How can I implement error handling in my Express.js application?

How can I implement error handling in my Express.js application?

You can use middleware for error handling in Express.js. Libraries like 'express-async-errors' and 'http-errors' can help.

Can you show me an example of using 'http-errors'?

Sure! First, install it using npm: npm install http-errors. Then, you can create an error like this: const createError = require('http-errors'); app.use((req, res, next) => { next(createError(404)); });.

What about handling async errors?

For async errors, you can use 'express-async-errors'. Just require it at the top of your file, and it will catch errors in async routes automatically.

Are there any best practices for error handling in Express?

Yes! Always log errors, send user-friendly messages, and avoid exposing stack traces in production.