cloudflare-durable-objects
Cloudflare Durable Objects
Status: Production Ready ✅ Last Updated: 2025-11-25 Dependencies: cloudflare-worker-base (recommended) Latest Versions: wrangler@4.50.0+, @cloudflare/workers-types@4.20251125.0+ Official Docs: https://developers.cloudflare.com/durable-objects/
Table of Contents
What are Durable Objects? • Quick Start • When to Load References • Class Structure • State API • WebSocket Hibernation • Alarms • RPC vs HTTP • Stubs & Routing • Migrations • Common Patterns • Critical Rules • Known Issues
What are Durable Objects?
Globally unique, stateful objects with single-point coordination, strong consistency (ACID), WebSocket Hibernation (thousands of connections), SQLite storage (1GB), and alarms API.
Use for: Chat rooms, multiplayer games, rate limiting, session management, leader election, stateful workflows
Quick Start (10 Minutes)
Option 1: Scaffold New DO Project
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