text: const verifyWebhook = (req, res) => {
    let VERIFY_TOKEN = 'ash-is-cool';
  
    let mode = req.query['hub.mode'];
    let token = req.query['hub.verify_token'];
    let challenge = req.query['hub.challenge'];
  
    if (mode && token === VERIFY_TOKEN) {
      res.status(200).send(challenge);
    } else {
      res.sendStatus(403);
    }
  };
  
  module.exports = verifyWebhook;
  