simple jwt with mongoose

index.js

import express from 'express';
import jwt from 'jsonwebtoken';
import bodyParser from 'body-parser';
import bcrypt from 'bcrypt';
import mongoose from 'mongoose';
import 'dotenv/config'; // Import and configure dotenv.
import User from './user.js';

const app = express();
app.use(bodyParser.urlencoded({ extended: false })); // Parses urlencoded bodies.
app.use(bodyParser.json()); // Parses json bodies.
const port = 5000;

const posts = [{ id: 1, title: 'title', body: 'body' }];

app.post('/register', async (req, res) => {
  const newUser = new User({
    email: req.body.email,
    password: await bcrypt.hash(req.body.password, 10),
  });
  await newUser.save();
  res.json(newUser);
});

app.post('/login', async (req, res) => {
  const { email, password } = req.body;
  const user = await User.findOne({ email });
  const passwordsMatch =
    email && password ? await bcrypt.compare(password, user.password) : false;

  if (passwordsMatch) {
    const token = jwt.sign(
      {
        data: 'foobar',
      },
      process.env.JWT_SECRET,
      { expiresIn: '1h' }
    );
    return res.json({ user: user, token: token });
  } else {
    return res
      .status(501)
      .json({ message: 'Login error, provide correct email and password.' });
  }
});

async function main() {
  await mongoose.connect('mongodb://localhost:27017/blog');
  console.log('Connected to db');

  app.listen(port, () => {
    console.log(`Example app listening on port ${port}`);
  });
}

await main();