Retrieving photo from Facebook using passport-facebook - node.js

Question

I am able to retrieve basic user information via passport-facebook, following the below code and saving in mongodb:
app.get("/auth/facebook", passport.authenticate("facebook", { scope : ["email", "publish_stream", "user_location", "user_hometown", "user_birthday", "read_friendlists"]}));
app.get("/auth/facebook/callback", passport.authenticate("facebook",{ successRedirect: '/', failureRedirect: '/'}));
var mongoose = require('mongoose'),
FacebookStrategy = require('passport-facebook').Strategy,
Users = mongoose.model('Users');
module.exports = function (passport, config) {
passport.serializeUser(function(user, done) {
done(null, user.id);
});
passport.deserializeUser(function(id, done) {
Users.findOne({ _id: id }, function (err, user) {
done(err, user);
});
});
passport.use(new FacebookStrategy({
clientID: config.facebook.clientID,
clientSecret: config.facebook.clientSecret,
callbackURL: config.facebook.callbackURL
}, function(accessToken, refreshToken, profile, done) {
Users.findOrCreateFaceBookUser(profile, done);
}));};
However, I am not able to see the profile picture in the "profile".
The documentation https://github.com/jaredhanson/passport-facebook says to retrieve photos we need to pass the profileFields as below. But doing so, I am able to see the photo URL but loosing other data which were contained in _json e.g. profile._json.location.name. How can I retrieve photo with other user information intact?
passport.use(new FacebookStrategy({
// clientID, clientSecret and callbackURL
profileFields: ['id', 'displayName', 'photos', ....]},// verify callback));

Answer 1

If you need a larger image (default in miksii's example above is 50px x 50px which is pretty small), then use:
profileFields: ['id', 'displayName', 'name', 'gender', 'picture.type(large)']
and then
picture: profile.photos ? profile.photos[0].value : '/img/faces/unknown-user-pic.jpg'
This will return a 200px x 200px profile picture for that user.

Answer 2

In addition to answer of your question - you don't have to do it that way. As you mentioned you can define the required attributes for Facebook profile:
clientID: "...",
clientSecret: "...",
callbackURL: "...",
profileFields: ['id', 'displayName', 'name', 'gender', ..., 'photos']
What than you can do is just simply grab the value of the given attribute. Let's say you want to make an attribute that will hold this value:
picture: profile.photos ? profile.photos[0].value : '/img/faces/unknown-user-pic.jpg'
This proved to be a better solution since some users or sometimes the value of username may be undefined.
I hope you find this useful too,
Thank you.

Answer 3

Yes, the picture can be accessed via the graph api using the access token like this. "graph.facebook.com/"; + profile.username + "/picture" + "?width=200&height=200" + "&access_token=" + accessToken; There is no need to use the profile fields.

Answer 4

As this answer, it will be work better with this code.
passport.use(new FacebookStrategy({
clientID: FACEBOOK_APP_ID,
clientSecret: FACEBOOK_APP_SECRET,
callbackURL: FACEBOOK_APP_CALLBACK,
profileFields: ['id', 'displayName', 'picture.type(large)', 'email', 'birthday', 'friends', 'first_name', 'last_name', 'middle_name', 'gender', 'link']
}, (accessToken, refreshToken, profile, cb) => {
const picture = `https://graph.facebook.com/${profile.id}/picture?width=200&height=200&access_token=${accessToken}`
//
}))

Answer 5

2020 solution
Get users accessToken from passportjs passport-facebook strategy. Use this token to get json with a url for an users avatar:
https://graph.facebook.com/me/picture?access_token=${accessToken}&&redirect=false