const passport = require('passport'); var userProfile; app.use(passport.initialize()); app.use(passport.session()); app.set('view engine', 'ejs'); app.get('/success', (req, res) => res.send(userProfile)); app.get('/error', (req, res) => res.send("error logging in")); passport.serializeUser(function(user, cb) { cb(null, user); }); passport.deserializeUser(function(obj, cb) { cb(null, obj); });