passportConfig.js

// passportConfig.js

const passport = require('passport');
const LocalStrategy = require('passport-local');
const bcrypt = require('bcrypt');
const User = require('./models/User');

passport.use(
    new LocalStrategy(async (username, password, done) => {
        try {
            const user = await User.findOne({ username });
            if (!user) {
                return done(null, false, {
                    message: 'Invalid credentials',
                });
            }
            const isMatch = await bcrypt.compare(password, user.password);
            if (isMatch) {
                return done(null, user);
            } else {
                return done(null, false, {
                    message: 'Invalid credentials',
                });
            }
        } catch (err) {
            return done(err);
        }
    }),
);

passport.serializeUser(async (user, done) => {
    try {
        done(null, user.id);
    } catch (err) {
        done(err, null);
    }
});

passport.deserializeUser(async (id, done) => {
    try {
        const user = await User.findById(id);
        done(null, user);
    } catch (err) {
        done(err, null);
    }
});

module.exports = passport;