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As a beginner I was following a tutorial to make my first website with node.js but when I try to test a login with 100% valid information I get the following error:
Error: Failed to serialize user into session
Something weird I found is that when the error pops up I go back to the previous page, in this case the login page, and a welcome message I added on /profile.hbs/ pops up as if I was in a session.
This is my passport.js
const res = require('express/lib/response');
const passport = require('passport');
const pool = require('../database');
const router = require('../routes/usuario');
const LocalStrategy = require('passport-local').Strategy;
//const helpers = require('../lib/helpers')
passport.use('local.signin', new LocalStrategy({
usernameField: 'username',
passwordField: 'password',
passReqToCallback: true
}, async (req, username, password, done) => {
const rows = await pool.query('SELECT * FROM userr WHERE username = ?', [username])
if (rows.length > 0) {
const user = rows[0];
const validPassword = user.password == password
if (validPassword) {
done(null, user, req.flash('success', 'Bienvenido, ' + user.username))
}else{
done(null, false, req.flash('message', 'Contraseña incorrecta'))
}
} else {
return done(null, false, req.flash('message', 'El usuario no existe'))
}
}));
passport.use('local.signup', new LocalStrategy({
usernameField: 'username',
passwordField: 'password',
passReqToCallback: true
}, async (req, username, password, done) => {
const newUser = {
username: username,
password: password
};
//newUser.password = await helpers.encryptPassword(password);
const result = await pool.query('INSERT INTO userr SET ?', [newUser])
newUser.id_user = result.insertId;
return done(null, newUser);
}));
passport.serializeUser((user, done) => {
console.log(user)
done(null, user.id_user)
});
passport.deserializeUser(async (id_user, done) => {
const rows = await pool.query('SELECT * FROM userr WHERE ID = ?', [id_user]);
done(null, rows[0]);
});
And this is my authentication.js
const express = require('express');
const router = express.Router();
const passport = require('passport');
const { route } = require('./usuario');
router.get('/signup', (req, res) => {
res.render('auth/signup')
});
router.post('/signup', passport.authenticate('local.signup', {
successRedirect: '/profile',
failureRedirect: '/signup',
failureFlash: true
}));
router.get('/signin', (req, res) => {
res.render('auth/signin')
});
router.post('/signin', (req, res, next) => {
passport.authenticate('local.signin',{
successRedirect: '/profile',
failureRedirect: '/signin',
failureFlash: true
})(req, res, next);
})
router.get('/profile', (req, res) => {
res.render('profile');
});
module.exports = router;
I tried to use a different route, I forced out a session (it worked with a deserialize error I had), I redid the login step with completely different variables and a different database but I still got the same response.
I am a beginner and I have simple node application that use passport js.
Everything works but I want to get username here
app.get('/', checkLogged, (req, res) => {
res.render('index', {name: username});
});
Full project here https://github.com/aruzo1/passport
Can anybody help me?
There is way to do this?
Ps. This database is temporary
app.js
if (process.env.NODE_ENV !== 'production'){
require('dotenv').config();
}
const express = require('express'),
app = express(),
port = process.env.PORT || 3000,
bcrypt = require('bcrypt'),
passport = require('passport'),
initializePassport = require('./passport-config'),
flash = require('express-flash'),
session = require('express-session'),
methodOverride = require('method-override'),
users = []
initializePassport(passport,
email => users.find(user => user.email === email),
id => users.find(user => user.id === id)
);
require('ejs');
app.set('view engine', 'ejs');
app.use(express.urlencoded({extended : false}));
app.use(flash());
app.use(session({
secret: process.env.SESSION_SECRET,
resave: false,
saveUninitialized: false
}));
app.use(passport.initialize());
app.use(passport.session());
app.use(methodOverride('_method'));
app.get('/', checkLogged, (req, res) => {
res.render('index', {name: ""});
});
app.get('/login', checkNotLogged, (req, res) => {
res.render('login', {});
});
app.get('/register', checkNotLogged, (req, res) => {
res.render('register', {});
});
app.post('/register', checkNotLogged, async (req, res) => {
try{
hashedPassword = await bcrypt.hash(req.body.password, 10);
