Récupération de la photo de Facebook à l'aide de Passport-Facebook

Question

Je suis capable de récupérer des informations de base des utilisateurs via Passport-Facebook, en suivant le code ci-dessous et enregistrez-la dans 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);
}));};

Cependant, je ne suis pas capable de voir la photo de profil dans le "profil".

la documentation https://github.com/jaredhanson/passport-facebook dit de récupérer des photos que nous devons passerles propriétés de profil comme ci-dessous.Mais ce faisant, je suis capable de voir l'URL de la photo mais de perdre d'autres données contenues dans _json par exemple.Profil._json.location.nom. Nom.Comment puis-je récupérer la photo avec d'autres informations utilisateur intactes?

passport.use(new FacebookStrategy({
// clientID, clientSecret and callbackURL
profileFields: ['id', 'displayName', 'photos', ....]},// verify callback));

Answer 1

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 2

Si vous avez besoin d'une image plus grande (par défaut dans l'exemple de Miksii ci-dessus, 50px x 50px qui est assez petit), puis utilisez:

profileFields: ['id', 'displayName', 'name', 'gender', 'picture.type(large)']

et ensuite

picture: profile.photos ? profile.photos[0].value : '/img/faces/unknown-user-pic.jpg'

Ceci renvoie une image de profil de 200px x 200px pour cet utilisateur.

Answer 3

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 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}`
  //
}))