const { getStatus } = require('poll-pr-status');

let status = await getStatus({
  context: 'netlify/your-app-name/deploy-preview'
});

let url = status ? status.target_url : 'https://your-app-name.netlify.com';

await getStatus({
  // required
  context: 'your status identifier',

  // optional
  repository: 'https://github.com/you/your-app-name.git',

  // optional
  commit: '45a2ccf3e57a83247bc03fbdd03569cfca1ed4f7',

  // optional
  interval: 1000
});