users.push({
id: Date.now().toString(),
name: req.body.name,
email: req.body.email,
password: hashedPassword
});
res.redirect('/login')
}
catch{
res.redirect('/register')
}
});
app.post('/login', checkNotLogged, passport.authenticate('local', {
successRedirect: '/',
failureRedirect: '/login',
failureFlash: true
}));
app.delete('/logout', (req, res) => {
req.logOut()
res.redirect('/login')
});
app.listen(port, () => {
console.log('serwer wystartowal')
});
function checkLogged(req, res, next){
if (req.isAuthenticated()){
return next();
}
res.redirect('/login');
}
function checkNotLogged(req, res, next){
if (req.isAuthenticated()){
return res.redirect('/')
}
next()
}
passport-config.js
const localStrategy = require('passport-local').Strategy,
bcrypt = require('bcrypt')
function initialize(passport, getUserByEmail, getUserById){
const authentitaceUser = async (email, password, done) =>{
const user = getUserByEmail(email);
if (user == null){
return done(null, false, {message: 'no user with that email'});
};
try{
if(await bcrypt.compare(password, user.password)){
return done(null, user)
}
else{
return done(null, false, {message: 'wrong password'})
}
}
catch(e){
return done(e)
}
};
passport.use(new localStrategy({
usernameField: 'email'
}, authentitaceUser));
passport.serializeUser((user, done) => {
return done(null, user.id)
});
passport.deserializeUser((id, done) => {
return done(null, getUserById(id))
});
};
module.exports = initialize
res.render('index', {name: req.user.username })
Should do the trick, as long the authentication itself was a success and your user has a 'username' field. Otherwise, req.user.username should throw an error;
Looks like you're using persistent sessions too - you should be able to grab user info from req.user and include it in your response...
app.get('/', checkLogged, (req, res) => {
res.send(req.user);
});
In passport.js when it verifies that user is logged in then the passport.js automatically set the logged-in user info to the res object.So it means whenever user send the request then the req object already having the user info.Here is the function whichdoing this:
passport.setAuthenticatedUser=(req,res,next)=>{
if(req.isAuthenticated())
{
res.locals.user=req.user;
}
next();
}
So in your case when user logged in at that time passport automatically set the user info to every res object.So when any request is coming in that request there is already an user info is present.
So that;s why you need write:
res.render('index', {name: req.user.username })
instead of writing:
res.render('index', {name: username});
when I pass name: req.user.name to my ejs file it gives me undefined, Can you help me with that please. let me know if you need more information if you need. I have tried a lot of ways but non of then have worked. thanks for the help.
Error:
Cannot read property 'name' of undefined when i call it in index.js
app.js
const express = require("express");
const expressLayouts = require('express-ejs-layouts');
const mongoose = require("mongoose");
const app = express();
const passport = require('passport');
const flash = require('connect-flash');
const session = require('express-session');
const PORT = process.env.PORT || 3000;
const nodemailer = require("nodemailer");
const bodyParser = require("body-parser");
var exphbs = require('express-handlebars');
app.engine('handlebars', exphbs());
app.set('view engine', 'handlebars');
app.use(bodyParser.urlencoded({ extended: true }));
app.use(express.static("public"));
app.get("/home", function(req, res) {
res.sendFile(__dirname + "/index.html")
})
app.get("/login", function(req, res) {
res.sendFile(__dirname + "/login.ejs")
})
app.get("/signup", function(req, res) {
res.sendFile(__dirname + "/register.html")
})
app.get("/payment", function(req, res) {
res.sendFile(__dirname + "/payment.html")
})
app.get("/companyInfo", function(req, res) {
res.sendFile(__dirname + "/companyInfo.html")
})
app.get("/FAQ", function(req, res) {
res.sendFile(__dirname + "/Faq.html")
})
app.get("/contactUs", function(req, res) {
res.sendFile(__dirname + "/contactUs.html")
})
app.post("/contactUs", function(req, res) {
const output = `
<h1>You have a new feedback</h1>
<ul>
<h3>Full Name: ${req.body.name}</h3>
<h3>Full Email: ${req.body.email}</h3>
<h3>Order Number: ${req.body.orderNumber}</h3>
</ul>
<h1>The Subject</h3>
<h3>${req.body.subject}</h1>
`;
var transporter = nodemailer.createTransport({
service: 'gmail',
auth: {
user: "sziacustomer#gmail.com",
