Tutorials Programming Tutorials, Guides & Best Practices

Protect your API from abuse and learn how rate limiting works under the hood.

When developing web apps or APIs, it’s critical to prevent users from overwhelming your server. That’s where rate limiting comes in. In this guide, we’ll build a custom rate limiter in Node.js using Redis—no libraries, no magic, just code you control and understand.

• Open the terminal and type node to enter the Node.js interactive mode.
• Type JavaScript directly:

     > console.log("Hello, Node.js!");
     Hello, Node.js!