express-rate-limiter-sdk

A production-ready, Redis-backed rate limiting SDK for Express using a Sliding Window algorithm.

Built with clean architecture, extensibility, and real-world scalability in mind.

✨ Features

• ✅ True Sliding Window rate limiting (Redis ZSET)
• ✅ Production-safe (no in-memory hacks)
• ✅ Clean, layered architecture
• ✅ Plug-and-play Express middleware
• ✅ Custom key strategies (IP, user, token)
• ✅ Standard & legacy rate-limit headers
• ✅ Fully tested (unit + integration)
• ✅ Easy to extend (Token Bucket, Fixed Window)

📥 Installation

npm install express-rate-limiter-sdk