//All the necessary imports

const googleConfig = new GoogleStrategy(
{
  clientID: process.env.GOOGLE_CLIENT_ID,
  clientSecret: process.env.GOOGLE_CLIENT_SECRET,
  callbackURL: '/auth/google/callback'
},
(accessToken, refreshToken, profile, done) => {
 //set the profile to req object in the form of req.object
 }
);

passport.use(googleConfig);

app.use('/auth', passport.authenticate('google', {
 scope: ['profile']
}));  // Here I want to put anoter middleware that will take care of saving
         the data in the database but I do not know how to access the data

app.use('/auth/google/callback', passport.authenticate('google'),
(req, res) => {
 res.send('You are loggedIn');
});