add backend tpl

backend_v1/pkg/wechat/response.go

@@ -0,0 +1,16 @@
+package wechat
+
+type Response struct {
+	ErrCode     int `json:"errcode"`
+	ErrMsg      int `json:"errmsg"`
+	ErrDescribe int `json:"-"`
+}
+
+func (r *Response) Error() error {
+	return translateError(r.ErrCode)
+}
+
+type AccessTokenResponse struct {
+	AccessToken string `json:"access_token"`
+	ExpiresIn   int    `json:"expires_in"` // seconds
+}