durable-objects

1# Durable Objects
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3Build stateful, coordinated applications on Cloudflare's edge using Durable Objects.
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5## Retrieval Sources
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7Your knowledge of Durable Objects APIs and configuration may be outdated. **Prefer retrieval over pre-training** for any Durable Objects task.
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9| Resource | URL |
10|----------|-----|
11| Docs | https://developers.cloudflare.com/durable-objects/index.md |
12| API Reference | https://developers.cloudflare.com/durable-objects/api/index.md |
13| Best Practices | https://developers.cloudflare.com/durable-objects/best-practices/index.md |
14| Examples | https://developers.cloudflare.com/durable-objects/examples/index.md |
15| Roles and permissions | https://developers.cloudflare.com/workers/authorization/durable-objects/index.md |
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17Fetch the relevant doc page when implementing features.
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19## When to Use
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21- Creating new Durable Object classes for stateful coordination
22- Implementing RPC methods, alarms, or WebSocket handlers
23- Reviewing existing DO code for best practices
24- Configuring wrangler.jsonc/toml for DO bindings and migrations
25- Writing tests with Cloudflare’s Vitest integration
26- Designing sharding strategies and parent-child relationships
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28## Reference Documentation
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30- `./references/rules.md` - Core rules, storage, concurrency, RPC, alarms
31- [Testing reference](./references/testing.md) - Current Vitest documentation, migration choices, and test selection
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