| کانال توسعه‌دهندگان وب |: post #99 — TG.ME

app.post('/api/users', async (req, res) => {
  const { email, password } = req.body;

  if (!email || !password) {
    return res.status(400).json({ message: 'Invalid data' });
  }

  console.log('Creating user', email);

  const exists = await User.findOne({ email });
  if (exists) {
    return res.status(409).json({ message: 'User exists' });
  }

  const hash = await bcrypt.hash(password, 10);
  const user = await User.create({ email, password: hash });

  return res.status(201).json({
    id: user.id,
    email: user.email,
  });
});

function validateCreateUser(body) {
  const { email, password } = body;
  if (!email || !password) {
    throw new Error('INVALID_DATA');
  }
}

async function ensureUserNotExists(email) {
  const exists = await User.findOne({ email });
  if (exists) {
    throw new Error('USER_EXISTS');
  }
}

async function createUser(email, password) {
  const hash = await bcrypt.hash(password, 10);
  return User.create({ email, password: hash });
}

app.post('/api/users', async (req, res) => {
  try {
    validateCreateUser(req.body);

    const { email, password } = req.body;
    await ensureUserNotExists(email);

    const user = await createUser(email, password);

    return res.status(201).json({
      id: user.id,
      email: user.email,
    });
  } catch (err) {
    if (err.message === 'INVALID_DATA') {
      return res.status(400).json({ message: 'Invalid data' });
    }
    if (err.message === 'USER_EXISTS') {
      return res.status(409).json({ message: 'User exists' });
    }
    return res.status(500).json({ message: 'Server error' });
  }
});