express-humps/dist/index.js

A middleware which can camelize the request body and decamelize the response through json method.

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

exports.default = createMiddleware;

var _humps = require('humps');

var _humps2 = _interopRequireDefault(_humps);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/**
 * create a middleware to change json format from snake case to camelcase in request
 * then change back to snake case in response
 *
 * @param {Object} options - humps options
 */
function createMiddleware(options) {
  return function (req, res, next) {
    /**
     * camelize req.body
     */
    if (req.body && _typeof(req.body) === 'object') {
      req.body = _humps2.default.camelizeKeys(req.body, options);
    }

    /**
     * camelize req.query
     */
    if (req.query && _typeof(req.query) === 'object') {
      req.query = _humps2.default.camelizeKeys(req.query, options);
    }

    /**
     * wrap res.json()
     */
    var sendJson = res.json;
    res.json = function (data) {
      return sendJson.call(res, _humps2.default.decamelizeKeys(data, options));
    };

    return next();
  };
}