🚦 @febin52/rate-limiter-flexible

In-memory token bucket rate limiter for Node APIs, web workers, and frontend UI user action throttling.

A flexible, high-throughput Token Bucket rate limiter designed to prevent API spamming, brute-force requests, and UI event floods.

🚀 Features

• ⚡ Token Bucket Algorithm: Smooth traffic spikes and enforce strict rate limits.
• 📦 Zero Dependencies: Lightweight, memory-conscious data structures.
• 🎯 Simple API: Easy boolean tryConsume() checking.

📦 Installation

npm install @febin52/rate-limiter-flexible

💡 Usage

import { RateLimiter } from '@febin52/rate-limiter-flexible';

// Allow 5 tokens per 1000ms (1 second)
const limiter = new RateLimiter({ tokensPerInterval: 5, intervalMs: 1000 });

if (limiter.tryConsume(1)) {
  // Request allowed
  handleApiCall();
} else {
  // Rate limit exceeded (429)
  console.warn('Rate limit exceeded. Please try again later.');
}

🔗 Links

• NPM Package: https://www.npmjs.com/package/@febin52/rate-limiter-flexible
• GitHub Repository: https://github.com/febin52/rate-limiter-flexible
• Issue Tracker: https://github.com/febin52/rate-limiter-flexible/issues

📄 License

MIT © Febin Francis