Edge Functions

V8-based lightweight functions running at the edge. Ideal for simple APIs, KV storage access, and ultra-low latency responses.

Runtime: V8 (like Cloudflare Workers) — NOT Node.js. Do NOT use Node.js built-ins or npm packages.

⚠️ Response.json() is NOT available in this V8 runtime. Always use new Response(JSON.stringify(data), { headers: { 'Content-Type': 'application/json' } }) instead.

Basic function

File: edge-functions/api/hello.js

export default function onRequest(context) {
  return new Response('Hello from Edge Functions!');
}

Access: GET /api/hello