PassportJS session not working in subsequent request in express - node.js

Question

I am making google authentication using PassportJS and I came into a problem where I cannot see any value in req.user object in the subsequent requests.
GoogleStrategy
const express = require("express");
const dotenv = require("dotenv");
const passport = require("passport");
dotenv.config();
const GoogleStrategy = require("passport-google-oauth20").Strategy;
passport.use(
new GoogleStrategy(
{
clientID: process.env.client_id,
clientSecret: process.env.client_secret,
callbackURL: "/api/google/callback",
},
function (accessToken, refreshToken, profile, done) {
done(null, profile);
console.log(profile.id);
}
)
);
passport.serializeUser((user, done) => {
done(null, user);
console.log("serialize");
console.log(user);
});
passport.deserializeUser((user, done) => {
done(null, user);
console.log("deserialize");
console.log(user);
});
server.js
const express = require("express");
const { db } = require("../database/db.js");
const dotenv = require("dotenv");
const passport = require("passport");
const passportsetup = require("./middleware/facebookMiddleware");
const userLoginRoutes = require("./routes/userRoutes");
const facebookRoutes = require("./routes/facebookRoutes");
const cors = require("cors");
const app = express();
const session = require("express-session");
const cookieSession = require("cookie-session");
const PORT = process.env.PORT || 3001;
app.use(express.json());
app.use(
session({
secret: "secret-key",
resave: false,
saveUninitialized: false,
name: "usersession",
cookie: {
maxAge: 24 * 60 * 60 * 100,
secure: false,
},
})
);
// app.use(
// cookieSession({
// name: "session",
// keys: ["amaaa"],
// maxAge: 24 * 60 * 60 * 100,
// })
// );
app.use(
cors({
origin: "http://localhost:3000",
methods: "GET,POST,PUT,DELETE",
credentials: true,
})
);
// initializing passport
app.use(passport.initialize());
// for persistent logins
app.use(passport.session());
// userRoutes
app.use("/api/users", userLoginRoutes);
app.use("/api/google", facebookRoutes);
app.get("/api", (req, res) => {
res.send("Api is running");
});
app.listen(PORT, console.log("server is running"));
routes
const express = require("express");
const passport = require("passport");
const router = express.Router();
const CLIENT_URL = "http://localhost:3000/signup";
router.route("/login/success").get((req, res) => {
console.log("hiiiiiiiiiiii raaaaaan");
console.log(req.user);
if (req.user) {
res.status(200).json({
success: true,
message: "successfull",
user: req.user,
// cookies: req.cookies
});
console.log(req.user);
}
});
router.route("/login/failed").get((req, res) => {
res.status(401).json({
success: false,
message: "failure",
});
});
router.route("/logout").get((req, res) => {
req.logout();
res.redirect(CLIENT_URL);
});
router
.route("/auth")
.get(passport.authenticate("google", { scope: ["profile"] }));
router.route("/callback").get(
passport.authenticate("google", {
successRedirect: CLIENT_URL,
failureRedirect: "/login/failed",
})
);
module.exports = router;
After logging in with google, I get the profile of the user but when I hit api/google/login/success I expect to get value in req.user but it gives null value. Is there anything wrong with my implementation?
And the fact that I am not checking the database while deserializing is that I just want the current value and I do not need everytime to check database.
Please correct me if I am using serialize and deserialize in wrong way.
Thanks.