Cloudflare Workers Cheat Sheet

Edge-first scripts, KV storage, and durable objects

Last Updated: November 21, 2025

Runtime Concepts

Concept Purpose
Worker Edge JS script executed per request
KV Global key-value storage
Durable Objects Stateful coordination
Routes Map hostnames to scripts

Commands

wrangler generate
Bootstrap a worker
wrangler publish
Deploy to Cloudflare
wrangler secret put
Store API keys
wrangler tail
Stream logs

Edge Tips

Keep response sizes small, cache aggressively, and isolate secrets in KV.

💡 Pro Tip: Bundle small scripts, monitor CPU time, and use durable objects for coordination.
← Back to DevOps & Cloud | Browse all categories | View all cheat sheets