body params
-    _sling = _sling.BodyJSON({{paramName}})
+{{/hasFormParams}}{{#hasBodyParam}}{{#bodyParams}}  // body params
+  postBody = &{{paramName}}
 {{/bodyParams}}{{/hasBodyParam}}
 {{#returnType}}  var successPayload = new({{returnType}}){{/returnType}}
+  httpResponse, err := a.Configuration.APIClient.CallAPI(path, httpMethod, postBody, headerParams, queryParams, formParams, fileName, fileBytes)
 
-  // We use this map (below) so that any arbitrary error JSON can be handled.
-  // FIXME: This is in the absence of this Go generator honoring the non-2xx
-  // response (error) models, which needs to be implemented at some point.
-  var failurePayload map[string]interface{}
 
-  httpResponse, err := _sling.Receive({{#returnType}}successPayload{{/returnType}}{{^returnType}}nil{{/returnType}}, &failurePayload)
-
-  if err == nil {
-    // err == nil only means that there wasn't a sub-application-layer error (e.g. no network error)
-    if failurePayload != nil {
-      // If the failurePayload is present, there likely was some kind of non-2xx status
-      // returned (and a JSON payload error present)
-      var str []byte
-      str, err = json.Marshal(failurePayload)
-      if err == nil { // For safety, check for an error marshalling... probably superfluous
-        // This will return the JSON error body as a string
-        err = errors.New(string(str))
-      }
-  } else {
-    // So, there was no network-type error, and nothing in the failure payload,
-    // but we should still check the status code
-    if httpResponse == nil {
-      // This should never happen...
-      err = errors.New("No HTTP Response received.")
-    } else if code := httpResponse.StatusCode; 200 > code || code > 299 {
-        err = errors.New("HTTP Error: " + string(httpResponse.StatusCode))
-      }
-    }
+  if err != nil {
+    return {{#returnType}}*successPayload, {{/returnType}}*NewAPIResponse(httpResponse.RawResponse), err
   }
+{{#returnType}}
 
-  return {{#returnType}}*successPayload, {{/returnType}}err
+  err = json.Unmarshal(httpResponse.Body(), &successPayload)
+{{/returnType}}
+
+  return {{#returnType}}*successPayload, {{/returnType}}*NewAPIResponse(httpResponse.RawResponse), err
 }
 {{/operation}}
 {{/operations}}

modules/swagger-codegen/src/main/resources/go/api_client.mustache

@@ -2,13 +2,18 @@ package {{packageName}}
 
 import (
     "strings"
+    "github.com/go-resty/resty"
+    "fmt"
+    "reflect"
+    "bytes"
+    "path/filepath"
 )
 
-type ApiClient struct {
+type APIClient struct {
 
 }
 
-func (c *ApiClient) SelectHeaderContentType(contentTypes []string) string {
+func (c *APIClient) SelectHeaderContentType(contentTypes []string) string {
     if (len(contentTypes) == 0){
         return ""
     }
@@ -19,7 +24,7 @@ func (c *ApiClient) SelectHeaderContentType(contentTypes []string) string {
     return contentTypes[0] // use the first content type specified in 'consumes'
 }
 
-func (c *ApiClient) SelectHeaderAccept(accepts []string) string {
+func (c *APIClient) SelectHeaderAccept(accepts []string) string {
     if (len(accepts) == 0){        
         return ""
     }
@@ -38,4 +43,81 @@ func contains(source []string, containvalue string) bool {
         }
     }
     return false
-}
+}
+
+
+func (c *APIClient) CallAPI(path string, method string,
+    postBody interface{},
+    headerParams map[string]string,
+    queryParams map[string]string,
+    formParams map[string]string,
+    fileName string,
+    fileBytes []byte) (*resty.Response, error) {
+
+    //set debug flag
+    configuration := NewConfiguration()
+    resty.SetDebug(configuration.GetDebug())
+
+    request := prepareRequest(postBody, headerParams, queryParams, formParams,fileName,fileBytes)
+
+    switch strings.ToUpper(method) {
+    case "GET":
+        response, err := request.Get(path)
+        return response, err
+    case "POST":
+        response, err := request.Post(path)
+        return response, err
+    case "PUT":
+        response, err := request.Put(path)
+        return response, err
+    case "PATCH":
+        response, err := request.Patch(path)
+        return response, err
+    case "DELETE":
+        response, err := request.Delete(path)
+        return response, err
+    }
+
+    return nil, fmt.Errorf("invalid method %v", method)
+}
+
+func (c *APIClient) ParameterToString(obj interface{}) string {
+    if reflect.TypeOf(obj).String() == "[]string" {
+        return strings.Join(obj.([]string), ",")
+    } else {
+        return obj.(string)
+    }
+}
+
+func prepareRequest(postBody interface{},
+    headerParams map[string]string,
+    queryParams map[string]string,
+    formParams map[string]string,
+    fileName string,
+    fileBytes []byte) *resty.Request {
+
+    request := resty.R()
+
+    request.SetBody(postBody)
+
+    // add header parameter, if any
+    if len(headerParams) > 0 {
+        request.SetHeaders(headerParams)
+    }
+    
+    // add query parameter, if any
+    if len(queryParams) > 0 {
+        request.SetQueryParams(queryParams)
+    }
+
+    // add form parameter, if any
+    if len(formParams) > 0 {
+        request.SetFormData(formParams)
+    }
+    
+    if len(fileBytes) > 0 && fileName != "" {
+        _, fileNm := filepath.Split(fileName)
+        request.SetFileReader("file", fileNm, bytes.NewReader(fileBytes))
+    }
+    return request
+}

modules/swagger-codegen/src/main/resources/go/api_response.mustache

@@ -0,0 +1,24 @@
+package swagger
+
+import (
+  "net/http"
+)
+
+
+type APIResponse struct {
+  *http.Response
+  
+  Message  string  `json:"message,omitempty"`
+}
+
+func NewAPIResponse(r *http.Response) *APIResponse {
+  response := &APIResponse{Response: r}
+
+  return response
+}
+
+func NewAPIResponseWithError(errorMessage string) *APIResponse {
+  response := &APIResponse{Message: errorMessage}
+
+  return response
+}

