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bookhoard/docs/developer/api/websocket/protocol.md
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john-okeefe b44e4e4709 docs: remove Phase X placeholders from API documentation
Clean up API documentation files by removing Phase X references:

Remove 'API Explorer will be inserted here in Phase X' placeholders from:
- 70+ API endpoint documentation files
- Authentication endpoints (login, logout, register, refresh)
- User endpoints (profile, settings, password)
- Device endpoints (registration, sync, shelves)
- Library endpoints (CRUD, folders, visibility)
- Media endpoints (items, progress, highlights, notes)
- Admin endpoints (users, analytics)
- Sync endpoints (Kobo, KOReader)
- OPDS endpoints
- Scanner endpoints
- Queue endpoints

These placeholders were from planning documents and have no meaning
to API consumers. The documentation is now clean and ready for use.
2026-02-13 21:50:44 -05:00

106 lines
1.7 KiB
Markdown

# WebSocket Protocol
Real-time sync events broadcast to connected clients.
## Connect to WebSocket
**Endpoint**: `WS /ws/sync?token=<token>`
### Connection Parameters
| Parameter | Type | Required | Description |
|-----------|------|-----------|-------------|
| token | string | Yes | JWT authentication token |
### Example Connection
```javascript
const ws = new WebSocket('wss://bookhoard.com/ws/sync?token=eyJhbG...');
```
## Message Format
All messages are JSON objects with a `type` field.
### Client → Server Messages
#### Ping (Heartbeat)
```json
{
"type": "ping"
}
```
Keep connection alive. Server responds with `pong`.
### Server → Client Messages
#### Progress Update
```json
{
"type": "progress_update",
"timestamp": "2026-01-31T10:00:00Z",
"data": {
"book_id": "uuid",
"progress": {
"percentage": 0.45678,
"epubcfi": "epubcfi(/6/4/2:15)",
"chapter": 3
},
"annotations": {}
},
"source_device": {
"id": "device-uuid",
"name": "My Kobo",
"type": "kobo"
}
}
```
Broadcast when any device updates reading progress.
#### Conflict Detected
```json
{
"type": "conflict",
"timestamp": "2026-01-31T10:00:00Z",
"data": {
"book_id": "uuid",
"conflict_id": "uuid",
"conflict_type": "progress"
}
}
```
Broadcast when a sync conflict is detected.
#### Pong
```json
{
"type": "pong"
}
```
Server response to client `ping`.
## Connection Management
- **Heartbeat**: Send `ping` every 30 seconds
- **Reconnect**: Use exponential backoff if connection drops
- **Authentication**: Token must be valid for connection
- **Rate Limits**: 60 messages/minute per connection
## Error Handling
```json
{
"type": "error",
"message": "Invalid token",
"code": "AUTH_FAILED"
}
```