change RP interfaces

pkg/utils/http.go

@@ -25,17 +25,24 @@ type Encoder interface {
 	Encode(src interface{}, dst map[string][]string) error
 }
 
-func FormRequest(endpoint string, request interface{}) (*http.Request, error) {
+func FormRequest(endpoint string, request interface{}, clientID, clientSecret string, header bool) (*http.Request, error) {
 	form := make(map[string][]string)
 	encoder := schema.NewEncoder()
 	if err := encoder.Encode(request, form); err != nil {
 		return nil, err
 	}
+	if !header {
+		form["client_id"] = []string{clientID}
+		form["client_secret"] = []string{clientSecret}
+	}
 	body := strings.NewReader(url.Values(form).Encode())
 	req, err := http.NewRequest("POST", endpoint, body)
 	if err != nil {
 		return nil, err
 	}
+	if header {
+		req.SetBasicAuth(clientID, clientSecret)
+	}
 	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
 	return req, nil
 }