app/assets/javascripts/lib/utils/simple_poll.js


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export default (fn, interval = 2000, timeout = 60000) => {
  const startTime = Date.now();

  return new Promise((resolve, reject) => {
    const stop = arg => ((arg instanceof Error) ? reject(arg) : resolve(arg));
    const next = () => {
      if (Date.now() - startTime < timeout) {
        setTimeout(fn.bind(null, next, stop), interval);
      } else {
        reject(new Error('SIMPLE_POLL_TIMEOUT'));
      }
    };
    fn(next, stop);
  });
};