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

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

There are several strategies you can use to optimize performance in Express.js, such as using middleware efficiently, caching responses, and minimizing the number of database queries.

What middleware should I focus on for better performance?

You should consider using compression middleware to reduce response sizes, and helmet for security headers, which can also improve performance.

How can caching help with performance?

Caching can significantly reduce response times by storing frequently requested data in memory, so it doesn't need to be fetched from the database every time.

Are there any tools to monitor performance?

Yes, tools like New Relic, PM2, and Express-status-monitor can help you track performance metrics and identify bottlenecks.