microservice-support-toolkit/lib/core/response.js

A global module with commons utilities for microservice support

class ResponseError {
  constructor({ status = 500, message } = {}) {
    this.status = status;
    this.message = message;
  }
};

const sendResponse = (res, { status = 200, message, data } = {}) => (
  res.status(status).send({
    status,
    message: message || getDefaultMessage(status),
    data
  })
);

const sendError = (res, { status = 500, message, data } = {}) => (
  sendResponse(res, { status, message, data })
);

const getDefaultMessage = status => {
  switch (status) {
    case 200: return 'Success';
    case 204: return 'No Content';

    case 400: return 'Bad Request';
    case 401: return 'Unauthorized';
    case 404: return 'Requested resource could not be found';
    case 409: return 'Requested operation could not be fulfilled';
    case 410: return 'Gone';
    case 422: return 'Mandatory parameters were not supplied';

    case 500: return 'Internal Server Error';
    case 503: return 'Service Unavailable';
    default: return 'Default';
  }
};

module.exports = {
  ResponseError,
  sendResponse,
  sendError
};