pass: "Sziaszia12"
}
});
var mailOptions = {
from: req.body.email,
to: 'TEAMSZIA#GMAIL.COM',
subject: 'Costumers Email',
html: output
};
transporter.sendMail(mailOptions, function(error, info) {
if (error) {
console.log(error);
res.sendFile(__dirname + ("/failed.html"), { msg: "email sent" });
} else {
console.log('Email sent: ' + info.response);
res.sendFile(__dirname + ("/success.html"), { msg: "email sent" });
}
});
});
//bodyparser
app.use(express.urlencoded({ extended: false }))
const db = require("./config/keys").mongoURI;
require('./config/passport')(passport);
// Express session
app.use(
session({
secret: 'secret',
resave: true,
saveUninitialized: true
})
);
// Passport middleware
app.use(passport.initialize());
app.use(passport.session());
// connect flash
app.use(flash());
// Global variables
app.use(function(req, res, next) {
res.locals.success_msg = req.flash('success_msg');
res.locals.error_msg = req.flash('error_msg');
res.locals.error = req.flash('error');
next();
});
//connect mangodb using mongoose
mongoose.connect(db, { useNewUrlParser: true, useUnifiedTopology: true })
.then(() => console.log("mongoo bd connected"))
.catch(() => console.log(err));
//ejs
app.use(expressLayouts);
app.set('view engine', 'ejs');
app.use("/", require("./routes/index"));
app.use("/dashboard", require("./routes/index"));
app.use("/users", require("./routes/users"))
app.listen(PORT, console.log(`we are live on ${PORT}`));
*
index.js*
const express = require("express");
const router = express.Router();
const mongoose = require("mongoose");
const bcrypt = require('bcryptjs');
const User = require('../models/User');
const users = require("./users");
const LocalStrategy = require('passport-local').Strategy;
const { ensureAuthenticated } = require("../config/auth")
router.get("/", users, (req, res) =>
res.render("welcome", {
login: req.isAuthenticated(),
name: req.user.name //undefined
}))
user.js
const express = require("express");
const router = express.Router();
const bcrypt = require("bcryptjs");
const User = require("../models/User");
const passport = require("passport")
router.get("/login", (req, res) => res.render("login"));
router.get("/register", (req, res) => res.render("register"));
router.post('/register', (req, res) => {
const { name, email, password, password2 } = req.body;
let errors = [];
if (!name || !email || !password || !password2) {
errors.push({ msg: 'Please enter all fields' });
}
if (password != password2) {
errors.push({ msg: 'Passwords do not match' });
}
if (password.length < 6) {
errors.push({ msg: 'Password must be at least 6 characters' });
}
if (errors.length > 0) {
res.render('register', {
errors,
name,
email,
password,
password2
});
} else {
User.findOne({ email: email }).then(user => {
if (user) {
errors.push({ msg: 'Email already exists' });
res.render('register', {
errors,
name,
email,
password,
password2
});
} else {
const newUser = new User({
name,
email,
password
});
bcrypt.genSalt(10, (err, salt) => {
bcrypt.hash(newUser.password, salt, (err, hash) => {
if (err) throw err;
newUser.password = hash;
newUser
.save()
.then(user => {
req.flash(
'success_msg',
'You are now registered and can log in'
);
res.redirect('/users/login');
})
.catch(err => console.log(err));
});
});
}
});
}
});
// Login
router.post('/login', (req, res, next) => {
passport.authenticate('local', {
successRedirect: '/',
failureRedirect: '/users/login',
failureFlash: true,
})(req, res, next);
});
// Logout
router.get('/logout', (req, res) => {
req.logout();
req.flash('success_msg', 'You are logged out');
res.redirect('/users/login');
});
module.exports = router;
passport.js
const LocalStrategy = require('passport-local').Strategy;
const bcrypt = require('bcryptjs');
// Load User model
const User = require('../models/User');
module.exports = function(passport) {
passport.use(
new LocalStrategy({ usernameField: 'email' }, (email, password, done) => {
// Match user
User.findOne({
email: email
}).then(user => {
if (!user) {
return done(null, false, { message: 'That email is not registered' });
}
// Match password
bcrypt.compare(password, user.password, (err, isMatch) => {
if (err) throw err;
if (isMatch) {
return done(null, user);
} else {
return done(null, false, { message: 'Password incorrect' });
}
});
});
})
);
passport.serializeUser(function(user, done) {
done(null, user.id);
});
passport.deserializeUser(function(id, done) {
User.findById(id, function(err, user) {
done(err, user);
});
});
}
auth.js
module.exports = {
