How can I improve the performance of my Express.js application?

How can I improve the performance of my Express.js application?

There are several strategies you can use to enhance the performance of your Express.js app. Would you like to focus on middleware optimization, database queries, or caching?

Let's start with middleware optimization.

Great choice! You can minimize the number of middleware functions, use built-in middleware when possible, and ensure that your middleware is efficient. Are you using any specific middleware that you think might be slowing things down?

Yes, I'm using body-parser and some custom middleware.

Consider using the built-in body parsing middleware in Express 4.16.0 and later, as it's more efficient. Also, review your custom middleware for any unnecessary processing.