Passport.js - Error: failed to serialize user into session
It looks like you didn't implement passport.serializeUser and passport.deserializeUser. Try adding this:
passport.serializeUser(function(user, done) { done(null, user);});passport.deserializeUser(function(user, done) { done(null, user);});
If you decide not to use sessions, you could set the session to false
app.post('/login', passport.authenticate('local', { successRedirect: '/accessed', failureRedirect: '/access', session: false}));
Sounds like you missed a part of the passportjs setup, specifically these two methods:
passport.serializeUser(function(user, done) { done(null, user._id); // if you use Model.id as your idAttribute maybe you'd want // done(null, user.id);});passport.deserializeUser(function(id, done) { User.findById(id, function(err, user) { done(err, user); });});I added the bit about ._id vs. .id but this snippet is from the Configure Section of docs, give that another read and good luck :)