Rate Limiter Middleware using Neon and Rust

This project demonstrates an IP-based rate-limiting middleware implemented using Rust and integrated with an Express.js application through the Neon framework.

Features

• High-performance IP-based rate limiting using Rust.
• Customizable rate limiting configurations (maximum requests, time window, burst allowance).
• Middleware seamlessly integrates with any Express.js application.
• Real-time stress testing using autocannon.

Project Structure

project/
├── index.js              # Express.js server with Rust-based rate limiter
├── native/
│   ├── Cargo.toml        # Rust dependencies and metadata
│   └── src/
│       └── lib.rs        # Rust implementation of the rate limiter
├── test-rate-limiter.js  # Test script using autocannon
├── package.json          # Node.js dependencies and scripts
└── README.md             # Project documentation

Prerequisites

• Node.js: Install Node.js from nodejs.org.
• Rust: Install Rust and Cargo from rust-lang.org.
• Neon CLI: Install the Neon CLI globally using npm:

  npm install -g neon-cli

Configuration

You can customize the rate-limiting parameters in the Express server (index.js):

const rateLimiter = createRateLimiter(maxRequests, windowSeconds, burstAllowance);

• maxRequests: Maximum number of requests allowed in the time window.
• windowSeconds: Time window in seconds for rate limiting.
• burstAllowance: Number of extra requests allowed temporarily as a burst.