Implementing a rate limiter in Express using the express-rate-limit middleware is a straightforward process. This middleware helps protect your server from abuse by limiting the number of requests a client can make in a specified time window. Below is a step-by-step guide on how to implement a rate limiter in Express:
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Why we need rate limiter?
A rate limiter is crucial in web applications to prevent abuse and ensure fair usage of resources. By imposing limits on the number of requests a user or IP address can make within a specific time frame, a rate limiter safeguards against scenarios such as brute-force attacks, API abuse, or unintentional spikes in traffic. This mechanism helps maintain server stability, prevents service degradation, and enhances security by mitigating the risk of overwhelming the system with an excessive volume of requests. In essence, a rate limiter acts as a protective barrier, promoting responsible and sustainable use of web services while safeguarding against potential disruptions or malicious activities.
Steps to Implement Rate limiter
1. Set Up in Your Express App
npm init
npm install -s express express-rate-limit
2. Create Express App
3. Setup Rate limiting middleware
4. Add Middleware to Express App
Or add it to specific route
And there you have it! You've now got a rate limiter in your Express app, protecting it from excessive requests. Feel free to adjust the numbers and messages to fit your app's personality and usage patterns. Happy coding! 🚀