Cloudflare Workers Cheat Sheet

npm create cloudflare@latest my-worker   # Scaffold a new Workercd my-workernpx wrangler login                       # Authenticate with Cloudflarenpx wrangler dev                         # Run locally with hot reloadnpx wrangler deploy                      # Deploy to productionnpx wrangler tail                        # Stream live logs from a deployed Workernpx wrangler kv:namespace create MY_KV   # Create a KV namespacenpx wrangler secret put API_KEY          # Store an encrypted secret

export default {  async fetch(request, env, ctx) {    const url = new URL(request.url);    if (url.pathname === '/api/time') {      return new Response(JSON.stringify({ now: Date.now() }), {        headers: { 'content-type': 'application/json' },      });    }    return new Response('Not found', { status: 404 });  },};

name = "my-worker"main = "src/index.js"compatibility_date = "2024-01-01"[[kv_namespaces]]binding = "MY_KV"id = "abcd1234"[vars]ENVIRONMENT = "production"[[routes]]pattern = "example.com/api/*"zone_name = "example.com"