Update

backend/app/config/response.config.js

@@ -0,0 +1,9 @@
+function sendMessage (res, successCode, data) {
+  return res.status(200).json({ status: 'success', successCode: successCode, data: data });
+}
+
+function sendError (res, statusCode, errorCode, reason) {
+  return res.status(statusCode).json({ status: 'error', errorCode: errorCode, reason: reason });
+}
+
+module.exports = { sendMessage, sendError };