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

@@ -7,9 +7,9 @@ import (
 type Configuration struct {
     UserName  string  `json:"userName,omitempty"`
     Password  string  `json:"password,omitempty"`
-    ApiKeyPrefix map[string] string `json:"apiKeyPrefix,omitempty"`
-    ApiKey map[string] string  `json:"apiKey,omitempty"`
-    Debug  bool  `json:"debug,omitempty"`
+    APIKeyPrefix map[string] string `json:"APIKeyPrefix,omitempty"`
+    APIKey map[string] string  `json:"APIKey,omitempty"`
+    debug  bool  `json:"debug,omitempty"`
     DebugFile  string  `json:"debugFile,omitempty"`
     OAuthToken  string  `json:"oAuthToken,omitempty"`
     Timeout  int  `json:"timeout,omitempty"`
@@ -19,17 +19,17 @@ type Configuration struct {
     AccessToken string `json:"accessToken,omitempty"`
     DefaultHeader map[string]string `json:"defaultHeader,omitempty"`
     UserAgent string `json:"userAgent,omitempty"`
-    ApiClient ApiClient `json:"apiClient,omitempty"`
+    APIClient APIClient `json:"APIClient,omitempty"`
 }
 
 func NewConfiguration() *Configuration {
     return &Configuration{
         BasePath: "{{basePath}}",
         UserName: "",
-        Debug: false,
+        debug: false,
         DefaultHeader: make(map[string]string),
-        ApiKey: make(map[string]string),
-        ApiKeyPrefix: make(map[string]string),
+        APIKey: make(map[string]string),
+        APIKeyPrefix: make(map[string]string),
         UserAgent: "{{#httpUserAgent}}{{{.}}}{{/httpUserAgent}}{{^httpUserAgent}}Swagger-Codegen/{{{packageVersion}}}/go{{/httpUserAgent}}",
         }
 }
@@ -42,10 +42,18 @@ func (c *Configuration) AddDefaultHeader(key string, value string) {
     c.DefaultHeader[key] = value
 }
 
-func (c *Configuration) GetApiKeyWithPrefix(apiKeyIdentifier string) string {
-    if c.ApiKeyPrefix[apiKeyIdentifier] != ""{
-        return c.ApiKeyPrefix[apiKeyIdentifier] + " " + c.ApiKey[apiKeyIdentifier]
+func (c *Configuration) GetAPIKeyWithPrefix(APIKeyIdentifier string) string {
+    if c.APIKeyPrefix[APIKeyIdentifier] != ""{
+        return c.APIKeyPrefix[APIKeyIdentifier] + " " + c.APIKey[APIKeyIdentifier]
     }
         
-    return c.ApiKey[apiKeyIdentifier]
+    return c.APIKey[APIKeyIdentifier]
+}
+
+func (c *Configuration) SetDebug(enable bool){
+    c.debug = enable
+}
+
+func (c *Configuration) GetDebug() bool {
+    return c.debug
 }

samples/client/petstore/go/go-petstore/README.md

@@ -7,7 +7,7 @@ This API client was generated by the [swagger-codegen](https://github.com/swagge
 
 - API version: 1.0.0
 - Package version: 1.0.0
-- Build date: 2016-04-17T16:17:52.285+08:00
+- Build date: 2016-04-23T17:00:49.475-07:00
 - Build package: class io.swagger.codegen.languages.GoClientCodegen
 
 ## Installation
@@ -46,8 +46,8 @@ Class | Method | HTTP request | Description
 
 ## Documentation For Models
 
- - [ApiResponse](docs/ApiResponse.md)
  - [Category](docs/Category.md)
+ - [ModelApiResponse](docs/ModelApiResponse.md)
  - [Order](docs/Order.md)
  - [Pet](docs/Pet.md)
  - [Tag](docs/Tag.md)
@@ -57,12 +57,6 @@ Class | Method | HTTP request | Description
 ## Documentation For Authorization
 
 
-## api_key
-
-- **Type**: API key 
-- **API key parameter name**: api_key
-- **Location**: HTTP header
-
 ## petstore_auth
 
 - **Type**: OAuth
@@ -72,6 +66,12 @@ Class | Method | HTTP request | Description
  - **write:pets**: modify pets in your account
  - **read:pets**: read your pets
 
+## api_key
+
+- **Type**: API key 
+- **API key parameter name**: api_key
+- **Location**: HTTP header
+
 
 ## Author
 

samples/client/petstore/go/go-petstore/api_client.go

@@ -2,13 +2,18 @@ package swagger
 
 import (
     "strings"
+    "github.com/go-resty/resty"
+    "fmt"
+    "reflect"
+    "bytes"
+    "path/filepath"
 )
 
-type ApiClient struct {
+type APIClient struct {
 
 }
 
-func (c *ApiClient) SelectHeaderContentType(contentTypes []string) string {
+func (c *APIClient) SelectHeaderContentType(contentTypes []string) string {
     if (len(contentTypes) == 0){
         return ""
     }
@@ -19,7 +24,7 @@ func (c *ApiClient) SelectHeaderContentType(contentTypes []string) string {
     return contentTypes[0] // use the first content type specified in 'consumes'
 }
 
