setup-mern/templates/src/services/authService.js

A CLI tool to generate a MERN backend boilerplate in seconds!

const User = require('../models/User');
const { JWT_SECRET, JWT_EXPIRES_IN } = require('../config/envConfig');
const jwt = require('jsonwebtoken');

// Signup service
exports.signup = async (name, email, password) => {
  const newUser = await User.create({ name, email, password });
  return newUser;
};

// Login service
exports.login = async (email, password) => {
  const user = await User.findOne({ email }).select('+password');

  if (!user || !(await user.comparePassword(password))) {
    throw new Error('Incorrect email or password');
  }

  const token = jwt.sign({ id: user._id }, JWT_SECRET, { expiresIn: JWT_EXPIRES_IN });
  return token;
};