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.