-func (c *ApiClient) SelectHeaderAccept(accepts []string) string {
+func (c *APIClient) SelectHeaderAccept(accepts []string) string {
     if (len(accepts) == 0){        
         return ""
     }
@@ -38,4 +43,81 @@ func contains(source []string, containvalue string) bool {
         }
     }
     return false
-}
+}
+
+
+func (c *APIClient) CallAPI(path string, method string,
+    postBody interface{},
+    headerParams map[string]string,
+    queryParams map[string]string,
+    formParams map[string]string,
+    fileName string,
+    fileBytes []byte) (*resty.Response, error) {
+
+    //set debug flag
+    configuration := NewConfiguration()
+    resty.SetDebug(configuration.GetDebug())
+
+    request := prepareRequest(postBody, headerParams, queryParams, formParams,fileName,fileBytes)
+
+    switch strings.ToUpper(method) {
+    case "GET":
+        response, err := request.Get(path)
+        return response, err
+    case "POST":
+        response, err := request.Post(path)
+        return response, err
+    case "PUT":
+        response, err := request.Put(path)
+        return response, err
+    case "PATCH":
+        response, err := request.Patch(path)
+        return response, err
+    case "DELETE":
+        response, err := request.Delete(path)
+        return response, err
+    }
+
+    return nil, fmt.Errorf("invalid method %v", method)
+}
+
+func (c *APIClient) ParameterToString(obj interface{}) string {
+    if reflect.TypeOf(obj).String() == "[]string" {
+        return strings.Join(obj.([]string), ",")
+    } else {
+        return obj.(string)
+    }
+}
+
+func prepareRequest(postBody interface{},
+    headerParams map[string]string,
+    queryParams map[string]string,
+    formParams map[string]string,
+    fileName string,
+    fileBytes []byte) *resty.Request {
+
+    request := resty.R()
+
+    request.SetBody(postBody)
+
+    // add header parameter, if any
+    if len(headerParams) > 0 {
+        request.SetHeaders(headerParams)
+    }
+    
+    // add query parameter, if any
+    if len(queryParams) > 0 {
+        request.SetQueryParams(queryParams)
+    }
+
+    // add form parameter, if any
+    if len(formParams) > 0 {
+        request.SetFormData(formParams)
+    }
+    
+    if len(fileBytes) > 0 && fileName != "" {
+        _, fileNm := filepath.Split(fileName)
+        request.SetFileReader("file", fileNm, bytes.NewReader(fileBytes))
+    }
+    return request
+}

samples/client/petstore/go/go-petstore/api_response.go

@@ -1,14 +1,24 @@
 package swagger
 
 import (
+  "net/http"
 )
 
 
-type ApiResponse struct {
-    
-    Code  int32  `json:"code,omitempty"`
-    
-    Type_  string  `json:"type,omitempty"`
-    
-    Message  string  `json:"message,omitempty"`
+type APIResponse struct {
+  *http.Response
+  
+  Message  string  `json:"message,omitempty"`
 }
+
+func NewAPIResponse(r *http.Response) *APIResponse {
+  response := &APIResponse{Response: r}
+
+  return response
+}
+
+func NewAPIResponseWithError(errorMessage string) *APIResponse {
+  response := &APIResponse{Message: errorMessage}
+
+  return response
+}

samples/client/petstore/go/go-petstore/configuration.go

@@ -7,9 +7,9 @@ import (
 type Configuration struct {
     UserName  string  `json:"userName,omitempty"`
     Password  string  `json:"password,omitempty"`
-    ApiKeyPrefix map[string] string `json:"apiKeyPrefix,omitempty"`
-    ApiKey map[string] string  `json:"apiKey,omitempty"`
-    Debug  bool  `json:"debug,omitempty"`
+    APIKeyPrefix map[string] string `json:"APIKeyPrefix,omitempty"`
+    APIKey map[string] string  `json:"APIKey,omitempty"`
+    debug  bool  `json:"debug,omitempty"`
     DebugFile  string  `json:"debugFile,omitempty"`
     OAuthToken  string  `json:"oAuthToken,omitempty"`
     Timeout  int  `json:"timeout,omitempty"`
@@ -19,17 +19,17 @@ type Configuration struct {
     AccessToken string `json:"accessToken,omitempty"`
     DefaultHeader map[string]string `json:"defaultHeader,omitempty"`
     UserAgent string `json:"userAgent,omitempty"`
-    ApiClient ApiClient `json:"apiClient,omitempty"`
+    APIClient APIClient `json:"APIClient,omitempty"`
 }
 
 func NewConfiguration() *Configuration {
     return &Configuration{
         BasePath: "http://petstore.swagger.io/v2",
         UserName: "",
-        Debug: false,
+        debug: false,
         DefaultHeader: make(map[string]string),
-        ApiKey: make(map[string]string),
-        ApiKeyPrefix: make(map[string]string),
+        APIKey: make(map[string]string),
+        APIKeyPrefix: make(map[string]string),
         UserAgent: "Swagger-Codegen/1.0.0/go",
         }
 }
@@ -42,10 +42,18 @@ func (c *Configuration) AddDefaultHeader(key string, value string) {
     c.DefaultHeader[key] = value
 }
 
-func (c *Configuration) GetApiKeyWithPrefix(apiKeyIdentifier string) string {
-    if c.ApiKeyPrefix[apiKeyIdentifier] != ""{
-        return c.ApiKeyPrefix[apiKeyIdentifier] + " " + c.ApiKey[apiKeyIdentifier]
+func (c *Configuration) GetAPIKeyWithPrefix(APIKeyIdentifier string) string {
+    if c.APIKeyPrefix[APIKeyIdentifier] != ""{
+        return c.APIKeyPrefix[APIKeyIdentifier] + " " + c.APIKey[APIKeyIdentifier]
     }
         
-    return c.ApiKey[apiKeyIdentifier]
+    return c.APIKey[APIKeyIdentifier]
+}
+
+func (c *Configuration) SetDebug(enable bool){
+    c.debug = enable
+}
+
+func (c *Configuration) GetDebug() bool {
+    return c.debug
 }

samples/client/petstore/go/go-petstore/docs/ModelApiResponse.md

@@ -0,0 +1,12 @@
+# ModelApiResponse
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**Code** | **int32** |  | [optional] [default to null]
+**Type_** | **string** |  | [optional] [default to null]
+**Message** | **string** |  | [optional] [default to null]
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
+

samples/client/petstore/go/go-petstore/docs/PetApi.md

@@ -36,7 +36,7 @@ void (empty response body)
 
 [petstore_auth](../README.md#petstore_auth)
 
-### HTTP reuqest headers
+### HTTP request headers
 
  - **Content-Type**: application/json, application/xml
  - **Accept**: application/xml, application/json
@@ -66,7 +66,7 @@ void (empty response body)
 
 [petstore_auth](../README.md#petstore_auth)
 
-### HTTP reuqest headers
+### HTTP request headers
 
  - **Content-Type**: Not defined
  - **Accept**: application/xml, application/json
@@ -95,7 +95,7 @@ Name | Type | Description  | Notes
 
 [petstore_auth](../README.md#petstore_auth)
 
