cc-zos/lib/utils/async.js

Command-line interface for the ZeppelinOS smart contract platform

'use strict';

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

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

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

async function allPromisesOrError(promisesWithObjects, toErrorMessage) {
  const failures = [];
  const handlingFailure = async item => {
    let promise,
        object = null;
    try {
      if (_lodash2.default.isArray(item)) {
        [promise, object] = item;
      } else {
        promise = item;
      }
      return await promise;
    } catch (error) {
      failures.push([error, object]);
      return null;
    }
  };

  const results = await Promise.all(_lodash2.default.map(promisesWithObjects, handlingFailure));

  if (!_lodash2.default.isEmpty(failures)) {
    const message = failures.map(([err, obj]) => toErrorMessage ? toErrorMessage(err, obj) : err.message || err).join('\n');
    throw Error(message);
  }

  return results;
}