stratumn-cli/src/utils/poll.js

CLI tools for Stratumn

import get from '../utils/get';

function delay(fn, time = 1000) {
  return new Promise((resolve, reject) => {
    setTimeout(() => {
      fn().then(resolve).catch(reject);
    }, time);
  });
}

export default function poll(appName, willDestroy) {
  return get('/applications/' + appName, true)
    .then(app => {
      if (app.job.state === 'QUEUED') {
        process.stdout.write('.');
        return delay(() => poll(appName));
      }
      process.stdout.write('\n' + app.job.state);
    })
    .catch(err => {
      if (willDestroy && err.message === 'Not found') {
        process.stdout.write('\nCOMPLETE');
        return;
      }

      throw err;
    });
}