How do I manage middleware order in Express.js?

What is the importance of middleware order in Express.js?

Middleware order is crucial in Express.js because it determines how requests are processed. The order in which middleware is defined affects the flow of request handling, error handling, and response sending.

Can you give me an example of how to set up middleware in the correct order?

Sure! Typically, you would set up your middleware in this order: 1. Application-level middleware (like body-parser), 2. Router-level middleware, 3. Error-handling middleware, and finally, 4. Catch-all middleware for 404 errors.

What happens if I don't follow the correct order?

If you don't follow the correct order, you might encounter issues like requests not being processed as expected, middleware not executing, or errors not being handled properly.

Are there any best practices for organizing middleware?

Yes! It's best to group related middleware together, keep your middleware functions small and focused, and document their purpose for better maintainability.