How can I debug 404 errors in my Express.js application?

How can I debug 404 errors in my Express.js application?

To debug 404 errors in Express.js, start by checking your route definitions. Ensure that the paths are correctly defined.

What if the routes are correct but I'm still getting 404 errors?

If the routes are correct, check if the middleware is properly set up and that the server is listening on the right port.

How can I log the requests to see what's being hit?

You can use middleware like morgan to log requests. Just install it and add it to your app like this: app.use(morgan('dev'));.

Are there any tools to help with debugging?

Yes, tools like Postman can help you test your routes, and you can also use the built-in Node.js debugger.