ensureAuthenticated: function(req, res, next) {
if (req.isAuthenticated()) {
return next();
}
req.flash('error_msg', 'Please log in to view that resource');
res.redirect('/users/login');
},
forwardAuthenticated: function(req, res, next) {
if (!req.isAuthenticated()) {
return next();
}
res.redirect('/');
}
}
I am new to building REST API's, and I am trying to enter new user information into a collection called 'Users', however, when I submit the information I get Cannot POST /register
Below is my code
server.js
require('dotenv').config()
const express = require('express')
const app = express()
const mongoose = require('mongoose')
const expressValidator = require('express-validator')
mongoose.connect(process.env.DATABASE_URL, { useNewUrlParser: true , useUnifiedTopology: true })
const db = mongoose.connection
db.on('error', (error) => console.error(error))
db.once('open', () => console.log('Connected to Database'))
app.use(express.json())
const articlesRouter = require('./routes/articles')
app.use('/articles', articlesRouter)
const userRouter = require('./routes/users')
app.use('/register', userRouter)
app.set('view-engine', 'ejs')
app.use(express.urlencoded({ extended: false }))
app.get('/', (req, res) => {
res.render('index.ejs')
})
app.get('/login', (req, res) => {
res.render('login.ejs')
})
app.post('/login', (req, res) => {
})
app.get('/register', (req, res) => {
res.render('register.ejs')
})
app.listen(3000, () => console.log('Server Started'))
Users model
const mongoose = require('mongoose')
const bcrypt = require('bcrypt')
var userSchema = new mongoose.Schema({
firstName: String,
lastName: String,
email: String,
password: String,
permissionLevel: Number,
created: Date},
{ collection: 'Users'});
module.exports = mongoose.model('Users', userSchema);
module.exports.createUser = function(newUser, callback){
bcrypt.genSalt(10, function(err, salt) {
bcrypt.hash(newUser.password, salt, function(err, hash) {
newUser.password = hash;
newUser.save(callback);
});
});
}
module.exports.getUserByEmail = function(email, callback){
var query = {email: email};
User.findOne(query, callback);
}
module.exports.getUserById = function(id, callback){
user.findById(id, callback);
}
module.exports.comparePassword = function(candidatePassword, hash, callback) {
bcrypt.compare(candidatePassword, hash, function(err, isMatch){
if(err) throw err;
callback(null, isMatch)
});
}
users routes
const express = require('express')
const router = express.Router()
const Users = require('../models/users')
const passport = require('passport')
const LocalStrategy = require('passport-local').Strategy
//Register Page - GET
router.get('/register', (req, res) => {
res.render('register.hbs', {
pageTitle: 'register'
});
});
//Login Page - GET
router.get('/login', (req, res) => {
res.render('login.hbs', {
pageTitle: 'login'
});
});
//Register - POST
router.post('/', (req, res) => {
var firstName = req.body.firstName;
var lastName = req.body.lastName;
var email = req.body.email;
var password = req.body.password;
//validations
req.checkBody('firstName', 'Your First Name is Required').notEmpty();
req.checkBody('lastName', 'Your Last Name is Required').notEmpty();
req.checkBody('email', 'A valid email is required').isEmail();
req.checkBody('password', 'An Account Passowrd Is Required').notEmpty();
var errors = req.validationErrors();
if (errors) {
res.render('register', {
errors:errors
});
} else {
var newUser = new newUser({
firstName: firstName,
lastName: lastName,
email: email,
password: password,
});
User.createUser(newUser, function(err, user) {
if(err) throw(err);
console.log(user);
});
req.flash('success_message', "You are now registered!");
res.redirect('/login');
}
});
passport.use(new LocalStrategy({
email: 'email'
},
function(email, password, done){
Users.getUserByEmail(email, function(err, Users){
if(err) throw err;
if(!Users){
return done(null, false, {message: 'Unknown Email Address'});
}
Users.comparePassword(password, user.password, function(err, ismatch){
if(err) throw err;
if(ismatch){
return done (null, user);
} else {
return done(null, false, {message: 'Invalid Passowrd'});
}
});
});
}));
passport.serializeUser(function(user, done){
done(null, user.id);
});
passport.deserializeUser(function(id, done) {
Users.getUserByID(id, function(err, user) {
done(err, user)
});
});
router.post('/login', passport.authenticate('local', {
successRedirect: '/dashboard',
failureRedirect: '/login',
successFlash: 'Welcome',
failureFlash: 'Invalid Email or Passowrd!'
