@parch-js/json-serializer/lib/serializer.js

JSONSerializer for parch to normalize request/response

"use strict";

/**
 * @class JSONSerializer
 * @constructor
 */

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

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var JSONSerializer = function () {
  function JSONSerializer() {
    _classCallCheck(this, JSONSerializer);
  }

  _createClass(JSONSerializer, [{
    key: "normalizeArrayResponse",

    /**
     * Returns an array of Sequelize instances
     *
     * @method normalizeArrayResponse
     * @param {Array} instances Sequelize instances
     * @return {Promise}<Object, Error>
     *
     * @example
     * ```javascript
     * return orm.findAll("user").then(users => {
     *   return serializer.normalizeArrayResponse(instances);
     * }).then(response => {
     *   /**
     *    * [{
     *    *   firstName: "foo",
     *    *   lastName; "bar"
     *    * }]
     * });
     * ```
     */
    value: function normalizeArrayResponse(instances) {
      return Promise.resolve(instances);
    }

    /**
     * Takes one or several Sequelize intances and returns them.
     *
     * @method normalizeResponse
     * @param {Object} instance
     * @param {String} method
     * @return {Promise}<Object, Error>
     *
     * @example
     * ```javascript
     * return orm.findOne("user", 1).then(user => {
     *   return serializer.normalizeResponse(user, "findOne");
     * }).then(response => {
     *   /**
     *    * {
     *    *   firstName: "foo",
     *    *   lastName; "bar"
     *    * }
     * })
     *
     * return orm.findAll("user").then(users => {
     *   return serializer.normalizeResponse(users, "findAll");
     * }).then(response => {
     *   /**
     *    * [{
     *    *   firstName: "foo",
     *    *   lastName: "bar"
     *    * }]
     * });
     * ```
     */

  }, {
    key: "normalizeResponse",
    value: function normalizeResponse(instance, method, fallbackName) {
      switch (method) {
        case "createRecord":
        case "findOne":
        case "queryRecord":
        case "updateRecord":
          return this.normalizeSingularResponse(instance, fallbackName);
        case "findAll":
          return this.normalizeArrayResponse(instance, fallbackName);
        default:
          return this.normalizeSingularResponse(instance, fallbackName);
      }
    }

    /**
     * Returns a single sequelize instance
     *
     * @method normalizeSingularResponse
     * @param {Object} instance Sequelize model instance
     * @return {Promise}<Object, Error>
     *
     * @example
     * ```javascript
     * return orm.findOne("user", 1).then(user => {
     *   return serializer.normalizeSingularResponse(instance, "findOne");
     * }).then(response => {
     *   /**
     *    * {
     *    *   firstName: "foo",
     *    *   lastName; "bar"
     *    * }
     * });
     * ```
     */

  }, {
    key: "normalizeSingularResponse",
    value: function normalizeSingularResponse(instance) {
      return Promise.resolve(instance);
    }
  }]);

  return JSONSerializer;
}();

exports.default = JSONSerializer;
module.exports = exports["default"];