retry-promise/lib/index.js

Small utility function that automatically retries Promises.

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
var retry = function retry() {
  var opts = arguments.length <= 0 || arguments[0] === undefined ? {} : arguments[0];
  var getPromise = arguments[1];

  if (typeof opts === 'function') {
    return retry({}, opts);
  }

  opts.max = opts.max || 10;
  opts.backoff = opts.backoff || 1000;

  return new Promise(function (resolve, reject) {
    var attempt = function attempt(i) {
      getPromise(i).then(resolve).catch(function (err) {
        if (i >= opts.max) {
          return reject(err);
        }
        setTimeout(function () {
          return attempt(i + 1);
        }, i * opts.backoff);
      });
    };
    attempt(1);
  });
};

exports.default = retry;