What are the performance implications of using async middleware in web applications?

What are the performance implications of using async middleware in web applications?

Using async middleware can improve performance by allowing non-blocking operations, but it may introduce overhead.

Can you explain how async middleware differs from synchronous middleware?

Async middleware processes requests without blocking the event loop, while synchronous middleware waits for each operation to complete.

Are there any downsides to using async middleware?

Yes, potential downsides include increased complexity and the risk of unhandled promise rejections.

How can I measure the performance of my async middleware?

You can use profiling tools, logging, and monitoring to measure response times and resource usage.