-### HTTP reuqest headers
+### HTTP request headers
 
  - **Content-Type**: Not defined
  - **Accept**: application/xml, application/json
@@ -124,7 +124,7 @@ Name | Type | Description  | Notes
 
 [petstore_auth](../README.md#petstore_auth)
 
-### HTTP reuqest headers
+### HTTP request headers
 
  - **Content-Type**: Not defined
  - **Accept**: application/xml, application/json
@@ -153,7 +153,7 @@ Name | Type | Description  | Notes
 
 [api_key](../README.md#api_key)
 
-### HTTP reuqest headers
+### HTTP request headers
 
  - **Content-Type**: Not defined
  - **Accept**: application/xml, application/json
@@ -182,7 +182,7 @@ void (empty response body)
 
 [petstore_auth](../README.md#petstore_auth)
 
-### HTTP reuqest headers
+### HTTP request headers
 
  - **Content-Type**: application/json, application/xml
  - **Accept**: application/xml, application/json
@@ -213,7 +213,7 @@ void (empty response body)
 
 [petstore_auth](../README.md#petstore_auth)
 
-### HTTP reuqest headers
+### HTTP request headers
 
  - **Content-Type**: application/x-www-form-urlencoded
  - **Accept**: application/xml, application/json
@@ -221,7 +221,7 @@ void (empty response body)
 [[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
 
 # **UploadFile**
-> ApiResponse UploadFile($petId, $additionalMetadata, $file)
+> ModelApiResponse UploadFile($petId, $additionalMetadata, $file)
 
 uploads an image
 
@@ -238,13 +238,13 @@ Name | Type | Description  | Notes
 
 ### Return type
 
-[**ApiResponse**](ApiResponse.md)
+[**ModelApiResponse**](ApiResponse.md)
 
 ### Authorization
 
 [petstore_auth](../README.md#petstore_auth)
 
-### HTTP reuqest headers
+### HTTP request headers
 
  - **Content-Type**: multipart/form-data
  - **Accept**: application/json

samples/client/petstore/go/go-petstore/docs/StoreApi.md

@@ -32,7 +32,7 @@ void (empty response body)
 
 No authorization required
 
-### HTTP reuqest headers
+### HTTP request headers
 
  - **Content-Type**: Not defined
  - **Accept**: application/xml, application/json
@@ -58,7 +58,7 @@ This endpoint does not need any parameter.
 
 [api_key](../README.md#api_key)
 
-### HTTP reuqest headers
+### HTTP request headers
 
  - **Content-Type**: Not defined
  - **Accept**: application/json
@@ -87,7 +87,7 @@ Name | Type | Description  | Notes
 
 No authorization required
 
-### HTTP reuqest headers
+### HTTP request headers
 
  - **Content-Type**: Not defined
  - **Accept**: application/xml, application/json
@@ -116,7 +116,7 @@ Name | Type | Description  | Notes
 
 No authorization required
 
-### HTTP reuqest headers
+### HTTP request headers
 
  - **Content-Type**: Not defined
  - **Accept**: application/xml, application/json

samples/client/petstore/go/go-petstore/docs/UserApi.md

@@ -36,7 +36,7 @@ void (empty response body)
 
 No authorization required
 
-### HTTP reuqest headers
+### HTTP request headers
 
  - **Content-Type**: Not defined
  - **Accept**: application/xml, application/json
@@ -65,7 +65,7 @@ void (empty response body)
 
 No authorization required
 
-### HTTP reuqest headers
+### HTTP request headers
 
  - **Content-Type**: Not defined
  - **Accept**: application/xml, application/json
@@ -94,7 +94,7 @@ void (empty response body)
 
 No authorization required
 
-### HTTP reuqest headers
+### HTTP request headers
 
  - **Content-Type**: Not defined
  - **Accept**: application/xml, application/json
@@ -123,7 +123,7 @@ void (empty response body)
 
 No authorization required
 
-### HTTP reuqest headers
+### HTTP request headers
 
  - **Content-Type**: Not defined
  - **Accept**: application/xml, application/json
@@ -152,7 +152,7 @@ Name | Type | Description  | Notes
 
 No authorization required
 
-### HTTP reuqest headers
+### HTTP request headers
 
  - **Content-Type**: Not defined
  - **Accept**: application/xml, application/json
@@ -182,7 +182,7 @@ Name | Type | Description  | Notes
 
 No authorization required
 
-### HTTP reuqest headers
+### HTTP request headers
 
  - **Content-Type**: Not defined
  - **Accept**: application/xml, application/json
@@ -208,7 +208,7 @@ void (empty response body)
 
 No authorization required
 
-### HTTP reuqest headers
+### HTTP request headers
 
  - **Content-Type**: Not defined
  - **Accept**: application/xml, application/json
@@ -238,7 +238,7 @@ void (empty response body)
 
 No authorization required
 
-### HTTP reuqest headers
+### HTTP request headers
 
  - **Content-Type**: Not defined
  - **Accept**: application/xml, application/json

samples/client/petstore/go/go-petstore/model_api_response.go

@@ -0,0 +1,14 @@
+package swagger
+
+import (
+)
+
+
+type ModelApiResponse struct {
+    
+    Code  int32  `json:"code,omitempty"`
+    
+    Type_  string  `json:"type,omitempty"`
+    
+    Message  string  `json:"message,omitempty"`
+}

samples/client/petstore/go/go-petstore/store_api.go

@@ -5,7 +5,6 @@ import (
     "fmt"
     "encoding/json"
     "errors"
-    "github.com/dghubble/sling"
 )
 
 type StoreApi struct {
@@ -34,159 +33,123 @@ func NewStoreApiWithBasePath(basePath string) *StoreApi{
  * @param orderId ID of the order that needs to be deleted
  * @return void
  */
-func (a StoreApi) DeleteOrder (orderId string) (error) {
-    // verify the required parameter 'orderId' is set
-    if &orderId == nil {
-        return errors.New("Missing required parameter 'orderId' when calling StoreApi->DeleteOrder")
-    }
-    _sling := sling.New().Delete(a.Configuration.BasePath)
+func (a StoreApi) DeleteOrder (orderId string) (APIResponse, error) {
 
