The progress documentation described GET/POST /api/progress/:id — endpoints that do not exist in the router — while the endpoint every client actually uses (GET/PUT/DELETE /api/media-items/:id/progress) had no field-level docs at all. New: - progress/position-contract.md: the canonical position model — server as position authority, the three-tier submission (percentage / context_text / epubcfi), ingest verification and healing, the restore handles, the OPF spine numbering hazard (canonical CFI spine steps include linear="no" items; clients resolve documents by anchor_href and land by css_selector + char_offset, never by spine step), the offset currencies (UTF-16 at the wire, runes internal), and context_text rules. - progress/get_media_progress.md and update_media_progress.md: the real endpoints with full field tables, conditionality of the restore handles, the first-page anti-clobber guard, and healed-response semantics. - progress/delete_media_progress.md: the real DELETE route. - koreader/sync_progress.md and koreader/get_metadata.md rewritten to the actual payloads: the plugin sends a single-book array whose "epubcfi" field is a CRE xpointer; the metadata response navigates via koreader_xpointer (canonical CFI converted back to CRE), with page as the canonical locator for fixed-layout books. Removed: the five files documenting the nonexistent /api/progress/:id GET/POST/DELETE endpoints. Kept get_progress_history.md (that route exists). The legacy developer/api-reference.md and the indexed api/api-reference.md progress sections now match the wire and link the new docs; the duplicate "Universal Progress" section points at Reading Progress.
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3.0 KiB
Sync Progress
Push reading progress from a KOReader device.
Endpoint: POST /api/sync/koreader/progress
Auth: Required (Device authentication — Authorization: Bearer {device_token})
This is the device-native tier of the Position
Contract: the KOReader payload carries
a CRE xpointer and the server converts it to the canonical standard CFI,
verifies it against the submitted context_text, and heals it on
mismatch — exactly like every other client.
Request Body
| Field | Type | Required | Description |
|---|---|---|---|
books |
array | Yes | One book object (the reference client sends a single-element array). |
sync_mode |
string | No | immediate (default) or manual. |
Book Object
| Field | Type | Required | Description |
|---|---|---|---|
uuid |
string (UUID) | No | Bookhoard UUID, once the device has linked the book via Resolve Book. |
sha256 |
string | Yes | File content hash (64 hex chars) — the primary book identity. |
title |
string | No | Document title. |
authors |
array | No | Author names. |
percentage |
float | Yes | Position as a fraction of the book (0..1). |
context_text |
string | No | Up to 100 whitespace-normalized chars from the current position — enables the server's verification/healing. Strongly recommended. |
page |
int | No | Current page (fixed-layout books). |
total_pages |
int | No | Page count (fixed-layout books). |
epubcfi |
string | Reflowable only | A CRE xpointer (/body/DocFragment[N]/body/...), not a CFI — the field name is historical. Fixed-layout books must omit it and carry their position in page/total_pages. |
file_path |
string | No | Device-local file path (informational). |
device_info |
object | No | { koreader_version, device_model }. |
Example Request
POST /api/sync/koreader/progress
Authorization: Bearer {device_token}
Content-Type: application/json
{
"books": [
{
"uuid": "774641f9-317b-4087-8e04-53bb4392ae56",
"sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
"title": "1984",
"authors": ["George Orwell"],
"percentage": 0.045,
"context_text": "from day to day, but there was none in which Goldstein was not the principal figure. He was the prim",
"page": 14,
"total_pages": 311,
"epubcfi": "/body/DocFragment[1]/body/p[29]/text().598",
"device_info": {
"koreader_version": "v2026.07.1",
"device_model": "emulator"
}
}
],
"sync_mode": "immediate"
}
Response (202 Accepted)
{
"sync_status": "ok",
"books_synced": 1,
"timestamp": "2026-09-26T21:25:09Z"
}
Per-book results and any detected sync conflicts are carried in
book_results and conflicts when present.
Error Responses
| Code | Description |
|---|---|
| 400 | Invalid request format |
| 401 | Device authentication failed |
| 500 | Database error |