req.session.user undefined in glitch but not in local - node.js

Question

I try to use req.session.user in node.js to control the connection on my application. It's working on my local environnement but when I put my app on glitch the req.session.user is undefined.
I try to use req.session.user in node.js to control the connection on my application. It's working on my local environnement but when I put my app on glitch in my auth function the req.session.user is undefined. I initialized it in the "app.post('/api/login'..." and when I call auth function it's disapear.
Here my server.js :
const express = require('express');
const path = require('path');
let bodyParser = require('body-parser');
const mongoose = require('mongoose');
const User = require('./model/user');
const bcrypt = require('bcryptjs');
const session = require("express-session");
const Reservation = require('./model/reservation');
const Resource = require('./model/resource');
const rateLimit = require("express-rate-limit");
/*const routes = require('./routes');
const auth = require('./auth');*/
require('dotenv').config();
mongoose.connect(process.env.MONGODB_URI, {
useNewUrlParser: true,
useUnifiedTopology: true
});
const app = express();
//app.use(routes);
app.use(session({
secret: 'top secret',
resave: false,
saveUninitialized: true
}));
app.use(bodyParser.urlencoded({
extended: true
}));
app.use(express.static(path.join(__dirname, 'views')));
app.set('views', path.join(__dirname , 'views'));
app.engine('html', require('ejs').renderFile);
app.set('view engine', 'html');
app.use(bodyParser.json());
function auth(req, res, next) {
if (req?.session?.user) {
return next();
}
else {
return res.sendStatus(401);
}
}
app.get('/', function(req, res) {
if(req?.session?.user){
res.redirect("/home");
}
else{
res.redirect("/login");
}
});
app.get('/login', function(req, res) {
res.render(path.join(__dirname, 'views', 'login.html'));
});
app.get('/register', function(req, res) {
res.render(path.join(__dirname, 'views', 'register.html'));
});
app.get('/home', auth, async (req, res) => {
const resources = await Resource.find();
res.render(path.join(__dirname, 'views', 'home.ejs'), {user: req.session.user.username, isAdmin: req.session.user.isAdmin, resources });
});
app.get('/calendar', auth, async function(req, res) {
const reservations = await Reservation.find();
res.render(path.join(__dirname, 'views', 'calendar.ejs'), {user: req.session.user.username, isAdmin: req.session.user.isAdmin, reservations});
});
app.get('/reservations', auth, async function(req, res) {
const reservations = await Reservation.find({user : req.session.user.username});
return res.render(path.join(__dirname, 'views','reservations.ejs'), {user: req.session.user.username, isAdmin: req.session.user.isAdmin, reservations});
});
app.get('/addReservation', auth, async function(req, res) {
const resources = await Resource.find();
res.render(path.join(__dirname, 'views', 'addReservation.ejs'), {user: req.session.user.username, isAdmin: req.session.user.isAdmin, resources});
});
app.get('/admin', auth, async function(req, res) {
if(req.session.user.isAdmin){
const resources = await Resource.find();
res.render(path.join(__dirname, 'views', 'admin.ejs'), {user: req.session.user.username, isAdmin: req.session.user.isAdmin, resources});
}
});
app.post('/api/login', async (req, res) => {
const { username, password } = req.body
const user = await User.findOne({ username }).lean()
if (!user) {
return res.render(path.join(__dirname, 'views', 'error.ejs'), {error : "Incorrect username or password", redirect : "/login"});
} else if (await bcrypt.compare(password, user.password)){
req.session.user = {username : username, isAdmin : user.isAdmin};
res.redirect("/home");
}
else {
return res.render(path.join(__dirname, 'views', 'error.ejs'), {error : "Incorrect username or password", redirect : "/login"});
}
});
app.post('/logout', function(req, res) {
req.session.destroy();
res.redirect("/login");
});
const registerLimiter = rateLimit({
windowMs: 15 * 60 * 1000, // 15 minutes
max: 10000, // limit each IP to 100 requests per windowMs
message: "Too many registration attempts. Please try again later."
