Bun has been making waves as a faster JavaScript runtime, and Elysia provides an elegant framework for building APIs on top of it. Let's build a production-ready API and see how it compares to traditional Node.js setups.

Why Bun + Elysia?

Traditional Node.js APIs often struggle with performance bottlenecks. Bun's architecture promises significant improvements:

  • 3x faster startup times
  • Built-in TypeScript support
  • Native bundler and test runner
  • Web-standard APIs by default

Setting Up the Project

First, install Bun and create a new project:

# Install Bun
curl -fsSL https://bun.sh/install | bash

# Create new project
mkdir bun-api && cd