/webhook relative link not working to serve GET

[LeeWarnock]

Could not verify webhook with Facebook, getting a 404 error with the file structure in Master: Cannot GET /

I copied your file structure, but had to change line 22 to start serving webhook,js, changing '/webhook' to '/' I think because webhook is in root and my relative link was wrong when I copied the Master branch code. I'm on a windows machine.

My working code:

/* For Facebook Validation */
//Replace the'/' below with proper relative link or absolute link if serving fron the internet
app.get('/', (req, res) => {
  if (req.query['hub.mode'] && req.query['hub.verify_token'] === 'tuxedo_cat') {
    res.status(200).send(req.query['hub.challenge']);
  } else {
    res.status(403).end();
  }
});

/* Handling all messenges */
//Replace the'/' below with proper relative link or absolute link if serving fron the internet
app.post('/', (req, res) => {
  console.log(req.body);
  if (req.body.object === 'page') {
    req.body.entry.forEach((entry) => {
      entry.messaging.forEach((event) => {
        if (event.message && event.message.text) {
          sendMessage(event);
        }
      });
    });
    res.status(200).end();
  }
});