@okta-dfuhriman/okta-auth-js/samples/generated/express-embedded-auth-with-sdk/web-server/assets/js/poll.js

The Okta Auth SDK

function poll(url, refresh) {
  setTimeout(function () {
    fetch(url, {
      method: 'POST'
    }).then(response => {
      if (response.ok) {
        return response.json();
      } else {
        console.error('Poll request failed: ', response.statusText);
      }
    })
    .then(nextStep => {
      if (nextStep.poll) {
        poll(url, nextStep.poll.refresh);
      } else {
        window.location.href = nextStep.nextRoute;
      }
    });
  }, refresh);
}