-    
-    // create path and map variables
-    path := "/v2/store/order/{orderId}"
-    path = strings.Replace(path, "{" + "orderId" + "}", fmt.Sprintf("%v", orderId), -1)
+  var httpMethod = "Delete"
+ // create path and map variables
+  path := a.Configuration.BasePath + "/store/order/{orderId}"
+ path = strings.Replace(path, "{" + "orderId" + "}", fmt.Sprintf("%v", orderId), -1)
 
-    _sling = _sling.Path(path)
-
-    // add default headers if any
-    for key := range a.Configuration.DefaultHeader {
-      _sling = _sling.Set(key, a.Configuration.DefaultHeader[key])
-    }
-    
-
-    // to determine the Content-Type header
-    localVarHttpContentTypes := []string {
-    }
-    //set Content-Type header
-    localVarHttpContentType := a.Configuration.ApiClient.SelectHeaderContentType(localVarHttpContentTypes)
-    if localVarHttpContentType != "" {    
-      _sling = _sling.Set("Content-Type", localVarHttpContentType)
-    }
-
-    // to determine the Accept header
-    localVarHttpHeaderAccepts := []string {
-        "application/xml", 
-        "application/json", 
-    }
-    //set Accept header
-    localVarHttpHeaderAccept := a.Configuration.ApiClient.SelectHeaderAccept(localVarHttpHeaderAccepts)
-    if localVarHttpHeaderAccept != "" {  
-        _sling = _sling.Set("Accept", localVarHttpHeaderAccept)
-    }
-
-
-
-
-  // We use this map (below) so that any arbitrary error JSON can be handled.
-  // FIXME: This is in the absence of this Go generator honoring the non-2xx
-  // response (error) models, which needs to be implemented at some point.
-  var failurePayload map[string]interface{}
-
-  httpResponse, err := _sling.Receive(nil, &failurePayload)
-
-  if err == nil {
-    // err == nil only means that there wasn't a sub-application-layer error (e.g. no network error)
-    if failurePayload != nil {
-      // If the failurePayload is present, there likely was some kind of non-2xx status
-      // returned (and a JSON payload error present)
-      var str []byte
-      str, err = json.Marshal(failurePayload)
-      if err == nil { // For safety, check for an error marshalling... probably superfluous
-        // This will return the JSON error body as a string
-        err = errors.New(string(str))
-      }
-  } else {
-    // So, there was no network-type error, and nothing in the failure payload,
-    // but we should still check the status code
-    if httpResponse == nil {
-      // This should never happen...
-      err = errors.New("No HTTP Response received.")
-    } else if code := httpResponse.StatusCode; 200 > code || code > 299 {
-        err = errors.New("HTTP Error: " + string(httpResponse.StatusCode))
-      }
-    }
+  // verify the required parameter 'orderId' is set
+  if &orderId == nil {
+      return *NewAPIResponseWithError("400 - Bad Request"), errors.New("Missing required parameter 'orderId' when calling StoreApi->DeleteOrder")
   }
 
-  return err
+  headerParams := make(map[string]string)
+  queryParams := make(map[string]string)
+  formParams := make(map[string]string)
+  var postBody interface{}
+  var fileName string
+  var fileBytes []byte
+
+  
+  // add default headers if any
+  for key := range a.Configuration.DefaultHeader {
+      headerParams[key] = a.Configuration.DefaultHeader[key]
+  }
+  
+
+  // to determine the Content-Type header
+  localVarHttpContentTypes := []string {
+  }
+  //set Content-Type header
+  localVarHttpContentType := a.Configuration.APIClient.SelectHeaderContentType(localVarHttpContentTypes)
+  if localVarHttpContentType != "" {    
+      headerParams["Content-Type"] = localVarHttpContentType
+  }
+  // to determine the Accept header
+  localVarHttpHeaderAccepts := []string {
+      "application/xml", 
+      "application/json", 
+  }
+  //set Accept header
+  localVarHttpHeaderAccept := a.Configuration.APIClient.SelectHeaderAccept(localVarHttpHeaderAccepts)
+  if localVarHttpHeaderAccept != "" {  
+      headerParams["Accept"] = localVarHttpHeaderAccept
+  }
+
+
+
+  httpResponse, err := a.Configuration.APIClient.CallAPI(path, httpMethod, postBody, headerParams, queryParams, formParams, fileName, fileBytes)
+
+
+  if err != nil {
+    return *NewAPIResponse(httpResponse.RawResponse), err
+  }
+
+  return *NewAPIResponse(httpResponse.RawResponse), err
 }
 /**
  * Returns pet inventories by status
  * Returns a map of status codes to quantities
  * @return map[string]int32
  */
-func (a StoreApi) GetInventory () (map[string]int32, error) {
-    _sling := sling.New().Get(a.Configuration.BasePath)
+func (a StoreApi) GetInventory () (map[string]int32, APIResponse, error) {
 
-    // authentication (api_key) required
-    
-    // set key with prefix in header
-    _sling.Set("api_key", a.Configuration.GetApiKeyWithPrefix("api_key"))
-        
+  var httpMethod = "Get"
+ // create path and map variables
+  path := a.Configuration.BasePath + "/store/inventory"
 
-    // create path and map variables
-    path := "/v2/store/inventory"
 
-    _sling = _sling.Path(path)
+  headerParams := make(map[string]string)
+  queryParams := make(map[string]string)
+  formParams := make(map[string]string)
+  var postBody interface{}
+  var fileName string
+  var fileBytes []byte
 
-    // add default headers if any
-    for key := range a.Configuration.DefaultHeader {
-      _sling = _sling.Set(key, a.Configuration.DefaultHeader[key])
-    }
-    
+  // authentication (api_key) required
+  
+  // set key with prefix in header
+  headerParams["api_key"] = a.Configuration.GetAPIKeyWithPrefix("api_key")
+      
 
-    // to determine the Content-Type header
-    localVarHttpContentTypes := []string {
-    }
-    //set Content-Type header
-    localVarHttpContentType := a.Configuration.ApiClient.SelectHeaderContentType(localVarHttpContentTypes)
-    if localVarHttpContentType != "" {    
-      _sling = _sling.Set("Content-Type", localVarHttpContentType)
-    }
+  // add default headers if any
+  for key := range a.Configuration.DefaultHeader {
+      headerParams[key] = a.Configuration.DefaultHeader[key]
+  }
+  
 
