⚡ Caching Proxy Server

A simple, performant caching proxy server built with Express, Redis, and SQLite (via Drizzle ORM). It intercepts requests, caches responses on disk and in Redis, and serves them on subsequent hits with expiration logic.

🧠 Features

• ✅ Caches HTTP responses (filesystem + Redis)
• ✅ Redis-based fast lookup (with TTL support)
• ✅ Persistent metadata storage via SQLite (Drizzle ORM)
• ✅ File-based caching with hashed file paths
• ✅ Automatic cache invalidation after 24 hours
• ✅ Custom headers and content-type preservation
• ✅ CLI-friendly logs (X-Cache: HIT, MISS, HIT-REDIS)
• ✅ Graceful fallback to origin if not cached

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🛠 Setup

1. Clone the repository

git clone https://github.com/your-username/caching-proxy-server.git
cd caching-proxy-server

2. Install Dependency

npm install

3. Setup Redis

# On Linux/macOS
redis-server

# Or use Docker
docker run --name redis -p 6379:6379 -d redis

4. Drizzle ORM with SQL setup

npx drizzle-kit generate:sqlite
npx drizzle-kit push:sqlite

5. Start your server

npm run dev