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bookhoard/docs/api/sync/kobo_protocol.md
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john-okeefe 3e81477341 docs: add sync protocols and WebSocket API documentation
Phase 2 part 7: Add real-time sync protocol documentation
- KOReader Protocol: progress sync, metadata fetch
- Kobo Protocol: markup sync, library fetch
- WebSocket: real-time events (progress updates, conflicts)
- Include message format examples for all protocols
2026-02-02 08:52:13 -05:00

2.3 KiB

Kobo Sync Protocol

Kobo uses a proprietary sync protocol with JSON payloads.

Kobo Markup Sync

Endpoint: POST /api/sync/kobo/markup Auth: Device token required Content-Type: application/json

Request Headers

Header Type Required Description
Authorization string Yes Bearer device token
x-kobo-device string Yes JSON device info
Content-Type string Yes application/json

Request Body

Field Type Required Description
ReadingSync array No Array of reading progress data
ReadingSync[].ContentId string Yes Book UUID
ReadingSync[].PercentRead float Yes Progress percentage (0-100)
ReadingSync[].EntitlementId string Yes Kobo entitlement ID
ReadingSync[].RemainingTimeMinutes integer No Estimated remaining time
ReadingSync[].LastModified string Yes ISO 8601 timestamp
BookmarkSync array No Array of bookmarks/highlights

Example Request

POST /api/sync/kobo/markup
Authorization: Bearer device-token
x-kobo-device: {"DeviceId":"device-id","Model":"Kobo Clara"}
Content-Type: application/json

{
  "ReadingSync": [
    {
      "ContentId": "book-uuid",
      "PercentRead": 45.6,
      "EntitlementId": "entitlement-id",
      "RemainingTimeMinutes": 120,
      "LastModified": "2026-01-30T20:00:00Z"
    }
  ],
  "BookmarkSync": [
    {
      "ContentId": "book-uuid",
      "BookmarkText": "highlighted text",
      "BookmarkType": "annotation",
      "BookmarkTitle": "Chapter 3"
    }
  ]
}

Response (200 OK)

{
  "Status": "Success",
  "MarkupsSynced": 5,
  "BookmarksSynced": 3
}

Kobo Library Fetch

Endpoint: GET /api/sync/kobo/library Auth: Device token required

Example Request

GET /api/sync/kobo/library
Authorization: Bearer device-token

Response (200 OK)

{
  "library_sync": [
    {
      "ContentId": "book-uuid",
      "ContentType": "6",
      "Title": "Book Title",
      "Author": "Author Name",
      "PercentRead": 42.3,
      "PagesRemaining": 115,
      "BookmarkCount": 3,
      "LastModified": "2026-01-30T20:00:00Z"
    }
  ]
}

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