-    // to determine the Accept header
-    localVarHttpHeaderAccepts := []string {
-        "application/json", 
-    }
-    //set Accept header
-    localVarHttpHeaderAccept := a.Configuration.ApiClient.SelectHeaderAccept(localVarHttpHeaderAccepts)
-    if localVarHttpHeaderAccept != "" {  
-        _sling = _sling.Set("Accept", localVarHttpHeaderAccept)
-    }
+  // to determine the Content-Type header
+  localVarHttpContentTypes := []string {
+  }
+  //set Content-Type header
+  localVarHttpContentType := a.Configuration.APIClient.SelectHeaderContentType(localVarHttpContentTypes)
+  if localVarHttpContentType != "" {    
+      headerParams["Content-Type"] = localVarHttpContentType
+  }
+  // to determine the Accept header
+  localVarHttpHeaderAccepts := []string {
+      "application/json", 
+  }
+  //set Accept header
+  localVarHttpHeaderAccept := a.Configuration.APIClient.SelectHeaderAccept(localVarHttpHeaderAccepts)
+  if localVarHttpHeaderAccept != "" {  
+      headerParams["Accept"] = localVarHttpHeaderAccept
+  }
 
 
   var successPayload = new(map[string]int32)
+  httpResponse, err := a.Configuration.APIClient.CallAPI(path, httpMethod, postBody, headerParams, queryParams, formParams, fileName, fileBytes)
 
-  // We use this map (below) so that any arbitrary error JSON can be handled.
-  // FIXME: This is in the absence of this Go generator honoring the non-2xx
-  // response (error) models, which needs to be implemented at some point.
-  var failurePayload map[string]interface{}
 
-  httpResponse, err := _sling.Receive(successPayload, &failurePayload)
-
-  if err == nil {
-    // err == nil only means that there wasn't a sub-application-layer error (e.g. no network error)
-    if failurePayload != nil {
-      // If the failurePayload is present, there likely was some kind of non-2xx status
-      // returned (and a JSON payload error present)
-      var str []byte
-      str, err = json.Marshal(failurePayload)
-      if err == nil { // For safety, check for an error marshalling... probably superfluous
-        // This will return the JSON error body as a string
-        err = errors.New(string(str))
-      }
-  } else {
-    // So, there was no network-type error, and nothing in the failure payload,
-    // but we should still check the status code
-    if httpResponse == nil {
-      // This should never happen...
-      err = errors.New("No HTTP Response received.")
-    } else if code := httpResponse.StatusCode; 200 > code || code > 299 {
-        err = errors.New("HTTP Error: " + string(httpResponse.StatusCode))
-      }
-    }
+  if err != nil {
+    return *successPayload, *NewAPIResponse(httpResponse.RawResponse), err
   }
 
-  return *successPayload, err
+  err = json.Unmarshal(httpResponse.Body(), &successPayload)
+
+  return *successPayload, *NewAPIResponse(httpResponse.RawResponse), err
 }
 /**
  * Find purchase order by ID
@@ -194,80 +157,63 @@ func (a StoreApi) GetInventory () (map[string]int32, error) {
  * @param orderId ID of pet that needs to be fetched
  * @return Order
  */
-func (a StoreApi) GetOrderById (orderId int64) (Order, error) {
-    // verify the required parameter 'orderId' is set
-    if &orderId == nil {
-        return *new(Order), errors.New("Missing required parameter 'orderId' when calling StoreApi->GetOrderById")
-    }
-    _sling := sling.New().Get(a.Configuration.BasePath)
+func (a StoreApi) GetOrderById (orderId int64) (Order, APIResponse, error) {
 
-    
-    // create path and map variables
-    path := "/v2/store/order/{orderId}"
-    path = strings.Replace(path, "{" + "orderId" + "}", fmt.Sprintf("%v", orderId), -1)
+  var httpMethod = "Get"
+ // create path and map variables
+  path := a.Configuration.BasePath + "/store/order/{orderId}"
+ path = strings.Replace(path, "{" + "orderId" + "}", fmt.Sprintf("%v", orderId), -1)
 
-    _sling = _sling.Path(path)
+  // verify the required parameter 'orderId' is set
+  if &orderId == nil {
+      return *new(Order), *NewAPIResponseWithError("400 - Bad Request"), errors.New("Missing required parameter 'orderId' when calling StoreApi->GetOrderById")
+  }
 
-    // add default headers if any
-    for key := range a.Configuration.DefaultHeader {
-      _sling = _sling.Set(key, a.Configuration.DefaultHeader[key])
-    }
-    
+  headerParams := make(map[string]string)
+  queryParams := make(map[string]string)
+  formParams := make(map[string]string)
+  var postBody interface{}
+  var fileName string
+  var fileBytes []byte
 
-    // to determine the Content-Type header
-    localVarHttpContentTypes := []string {
-    }
-    //set Content-Type header
-    localVarHttpContentType := a.Configuration.ApiClient.SelectHeaderContentType(localVarHttpContentTypes)
-    if localVarHttpContentType != "" {    
-      _sling = _sling.Set("Content-Type", localVarHttpContentType)
-    }
+  
+  // add default headers if any
+  for key := range a.Configuration.DefaultHeader {
+      headerParams[key] = a.Configuration.DefaultHeader[key]
+  }
+  
 