}), function(req, res) {
res.redirect('/');
});
router.get('/logout', function(req, res) {
req.logout();
req.flash('Success_message', 'You are now logged out!')
res.redirect('/');
});
module.exports = router
I suspect the conflict is between the router /register and the my 'Users' collection. I'm just unable to pinpoint what the issue could be.
Any help would be greatly appreciated
Your userRouter is mounted on /users (from your code: app.use('/users', userRouter), meaning that all the routes you declared in the router are prefixed by /users).
Try calling POST /users/register.
You're using users routes file at /users route, so when you declare /register route in users routes file it become /users/register please send your REST API request to /users/register endpoint
I am using nodeJS with the expressJS server framework. This issue is regarding passportJS not saving more than 1 user to MongoDB.
Firstly, I set up email registration with passport-local and got that to work fine. Secondly, I set up passport-facebook which essentially broke my email registration somehow. Each registration (email & facebook) now only log in just 1 user, I have to keep deleting the user from mongodb to register again. When there is 1 user in the database and I try to register another - I receive the error below.
process.nextTick(function() { throw err; });
^
TypeError: Cannot read property '1' of null at model.mongodbErrorHandler (/Users/tlr/Dropbox/Websites/app-one/node_modules/mongoose-mongodb-errors/lib/plugin.js:19:49)
at next (/Users/tlr/Dropbox/Websites/app-one/node_modules/mongoose/node_modules/kareem/index.js:145:14)
at Kareem.execPost (/Users/tlr/Dropbox/Websites/app-one/node_modules/mongoose/node_modules/kareem/index.js:193:3)
at /Users/tlr/Dropbox/Websites/app-one/node_modules/mongoose/lib/model.js:219:35
at /Users/tlr/Dropbox/Websites/app-one/node_modules/mongoose/lib/model.js:152:9
at /Users/tlr/Dropbox/Websites/app-one/node_modules/mongoose/node_modules/mongodb/lib/collection.js:524:20
at /Users/tlr/Dropbox/Websites/app-one/node_modules/mongoose/node_modules/mongodb/lib/collection.js:658:14
at handleCallback (/Users/tlr/Dropbox/Websites/app-one/node_modules/mongoose/node_modules/mongodb/lib/utils.js:95:56)
at /Users/tlr/Dropbox/Websites/app-one/node_modules/mongoose/node_modules/mongodb/lib/bulk/unordered.js:465:9
at handleCallback (/Users/tlr/Dropbox/Websites/app-one/node_modules/mongoose/node_modules/mongodb/lib/utils.js:95:56)
at resultHandler (/Users/tlr/Dropbox/Websites/app-one/node_modules/mongoose/node_modules/mongodb/lib/bulk/unordered.js:413:5)
at /Users/tlr/Dropbox/Websites/app-one/node_modules/mongoose/node_modules/mongodb-core/lib/connection/pool.js:455:18
at _combinedTickCallback (internal/process/next_tick.js:131:7)
at process._tickCallback (internal/process/next_tick.js:180:9)
I think the issue may lie around the User Schema because each Strategy saves different user information. Thus, local & facebook may not be marrying up properly in the database which causes an error? Correct me if I'm wrong.
The main files to look at are my userSchema (User.js), my routes file (index.js) where I include my FB Strategy and module imports, and my controller files (userController.js, authController.js) where I export my modules and functions.
