How to create an application using the Monzo Bank API

index-snippet2.js

app.get('/oauth/callback', (req, res) => {
  const { client_id, client_secret, redirect_uri } = oauthDetails;
  const { code } = req.query;
  const monzoAuthUrl = `https://api.monzo.com/oauth2/token`;
  
  // Initiate request to retrieve access token
  request.post({
    url: monzoAuthUrl,
    form: {
      grant_type: 'authorization_code',
      client_id,
      client_secret,
      redirect_uri,
      code
    } 
  }, (err, response, body) => {
    accessToken = JSON.parse(body); // Populate accessToken variable with token response
    res.redirect('/accounts'); // Send user to their accounts
  });
});