Passport.js成功认证完全不调用

Question

Here is My code :

passport.use(new localStrategy(
    function(username, password, done) {
        User.findOne({
            username: username
        }, function(err, user) {
            if (err) throw err;
            if (!user) {
                console.log("Unknown User");
                return done(null, false, {
                    message: "Unknown User"
                })
            }
            if (!user.validPassword(password)) {
                console.log("Incorrect password.", password);
                return done(null, false, {
                    message: 'Incorrect password.'
                });
            }

            console.log("User Is detected");
            return done(null, user, {
                message: "User Is detected"

            })

        });
    }
));


router.post('/login',
    passport.authenticate('local', {
        successRedirect: '/',
        failureRedirect: '/users/login',
        failureFlash: true,
        successFlash: 'Welcome!'
    }),
    function(req, res) { // this function not called
        console.log(req)
    });

everything works perfectly , but success function not calling and i want to have this message : "welcome"+req.body.username after logged in .

Any Advice ? thx

Answer 1

From the documentation of passport.authenticate() :

the redirect options override the default behavior

In your example, because you set the successRedirect option, the next function in the middleware chain will not be invoked upon successful authentication.

If you want to your function to be invoked before redirecting to '/' , then you should:

router.post('/login',
    passport.authenticate('local', {
        failureRedirect: '/users/login',
        failureFlash: true
    }),
    function(req, res) {
        // This should show up in your logs:
        console.log('Welcome ' + req.body.username);

        // You can also use a flash to consume after redirect:
        // (provided that you use connect-flash in your app)
        req.flash('info', 'Welcome ' + req.body.username);

        res.redirect('/');
    }
);