What are the best practices for error handling in Node.js?

What are the best practices for error handling in Node.js?

In Node.js, it's important to handle errors gracefully. Some best practices include using try-catch blocks, handling promise rejections, and using middleware for centralized error handling.

Can you explain how to use middleware for error handling?

Sure! You can create an error-handling middleware function that takes four arguments: err, req, res, and next. This function can log the error and send a response to the client.

What about handling asynchronous errors?

For asynchronous code, you can use try-catch within async functions or handle promise rejections with .catch(). Additionally, you can use libraries like express-async-errors to simplify error handling.

Are there any tools to help with error tracking?

Yes, tools like Sentry, Rollbar, and LogRocket can help you track and monitor errors in your Node.js applications.