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canvas-website/src/automerge
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Jeff Emmett c6ed0b77d8 fix: register Calendar and Drawfast shapes in automerge store 
Added missing Calendar and Drawfast shapes to the automerge store
schema registration to fix ValidationError when using these tools.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
 		2025-12-24 10:36:51 -05:00
..
AutomergeToTLStore.ts feat: redesign top-right UI, fix Map interactions and schema validation 2025-12-07 15:21:48 -08:00
CloudflareAdapter.ts fix: register Calendar and Drawfast shapes in automerge store 2025-12-24 10:36:51 -05:00
MinimalSanitization.ts fix: properly validate tldraw fractional indexing format 2025-12-04 06:30:50 -08:00
README.md refactor: remove OddJS dependency and fix Automerge sync 2025-11-16 20:19:02 -07:00
TLStoreToAutomerge.ts feat: implement binary Automerge CRDT sync and open-mapping module 2025-12-04 19:45:02 -08:00
default_store.ts everything working in dev 2025-11-10 11:06:13 -08:00
documentIdMapping.ts feat: fix Holon shape H3 validation + offline persistence + geometry error handling 2025-11-29 21:36:02 -08:00
index.ts everything working in dev 2025-11-10 11:06:13 -08:00
useAutomergeStoreV2.ts fix: register Calendar and Drawfast shapes in automerge store 2025-12-24 10:36:51 -05:00
useAutomergeSync.ts final update fix old data conversion 2025-11-10 15:38:53 -08:00
useAutomergeSyncRepo.ts feat: add offline storage fallback for browser reload 2025-12-14 23:57:26 -05:00

README.md

Automerge Integration for TLdraw

This directory contains the Automerge-based sync implementation that replaces the TLdraw sync system.

Files

  • AutomergeToTLStore.ts - Converts Automerge patches to TLdraw store updates
  • TLStoreToAutomerge.ts - Converts TLdraw store changes to Automerge document updates
  • useAutomergeStoreV2.ts - Core React hook for managing Automerge document state with TLdraw
  • useAutomergeSync.ts - Main sync hook that replaces useSync from TLdraw (uses V2 internally)
  • CloudflareAdapter.ts - Adapter for Cloudflare Durable Objects and R2 storage
  • default_store.ts - Default TLdraw store structure for new documents
  • index.ts - Main exports

Benefits over TLdraw Sync

  1. Better Conflict Resolution: Automerge's CRDT nature handles concurrent edits more elegantly
  2. Offline-First: Works seamlessly offline and syncs when reconnected
  3. Smaller Sync Payloads: Only sends changes (patches) rather than full state
  4. Cross-Session Persistence: Better handling of data across different devices/sessions
  5. Automatic Merging: No manual conflict resolution needed

Usage

Replace the TLdraw sync import:

// Old
import { useSync } from "@tldraw/sync"

// New
import { useAutomergeSync } from "@/automerge/useAutomergeSync"

The API is identical, so no other changes are needed in your components.

Cloudflare Integration

The system uses:

  • Durable Objects: For real-time WebSocket connections and document state management
  • R2 Storage: For persistent document storage
  • Automerge Network Adapter: Custom adapter for Cloudflare's infrastructure

Migration

To switch from TLdraw sync to Automerge sync:

  1. Update the Board component to use useAutomergeSync
  2. Deploy the new worker with Automerge Durable Object
  3. The CloudflareAdapter will automatically connect to /connect/{roomId} via WebSocket

The migration is backward compatible - the system will handle both legacy and new document formats.