issue #2535, added authentication header for GO

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

@@ -43,6 +43,21 @@ func (a {{classname}}) {{nickname}} ({{#allParams}}{{paramName}} {{{dataType}}}{
 
     _sling := sling.New().{{httpMethod}}(a.Configuration.BasePath)
 
+    {{#authMethods}}// authentication ({{name}}) required
+    {{#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)

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

@@ -1,11 +1,12 @@
 package {{packageName}}
 
 import (
-
+    "encoding/base64"
 )
 
 type Configuration struct {
     UserName  string  `json:"userName,omitempty"`
+    Password  string  `json:"password,omitempty"`
     ApiKey  string  `json:"apiKey,omitempty"`
     Debug  bool  `json:"debug,omitempty"`
     DebugFile  string  `json:"debugFile,omitempty"`
@@ -14,6 +15,7 @@ type Configuration struct {
     BasePath  string  `json:"basePath,omitempty"`
     Host  string  `json:"host,omitempty"`
     Scheme  string  `json:"scheme,omitempty"`
+    AccessToken string `json:"accessToken,omitempty"`
 }
 
 func NewConfiguration() *Configuration {
@@ -22,4 +24,8 @@ func NewConfiguration() *Configuration {
         UserName: "",
         Debug: false,
         }
+}
+
+func (c *Configuration) GetBasicAuthEncodedString() string {
+    return base64.StdEncoding.EncodeToString([]byte(c.UserName  + ":" + c.Password))
 }