🚀 Building a Serverless API with Cloudflare Workers (Complete Guide) Modern applications don’t always need a traditional backend. With Cloudflare Workers , you can build fast, scalable APIs that run at the edge—without managing servers. In this guide, you’ll learn how to build a serverless API with persistent storage using Workers + KV. 📌 Why Cloudflare Workers? ⚡ Runs on edge locations worldwide 💸 Generous free tier 🔧 No server management 🌍 Low latency for global users Perfect for: Browser extensions Lightweight apps Sync services Logging pipelines (SIEM feeders 👀) 🏗️ Architecture Overview Client (Browser Extension / App) ↓ Cloudflare Worker (API Layer) ↓ KV Storage (Persistent Data) Enter fullscreen mode Exit fullscreen mode 🧰 Prerequisites Node.js installed Cloudflare account Wrangler CLI Install Wrangler: npm install -g wrangler wrangler login Enter fullscreen mode Exit fullscreen mode ⚙️ Project Setup wrangler init my-worker-api cd my-worker-api Enter fullscreen mode Exit fullscreen mode 🧾…