Added infrastructure for basic WebSocket API (#3432)

model/utils.go

@@ -34,12 +34,12 @@ type EncryptStringMap map[string]string
 
 type AppError struct {
 	Id            string                 `json:"id"`
-	Message       string                 `json:"message"`        // Message to be display to the end user without debugging information
-	DetailedError string                 `json:"detailed_error"` // Internal error string to help the developer
-	RequestId     string                 `json:"request_id"`     // The RequestId that's also set in the header
-	StatusCode    int                    `json:"status_code"`    // The http status code
-	Where         string                 `json:"-"`              // The function where it happened in the form of Struct.Func
-	IsOAuth       bool                   `json:"is_oauth"`       // Whether the error is OAuth specific
+	Message       string                 `json:"message"`               // Message to be display to the end user without debugging information
+	DetailedError string                 `json:"detailed_error"`        // Internal error string to help the developer
+	RequestId     string                 `json:"request_id,omitempty"`  // The RequestId that's also set in the header
+	StatusCode    int                    `json:"status_code,omitempty"` // The http status code
+	Where         string                 `json:"-"`                     // The function where it happened in the form of Struct.Func
+	IsOAuth       bool                   `json:"is_oauth,omitempty"`    // Whether the error is OAuth specific
 	params        map[string]interface{} `json:"-"`
 }