Could you tell about specific backend tasks you performed in your current or last project?

In my last project, I worked on developing REST API with Node.js using Express. My tasks included:

• Implementing endpoints for CRUD operations with a database (MongoDB).
• Handling user authentication and authorization via JWT.
• Integrating with external services, such as sending notifications through third-party APIs.
• Optimizing queries and error handling to improve service stability.

Example code for creating a simple endpoint:

const express = require('express');
const router = express.Router();

// Get list of users
router.get('/users', async (req, res) => {
  try {
    const users = await User.find();
    res.json(users);
  } catch (err) {
    res.status(500).json({ error: 'Server error' });
  }
});

module.exports = router;