Problem with logout user. Express server api with JWT auth - express

Question

I'm trying to create a full-stack mern app. I use jwt authentication. I will save the token in local storage and the token will be removed from there with react.
I have tried with req.logout(), req.logOut() and req.session.destroy() and it doesn't work.
Thank you!
const signIn = (req, res) => {
const { email, password } = req.body;
User.findOne({ email: email })
.then((user) => {
if (!user) {
const error = new Error('A user with this email could not be found');
error.statusCode = 401;
throw error;
}
if(!user.authenticate(password)) {
const error = new Error('A user with this email could not be found');
error.statusCode = 401;
throw error;
}
const token = jwt.sign({
email: user.email,
userId: user._id.toString()
}
, 'somesupersecret'
, { expiresIn: '1h' });
res.status(200).json(
{
message: 'User successfully logged in!',
token,
userId: user._id.toString()
});
})
.catch(error => {
if (!error.statusCode) {
error.statusCode = 500;
next(error);
}
})
}
const logOut = async(req, res) => {
try{
await req.logOut();
res.status(200).json(
{
message: 'User successfully logged out!',
});
}
catch(error) {
console.log(error);
}
}
module.exports = {
signUp,
signIn,
logOut
}
I become errors like TypeError: req.logOut is not a function.

Answer 1

This should not be done on the server. Just remove/invalidate your jwt token that is being sent by the client. Generally the token is stored in localStorage and/or cookies. Just delete that token and refresh the page, user will logout.