-    // to determine the Accept header
-    localVarHttpHeaderAccepts := []string {
-        "application/xml", 
-        "application/json", 
-    }
-    //set Accept header
-    localVarHttpHeaderAccept := a.Configuration.ApiClient.SelectHeaderAccept(localVarHttpHeaderAccepts)
-    if localVarHttpHeaderAccept != "" {  
-        _sling = _sling.Set("Accept", localVarHttpHeaderAccept)
-    }
+  // to determine the Content-Type header
+  localVarHttpContentTypes := []string {
+  }
+  //set Content-Type header
+  localVarHttpContentType := a.Configuration.APIClient.SelectHeaderContentType(localVarHttpContentTypes)
+  if localVarHttpContentType != "" {    
+      headerParams["Content-Type"] = localVarHttpContentType
+  }
+  // to determine the Accept header
+  localVarHttpHeaderAccepts := []string {
+      "application/xml", 
+      "application/json", 
+  }
+  //set Accept header
+  localVarHttpHeaderAccept := a.Configuration.APIClient.SelectHeaderAccept(localVarHttpHeaderAccepts)
+  if localVarHttpHeaderAccept != "" {  
+      headerParams["Accept"] = localVarHttpHeaderAccept
+  }
 
 
   var successPayload = new(Order)
+  httpResponse, err := a.Configuration.APIClient.CallAPI(path, httpMethod, postBody, headerParams, queryParams, formParams, fileName, fileBytes)
 
-  // We use this map (below) so that any arbitrary error JSON can be handled.
-  // FIXME: This is in the absence of this Go generator honoring the non-2xx
-  // response (error) models, which needs to be implemented at some point.
-  var failurePayload map[string]interface{}
 
-  httpResponse, err := _sling.Receive(successPayload, &failurePayload)
-
-  if err == nil {
-    // err == nil only means that there wasn't a sub-application-layer error (e.g. no network error)
-    if failurePayload != nil {
-      // If the failurePayload is present, there likely was some kind of non-2xx status
-      // returned (and a JSON payload error present)
-      var str []byte
-      str, err = json.Marshal(failurePayload)
-      if err == nil { // For safety, check for an error marshalling... probably superfluous
-        // This will return the JSON error body as a string
-        err = errors.New(string(str))
-      }
-  } else {
-    // So, there was no network-type error, and nothing in the failure payload,
-    // but we should still check the status code
-    if httpResponse == nil {
-      // This should never happen...
-      err = errors.New("No HTTP Response received.")
-    } else if code := httpResponse.StatusCode; 200 > code || code > 299 {
-        err = errors.New("HTTP Error: " + string(httpResponse.StatusCode))
-      }
-    }
+  if err != nil {
+    return *successPayload, *NewAPIResponse(httpResponse.RawResponse), err
   }
 
-  return *successPayload, err
+  err = json.Unmarshal(httpResponse.Body(), &successPayload)
+
+  return *successPayload, *NewAPIResponse(httpResponse.RawResponse), err
 }
 /**
  * Place an order for a pet
@@ -275,79 +221,62 @@ func (a StoreApi) GetOrderById (orderId int64) (Order, error) {
  * @param body order placed for purchasing the pet
  * @return Order
  */
-func (a StoreApi) PlaceOrder (body Order) (Order, error) {
-    // verify the required parameter 'body' is set
-    if &body == nil {
-        return *new(Order), errors.New("Missing required parameter 'body' when calling StoreApi->PlaceOrder")
-    }
-    _sling := sling.New().Post(a.Configuration.BasePath)
+func (a StoreApi) PlaceOrder (body Order) (Order, APIResponse, error) {
 
-    
-    // create path and map variables
-    path := "/v2/store/order"
+  var httpMethod = "Post"
+ // create path and map variables
+  path := a.Configuration.BasePath + "/store/order"
 
-    _sling = _sling.Path(path)
-
-    // add default headers if any
-    for key := range a.Configuration.DefaultHeader {
-      _sling = _sling.Set(key, a.Configuration.DefaultHeader[key])
-    }
-    
-
-    // to determine the Content-Type header
-    localVarHttpContentTypes := []string {
-    }
-    //set Content-Type header
-    localVarHttpContentType := a.Configuration.ApiClient.SelectHeaderContentType(localVarHttpContentTypes)
-    if localVarHttpContentType != "" {    
-      _sling = _sling.Set("Content-Type", localVarHttpContentType)
-    }
-
-    // to determine the Accept header
-    localVarHttpHeaderAccepts := []string {
-        "application/xml", 
-        "application/json", 
-    }
-    //set Accept header
-    localVarHttpHeaderAccept := a.Configuration.ApiClient.SelectHeaderAccept(localVarHttpHeaderAccepts)
-    if localVarHttpHeaderAccept != "" {  
-        _sling = _sling.Set("Accept", localVarHttpHeaderAccept)
-    }
-
-// body params
-    _sling = _sling.BodyJSON(body)
-
-  var successPayload = new(Order)
-
-  // We use this map (below) so that any arbitrary error JSON can be handled.
-  // FIXME: This is in the absence of this Go generator honoring the non-2xx
-  // response (error) models, which needs to be implemented at some point.
-  var failurePayload map[string]interface{}
-
-  httpResponse, err := _sling.Receive(successPayload, &failurePayload)
-
-  if err == nil {
-    // err == nil only means that there wasn't a sub-application-layer error (e.g. no network error)
-    if failurePayload != nil {
-      // If the failurePayload is present, there likely was some kind of non-2xx status
-      // returned (and a JSON payload error present)
-      var str []byte
-      str, err = json.Marshal(failurePayload)
-      if err == nil { // For safety, check for an error marshalling... probably superfluous
-        // This will return the JSON error body as a string
-        err = errors.New(string(str))
-      }
-  } else {
-    // So, there was no network-type error, and nothing in the failure payload,
-    // but we should still check the status code
-    if httpResponse == nil {
-      // This should never happen...
-      err = errors.New("No HTTP Response received.")
-    } else if code := httpResponse.StatusCode; 200 > code || code > 299 {
-        err = errors.New("HTTP Error: " + string(httpResponse.StatusCode))
-      }
-    }
+  // verify the required parameter 'body' is set
+  if &body == nil {
+      return *new(Order), *NewAPIResponseWithError("400 - Bad Request"), errors.New("Missing required parameter 'body' when calling StoreApi->PlaceOrder")
   }
 
