req.user is undefined, using typescript - node.js

Question

i am new to typescript and i am working on an Oauth2.0 project with passport, the req.user returns undefined and i dont know why, here is my code.
function checkLoggedIn(req: Request, res: Response, next: NextFunction): any {
console.log('current user is: ', req.user);
const isLoggedIn = true;
if (!isLoggedIn) {
return res.status(401).json({
error: 'you must log in',
});
}
next();
}
i always get undefined when logging the user
current user is: undefined
anyone knows what is the course of this?
the whole code
async function verifyCallback(accessToken: any, refreshToken: any, profile: any, done: any) {
const newUser = {
googleId: profile.id,
displayName: profile.displayName,
email: profile.emails[0].value,
Image: profile.photos[0].value,
};
try {
let user = await Oauth.findOne({ googleId: profile.id });
if (user) {
done(null, profile);
} else {
user = await Oauth.create(newUser);
done(null, profile);
}
} catch (err) {
console.log(err);
}
}
passport.use(new Strategy(AUTH_OPTIONS, verifyCallback));
// save the session to the cookie
passport.serializeUser((user: any, done) => {
done(null, user.id)
});
// load the session from the cookie
passport.deserializeUser((id: any, done) => {
done(null, id)
});
app.use(helmet());
app.use(cookieSession({
name: 'session',
maxAge: 24 * 60 * 60 * 1000,
keys: [ config.COOKIE_KEY_1, config.COOKIE_KEY_2 ],
}))
app.use(passport.initialize());
app.use(passport.session());
function checkLoggedIn(req: Request, res: Response, next: NextFunction): any {
console.log('current user is: ', req.user);
const isLoggedIn = true;
if (!isLoggedIn) {
return res.status(401).json({
error: 'you must log in',
});
}
next();
}
// Authentication route
router.get(
'/auth/google',
passport.authenticate('google', {
scope: ['profile', 'email', 'https://www.googleapis.com/auth/youtube.upload'],
}),
);
router.get(
'/auth/google/callback',
passport.authenticate('google', {
failureRedirect: '/failure',
successRedirect: '/user',
session: true,
}),
(req, res) => {
console.log('google called us back');
},
);
router.get('/user', checkLoggedIn, async (req, res) => {
try {
const user: any = await Oauth.findOne({ username: String });
res.status(200).json(user);
} catch (err) {
res.status(500).json(err);
}
});
router.get('/logout', (req, res) => {
res.redirect('/')
});
router.get('/failure', (req, res) => {
res.send('failed to log in');
});

Answer 1

**
Try this
**
You can change the value (req.user) to (req.body.user)
function checkLoggedIn(req: Request, res: Response, next: NextFunction): any {
console.log('current user is: ', req.body.user);
const isLoggedIn = true;
if (!isLoggedIn) {
return res.status(401).json({
error: 'you must log in',
});
}
next();
}