What are your main contributions and improvements you have implemented in current projects?

In current Node.js projects, I have made the following improvements:

• Optimized asynchronous operation handling by replacing callbacks with async/await, which improved code readability and stability.
• Implemented centralized error handling via middleware, simplifying debugging and increasing API reliability.
• Cached frequently requested data using Redis, reducing database load and speeding up server response.
• Configured request and error logging with Winston, aiding in monitoring and analysis.

Example of centralized error handling in Express.js:

app.use(async (req, res, next) => {
  try {
    await next();
  } catch (err) {
    console.error(err);
    res.status(500).send('Internal Server Error');
  }
});