-  return *successPayload, err
+  headerParams := make(map[string]string)
+  queryParams := make(map[string]string)
+  formParams := make(map[string]string)
+  var postBody interface{}
+  var fileName string
+  var fileBytes []byte
+
+  
+  // add default headers if any
+  for key := range a.Configuration.DefaultHeader {
+      headerParams[key] = a.Configuration.DefaultHeader[key]
+  }
+  
+
+  // to determine the Content-Type header
+  localVarHttpContentTypes := []string {
+  }
+  //set Content-Type header
+  localVarHttpContentType := a.Configuration.APIClient.SelectHeaderContentType(localVarHttpContentTypes)
+  if localVarHttpContentType != "" {    
+      headerParams["Content-Type"] = localVarHttpContentType
+  }
+  // to determine the Accept header
+  localVarHttpHeaderAccepts := []string {
+      "application/xml", 
+      "application/json", 
+  }
+  //set Accept header
+  localVarHttpHeaderAccept := a.Configuration.APIClient.SelectHeaderAccept(localVarHttpHeaderAccepts)
+  if localVarHttpHeaderAccept != "" {  
+      headerParams["Accept"] = localVarHttpHeaderAccept
+  }
+
+  // body params
+  postBody = &body
+
+  var successPayload = new(Order)
+  httpResponse, err := a.Configuration.APIClient.CallAPI(path, httpMethod, postBody, headerParams, queryParams, formParams, fileName, fileBytes)
+
+
+  if err != nil {
+    return *successPayload, *NewAPIResponse(httpResponse.RawResponse), err
+  }
+
+  err = json.Unmarshal(httpResponse.Body(), &successPayload)
+
+  return *successPayload, *NewAPIResponse(httpResponse.RawResponse), err
 }

samples/client/petstore/go/pet_api_test.go

@@ -4,6 +4,7 @@ import (
 	sw "./go-petstore"
 	"github.com/stretchr/testify/assert"
 	"testing"
+	"os"
 )
 
 func TestAddPet(t *testing.T) {
@@ -11,19 +12,36 @@ func TestAddPet(t *testing.T) {
 	newPet := (sw.Pet{Id: 12830, Name: "gopher",
 		PhotoUrls: []string{"http://1.com", "http://2.com"}, Status: "pending"})
 
-	err := s.AddPet(newPet)
+	apiResponse, err := s.AddPet(newPet)
 
 	if err != nil {
 		t.Errorf("Error while adding pet")
 		t.Log(err)
 	}
+	if apiResponse.Response.StatusCode != 200 {
+		t.Log(apiResponse.Response)
+	}	
+}
+
+func TestFindPetsByStatusWithMissingParam(t *testing.T) {
+	s := sw.NewPetApi()
+
+	_, apiResponse, err := s.FindPetsByStatus(nil)
+
+	if err != nil {
+		t.Errorf("Error while testing TestFindPetsByStatusWithMissingParam")
+		t.Log(err)
+	}
+	if apiResponse.Response.StatusCode != 200 {
+		t.Log(apiResponse)
+	}	
 }
 
 func TestGetPetById(t *testing.T) {
 	assert := assert.New(t)
 
 	s := sw.NewPetApi()
-	resp, err := s.GetPetById(12830)
+	resp, apiResponse, err := s.GetPetById(12830)
 	if err != nil {
 		t.Errorf("Error while getting pet by id")
 		t.Log(err)
@@ -34,14 +52,83 @@ func TestGetPetById(t *testing.T) {
 
 		//t.Log(resp)
 	}
+	if apiResponse.Response.StatusCode != 200 {
+		t.Log(apiResponse.Response)
+	}	
+}
+
+func TestGetPetByIdWithInvalidID(t *testing.T) {
+	s := sw.NewPetApi()
+	resp, apiResponse, err := s.GetPetById(999999999)
+	if err != nil {
+		t.Errorf("Error while getting pet by invalid id")
+		t.Log(err)
+		t.Log(apiResponse)
+	} else {
+		t.Log(resp)
+	}
+	if apiResponse.Response.StatusCode != 200 {
+		t.Log(apiResponse.Response)
+	}	
 }
 
 func TestUpdatePetWithForm(t *testing.T) {
 	s := sw.NewPetApi()
-	err := s.UpdatePetWithForm(12830, "golang", "available")
+	apiResponse, err := s.UpdatePetWithForm(12830, "golang", "available")
 
 	if err != nil {
 		t.Errorf("Error while updating pet by id")
 		t.Log(err)
+		t.Log(apiResponse)
+	}
+	if apiResponse.Response.StatusCode != 200 {
+		t.Log(apiResponse.Response)
+	}
+}
+
+func TestFindPetsByStatus(t *testing.T) {
+	s := sw.NewPetApi()
+	resp, apiResponse, err := s.FindPetsByStatus([]string {"pending"})
+	if err != nil {
+		t.Errorf("Error while getting pet by id")
+		t.Log(err)
+		t.Log(apiResponse)
+	} else {
+		t.Log(apiResponse)
+		if len(resp) == 0 {
+			t.Errorf("Error no pets returned")
+		}
+
+	if apiResponse.Response.StatusCode != 200 {
+		t.Log(apiResponse.Response)
+	}
+	}
+}
+
+func TestUploadFile(t *testing.T) {
+	s := sw.NewPetApi()
+	file, _ := os.Open("../python/testfiles/foo.png") 
+
+	_, apiResponse, err := s.UploadFile(12830, "golang", file)
+
+	if err != nil {
+		t.Errorf("Error while uploading file")
+		t.Log(err)
+	}
+	if apiResponse.Response.StatusCode != 200 {
+		t.Log(apiResponse.Response)
+	}
+}
+
+func TestDeletePet(t *testing.T) {
+	s := sw.NewPetApi()
+	apiResponse, err := s.DeletePet(12830, "")
+
+	if err != nil {
+		t.Errorf("Error while deleting pet by id")
+		t.Log(err)
+	}
+	if apiResponse.Response.StatusCode != 200 {
+		t.Log(apiResponse.Response)
 	}
 }

samples/client/petstore/go/test.go

@@ -22,7 +22,9 @@ func main() {
 	s.UpdatePetWithForm(12830, "golang", "available")
 
 	// test GET
-	resp, err := s.GetPetById(12830)
-	fmt.Println("GetPetById: ", resp, err)
+	resp, err, apiResponse := s.GetPetById(12830)
+	fmt.Println("GetPetById: ", resp, err, apiResponse)
 
+	err2, apiResponse2 := s.DeletePet(12830, "")
+	fmt.Println("DeletePet: ", err2, apiResponse2)
 }