Passport-facebook doesn't get email [duplicate]

Question

I have already implemented the Facebook-LogIn in my website with express js and passport-Facebook. It works well (I get field profile), but the problem is that I don't get the Email. I get an error:

email   : profile.emails[0].value,

TypeError: Cannot read property '0' of undefined

My code:

passport.use('facebook',new FacebookStrategy({
        clientID            : config.facebook.id,
        clientSecret    : config.facebook.secret,
        callbackURL  : '/auth/facebook/callback',
        profileFields : ['id', 'displayName', 'emails','photos']
    }, function(accessToken, refreshToken, profile, done) {

        User.findOne({provider_id: profile.id}, function(err, user) {
            if(err) throw(err);
            if(!err && user!= null) return done(null, user);

            var user = new User({
                provider_id : profile.id,
                name                 : profile.displayName,
                email               : profile.emails[0].value,
                photo               : profile.photos[0].value,
            });
            user.save(function(err) {
                if(err) throw err;
                return done(null, user);
            });
        });
    }));

It would be great if someone could help me with the solution to my problem :)

Trover

have you tried logging the profile object to see what it contains? – Gayn

i tried it now. Profile contains no emails... – Trover

what happens if you don't use profileFields parameter? – Gayn

i have more information. but no email – Trover

maybe the user's email hasn't been verified? – Gayn

maybe this question will help – Gayn

perfect, adding 'scope' work, sorry but I could not find any answers. thank you very much – Trover

Please upvote the answer in the other question if it helped you. We can then merge both questions as they seem to be duplicates. – Gayn

I am having the exact same problem. Facebook login works for all of our testers apart from one. For some reason, one profile does not return an email. Going to the users profile on Facebook shows that they have two emails registered: a facebook.com one and a gmail.com one, but they are not returned when trying to log in with PassportJS. Can't figure out why. – Fabulist

Answer 1

I had the same problem. We had 10 test users, all 10 had email addresses associated with their Facebook account. But for one of the 10 testers, Facebook did not return the 'email' JSON property in the profile response. I have no idea why, since it looked identical to other Facebook profiles that worked fine.

The fix was to change this line:

passport.authenticate('facebook')

To this:

passport.authenticate('facebook', { scope: [ 'email' ] })

I still can't explain why it worked for 9/10, but not for one. Either way, it's fixed now :-)

Fabulist

Same as this: #22881376 – Fabulist

Had same problem this helped: #20291857 – Elastin

Ask that one tester to remove this app from his Facebook account. and then try again. it will work – Quadrat

Answer 2

Try this passport.authenticate('facebook', { scope: [ 'email' ] })

Also add a new field profileFields: [ 'email' , 'name' ] in the facebookStrategy

Omegaomelet

please write more neat answer that is understood by community. – Heuser

Thanks for your kind suggestion. As I am a new to stackoverflow, I am not familiar to the way of answering. Next time I will try my best. – Omegaomelet

Answer 3

  passport.use(new FacebookStrategy({
    clientID: config.facebook.clientID,
    clientSecret: config.facebook.clientSecret,
    callbackURL: config.facebook.callbackURL,
    passReqToCallback:true
  },

Intravasation

a short explanation of the answer would be useful to the OP – Applique