User.js
const mongoose = require('mongoose');
const Schema = mongoose.Schema;
mongoose.Promise = global.Promise;
const md5 = require('md5');
const validator = require('validator');
const mongodbErrorHandler = require('mongoose-mongodb-errors');
const passportLocalMongoose = require('passport-local-mongoose');
const userSchema = new Schema({
name: {
type: String,
required: 'Please supply a name',
trim: true,
},
email: {
type: String,
unique: true,
lowercase: true,
trim: true,
required: 'Please supply an email address',
validate: [validator.isEmail, 'Invalid Email Address']
},
id: String,
token: String
});
userSchema.plugin(passportLocalMongoose, { usernameField: 'email' });
userSchema.plugin(mongodbErrorHandler);
module.exports = mongoose.model('User', userSchema);
index.js
const express = require('express');
const mongoose = require('mongoose');
const passport = require('passport');
const User = mongoose.model('User');
const authIDs = require('../../oauth');
const authController = require('../controllers/authController');
const userController = require('../controllers/userController');
const FacebookStrategy = require('passport-facebook').Strategy;
const router = express.Router();
passport.use(new FacebookStrategy({
clientID: authIDs.facebook.clientID,
clientSecret: authIDs.facebook.clientSecret,
callbackURL: authIDs.facebook.callbackURL,
profileFields: ['id', 'emails', 'name'],
passReqToCallback : true
},
function(req, accessToken, refreshToken, profile, done) {
const newUser = new User();
newUser.id = profile.id;
newUser.token = accessToken;
newUser.name = profile.name.givenName;
newUser.email = profile.emails[0].value;
process.nextTick( function() {
User.findOne({id: profile.id}, (err, user) => {
if (err) {
return done(err);
}
if (!user) {
newUser.save().then( user => {
done( null, user );
} ).catch( err => {
done( err );
} );
} else {
return done(null, user);
}
});
});
}
));
router.get( '/login', userController.loginForm);
router.post( '/login', authController.login);
router.get( '/register', userController.registerForm);
router.post( '/register',
userController.validateRegister,
userController.register,
authController.login
);
router.get('/auth/facebook', authController.fbauth);
router.get('/auth/facebook/callback', authController.fbcallback);
router.get( '/logout', authController.logout);
router.get('/', (req, res) => {
res.render('home');
});
module.exports = router;
userController.js
const mongoose = require('mongoose');
const User = mongoose.model('User');
const promisify = require('es6-promisify');
exports.loginForm = (req, res) => {
res.render('login')
};
exports.registerForm = (req, res) => {
res.render('register')
};
exports.validateRegister = (req, res, next) => {
// express validator methods below
req.sanitizeBody('name');
req.checkBody('name', 'You must supply a name!').notEmpty();
req.checkBody('email', 'That email is not valid!').isEmail();
req.sanitizeBody('email').normalizeEmail({
remove_dots: false,
remove_extension: false,
gmail_remove_subaddress: false
});
req.checkBody('password', 'Password cannot be blank!').notEmpty();
req.checkBody('password-confirm', 'Confirmed password cannot be blank!').notEmpty();
req.checkBody('password-confirm', 'Oops! Your passwords do not match').equals(req.body.password);
const errors = req.validationErrors();
if (errors) {
req.flash('error', errors.map(err => err.msg));
res.render('register', { body: req.body, flashes: req.flash() });
return;
}
next();
};
exports.register = async (req, res, next) => {
const user = new User({ name: req.body.name, email: req.body.email});
const register = promisify(User.register, User);
await register(user, req.body.password);
next();
};
authController.js
const passport = require('passport');
const mongoose = require('mongoose');
const User = mongoose.model('User');
exports.login = passport.authenticate('local', {
failureRedirect: '/login',
failureFlash: 'Failed Login!',
successRedirect: '/',
successFlash: 'You are now logged in!'
});
exports.fbauth = passport.authenticate('facebook', {scope: ['email']});
exports.fbcallback = passport.authenticate('facebook', {
failureRedirect: '/login',
failureFlash: 'Failed Login!',
successRedirect: '/',
successFlash: 'You are now logged in!'
});
exports.logout = (req, res, next) => {
req.logout();
req.flash('success', 'You successfully logged out!');
res.redirect('/login')
};
Any suggestions on a fix would be suuuuuuuuper duuuuuuper highly appreciated.
OH MY GOD after hours of trying, like most problems solved in coding, this one was terribly embarrassing.
Because I'm using the code as mentioned in the question above, you can see I'm implementing both a local email registration as well as a passport-facebook authentication. So... What was causing that confusing error was the following code was like this:
passport.serializeUser(User.serializeUser(), function(user, done) {
done(null, user.id);
});
passport.deserializeUser(User.deserializeUser(), function(id, done) {
User.findById(id, function(err, user) {
done(err, user);
});
});
instead of simply being like this:
passport.serializeUser(User.serializeUser(), function(user, done) {
done(null, user);
});
passport.deserializeUser(User.deserializeUser(), function(user, done) {
done(null, user);
});