How to Optimize Your Node.js API

In this article, I will guide you through the best techniques to optimize Node.js APIs.

Prerequisites

To get the most out of this article, you will need an understanding of the following concepts:

• Node.js setup and installation
• How to build APIs with Node
• How to use the Postman tool
• How JavaScript async/await works
• How to work with a basic Redis application

What API Optimization Means

Optimizing your API involves reducing response times. Faster response times lead to faster API.

The tips shared below will help you optimize response time, latency, errors, throughput, CPU and memory usage.

How to Optimize Node.js APIs

1. Always Use Asynchronous Functions

Async functions are like the heart of JavaScript. So, the best we can do to optimize CPU usage is to write asynchronous functions to perform nonblocking I/O operations.

I/O operations include the processes which perform read and write data operations. It can be the database, cloud storage, or any local storage disk on which the I/O operations…