Building OAuth Strategies with passport.js Chapter 7In the preceding code, we have added two routes: /login/google and
/login/google/return. If you remember, in Login.vue, we have added a link to
http://localhost:8081/login/twitter, which will be served by the first route that
we defined here.
Now, the final thing to do is to actually log in the user using the strategy. Replace the
contents of twitter.js with the following:
const User = require('../models/User.js');
const passport = require('passport');
const config = require('./../config/Config');
const Strategy = require('passport-twitter').Strategy;module.exports.controller = (app) => {
// twitter strategy
passport.use(new Strategy({
consumerKey: config.TWITTER_APP_ID,
consumerSecret: config.TWITTER_APP_SECRET,
userProfileURL:
'https://api.twitter.com/1.1/account/verify_credentials.json?include_email=
true',
callbackURL: '/login/twitter/return',
},
(accessToken, refreshToken, profile, cb) => {
const email = profile.emails[0].value;
User.getUserByEmail(email, (err, user) => {
if (!user) {
const newUser = new User({
fullname: profile.displayName,
email,
facebookId: profile.id,
});
User.createUser(newUser, (error) => {
if (error) {
// Handle error
}
return cb(null, user);
});
} else {
return cb(null, user);
}
return true;
});
}));app.get('/login/twitter',
passport.authenticate('twitter', { scope: ['email'] }));