devour-client/lib/middleware/json-api/res-deserialize.js

A lightweight, framework agnostic, flexible JSON API client

"use strict";

var deserialize = require('./_deserialize');

var _isArray = require('lodash/isArray');

function needsDeserialization(method) {
  return ['GET', 'PATCH', 'POST'].indexOf(method) !== -1;
}

function isCollection(responseData) {
  return _isArray(responseData);
}

module.exports = {
  name: 'response',
  res: function res(payload) {
    /*
     *   Note: The axios ajax response attaches the actual response data to
     *         `res.data`. JSON API Resources also passes back the response with
     *         a `data` attribute. This means we have `res.data.data`.
     */
    var jsonApi = payload.jsonApi;
    var status = payload.res.status;
    var req = payload.req;
    var res = payload.res.data;
    var errors = res.errors;
    var meta = res.meta;
    var links = res.links;
    var included = res.included;
    var data = null;

    if (status !== 204 && needsDeserialization(req.method)) {
      if (isCollection(res.data)) {
        data = deserialize.collection.call(jsonApi, res.data, included);
      } else if (res.data) {
        data = deserialize.resource.call(jsonApi, res.data, included);
      }

      deserialize.cache.clear();
    }

    if (res.data && data) {
      var params = ['meta', 'links'];
      params.forEach(function (param) {
        if (res.data[param]) {
          data[param] = res.data[param];
        }
      });
    }

    return {
      data: data,
      errors: errors,
      meta: meta,
      links: links,
      document: res
    };
  }
};