handle err

httpclient.go

@@ -84,6 +84,10 @@ func (hc *httpClient) Send(requestURL string, method string, header map[string]s
 	default:
 		return nil, errors.New(method + " is not invalid")
 	}
+	if nil != err {
+		return nil, errors.New(" request send fail : " + err.Error())
+	}
+
 	if response.StatusCode != http.StatusOK {
 		return nil, fmt.Errorf("%v : %v", response.StatusCode, response.Status)
 	}