blips/es/utils/promiseBatch.js

State management for the GraphQL heads

import { mergeResponseList } from './mergeResponseList';

export function promiseBatch(promises) {
  return new Promise(function (resolve) {
    var mockedPromises = [];

    var _loop = function _loop() {
      if (_isArray) {
        if (_i >= _iterator.length) return 'break';
        _ref = _iterator[_i++];
      } else {
        _i = _iterator.next();
        if (_i.done) return 'break';
        _ref = _i.value;
      }

      var promise = _ref;

      mockedPromises.push(new Promise(function (resolve) {
        promise.then(function (res) {
          return resolve(res);
        }, function (err) {
          return resolve({ errors: [err] });
        });
      }));
    };

    for (var _iterator = promises, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
      var _ref;

      var _ret = _loop();

      if (_ret === 'break') break;
    }
    Promise.all(mockedPromises).then(function (res) {
      resolve(mergeResponseList(res));
    });
  });
}