passport-facebook login does not persist

Question

I am using the standard example from here which contains:

app.get('/login/facebook',
  passport.authenticate('facebook'));

app.get('/login/facebook/return', 
  passport.authenticate('facebook', { failureRedirect: '/login' }),
  function(req, res) {     //req.user is populated
    res.redirect('/');
  });

app.get('/', function (req, res) {
    res.render('index.jade', { user: req.user });   //req.user is undefined
});

The login appears to work fine. In /login/facebook/return I could see req.user and its details. But after getting redirected to /, req.user becomes undefined.

Is there anything else I must add to make it work?

Answer 1

According to Passportjs Documentations, passport.initialize() and passport.session() (for persistent logins) middlewares should be added to the app after express-session.

From the docs:

Note that enabling session support is entirely optional, though it is recommended for most applications. If enabled, be sure to use express.session() before passport.session() to ensure that the login session is restored in the correct order.

app.configure(function() {
  app.use(express.static('public'));
  app.use(express.cookieParser());
  app.use(express.bodyParser());
  app.use(express.session({ secret: 'keyboard cat' }));
  app.use(passport.initialize());
  app.use(passport.session());
  app.use(app.router);
});