MongooseError: Model.findOne() no longer accepts a callback

[abhishekbr25]

Instead of :

passport.use(new JwtStrategy(opts, function(jwt_payload, done) {
    User.findOne({id: jwt_payload.sub}, function(err, user) {
        if (err) {
            return done(err, false);
        }
        if (user) {
            return done(null, user);
        } else {
            return done(null, false);
            // or you could create a new account
        }
    });
}));

use this code:

passport.use(new JwtStrategy(opts, async function(jwt_payload, done) {
  try {
    const user = await User.findOne({ _id: jwt_payload.sub });
    if (user) {
        return done(null, user);
    } else {
        return done(null, false);
    }
} catch (err) {
    return done(err, false);
}
}));