});
app.use("/api/register", registerLimiter);
app.post('/api/register', async (req, res) => {
const { username, password: plainTextPassword } = req.body
if (!username || typeof username !== 'string') {
return res.json({ status: 'error', error: "Nom d'utilisateur invalide" });
}
if (!plainTextPassword || typeof plainTextPassword !== 'string') {
return res.json({ status: 'error', error: 'Mot de passe invalide' });
}
if (plainTextPassword.length < 4) {
return res.json({
status: 'error',
error: 'Le mot de passe doit contenir au moins 4 caractères'
})
}
const duplicate = await User.findOne({username});
if(duplicate){
return res.json({ status: 'error', error: "Nom d'utilisateur indisponible" });
}else{
const password = await bcrypt.hash(plainTextPassword, 10);
const user = new User({ username, password, isAdmin : false });
await user.save();
req.session.user = {username : username, isAdmin : false};
res.json({ status: 'ok' });
console.log('Utilisateur créé : ', req.session.user);
}
});
app.post('/api/reservations', auth, async (req, res) => {
try {
const {resourceId, dateDebut, dateFin, user} = req.body;
let conflicts = [];
if (dateDebut > dateFin) {
return res.render(path.join(__dirname, 'views', 'error.ejs'), {error : "La date de début doit être antérieure à la date de fin", redirect : "/addReservation"});
}
// check for conflicts with existing reservations
for (let i = 0; i < resourceId.length; i++) {
const existingReservation = await Reservation.findOne({
resourceId: resourceId[i],
$or: [
{$and: [{dateDebut: {$gte: dateDebut}}, {dateDebut: {$lte: dateFin}}]},
{$and: [{dateFin: {$gte: dateDebut}}, {dateFin: {$lte: dateFin}}]},
{$and: [{dateDebut: {$lte: dateDebut}}, {dateFin: {$gte: dateFin}}]}
]
});
if (existingReservation) {
conflicts.push(resourceId[i]);
}
}
if (conflicts.length > 0) {
const error = {
status: 'Conflit de réservation',
message: `Votre réservation n'a pas pu aboutir car une autre réservation est déjà en cours pour la(les) ressource(s) : "${conflicts}" durant cette plage horaire.`
};
return res.render(path.join(__dirname, 'views', 'conflict.ejs'), {error});
}
// create new reservation
for (let i = 0; i < resourceId.length; i++) {
const reservation = new Reservation({
resourceId: resourceId[i],
dateDebut,
dateFin,
user
});
await reservation.save();
const resource = await Resource.findOne({ name: resourceId[i] });
await resource.save();
}
} catch (error) {
console.log(error);
return res.render(path.join(__dirname, 'views','error.ejs'),
{error : "La création de la réservation a échoué. Veuillez réessayer ultérieurement.", redirect: "/reservations"});
}
return res.redirect("/reservations");
});
app.post('/api/reservations/delete', auth, async (req, res) => {
try {
const deletedReservation = await Reservation.findByIdAndDelete(req.body.id);
if (!deletedReservation) {
return res.status(404).render(path.join(__dirname, 'views', 'error.ejs'), {error : "Réservation introuvable", redirect: "/reservations"});
}
return res.redirect("/reservations");
} catch (err) {
return res.status(500).render(path.join(__dirname, 'views', 'error.ejs'),
{error : "Erreur lors de la suppression de la réservation", redirect: "/reservations"});
}
});
app.post('/api/resources', auth, async (req, res) => {
try {
const duplicate = await Resource.findOne({
name: req.body.name
});
if (duplicate) {
return res.render(path.join(__dirname, 'views', 'error.ejs'), {error : "Ressource déjà existante", redirect: "/admin"});
}
const name = req.body.name;
const resource = new Resource({name});
await resource.save();
console.log('Ressource créée : ', resource);
return res.redirect("/admin");
} catch (error) {
return res.render(path.join(__dirname, 'views', 'error.ejs'),
{error : "La création de la ressource a échoué. Veuillez réessayer ultérieurement.", redirect: "/admin"});
}
});
app.listen(process.env.PORT, () => {
console.log('Server up at ' + process.env.PORT);
})
If anyone could help me...
Thanks a lot for your help