Function DecodeWithError

util/error.go:44–70

DecodeWithError 将返回值按照解析

(response []byte, obj interface{}, apiName string)

// DecodeWithError 将返回值按照解析
func DecodeWithError(response []byte, obj interface{}, apiName string) error {
	err := json.Unmarshal(response, obj)
	if err != nil {
		return fmt.Errorf("json Unmarshal Error, err=%v", err)
	}
	responseObj := reflect.ValueOf(obj)
	if !responseObj.IsValid() {
		return fmt.Errorf("obj is invalid")
	}
	commonError := responseObj.Elem().FieldByName("CommonError")
	if !commonError.IsValid() || commonError.Kind() != reflect.Struct {
		return fmt.Errorf("commonError is invalid or not struct")
	}
	errCode := commonError.FieldByName("ErrCode")
	errMsg := commonError.FieldByName("ErrMsg")
	if !errCode.IsValid() || !errMsg.IsValid() {
		return fmt.Errorf("errcode or errmsg is invalid")
	}
	if errCode.Int() != 0 {
		return &CommonError{
			apiName: apiName,
			ErrCode: errCode.Int(),
			ErrMsg:  errMsg.String(),
		}
	}
	return nil
}

// HandleFileResponse 通用处理微信等接口返回：有时 JSON 错误，有时文件内容
func HandleFileResponse(response []byte, apiName string) ([]byte, error) {