blog_url-shortener_router-post.js

router.post('/new-link', requireAuthentication, (req, res) => {
  let { expandedUrl, customName } = req.body;
  if(!/^https?:\/\//.test(expandedUrl)) expandedUrl = "http://" + expandedUrl; // add `http://` if not already provided, for consistency.
  tryLink()
    .then(result => { 
    res.redirect('/dashboard?success=' + JSON.stringify(result));
  })
    .catch( err => {
    if(err.nick) res.render('error', {err} );
    else res.redirect('/error?code=1');
  })
});