---
method: POST
path: /api/sync/koreader/stats
auth: device-token
area: koreader
---
<!-- source: internal/handlers/koreader.go:1854 KOReaderHandler.PushKOReaderStats -->

# Push KOReader Stats

Pushes cumulative reading seconds for a book; only the delta above the
stored watermark becomes a reading_history session.

## Example request

```json example-request
{
  "total_seconds": 3600
}
```

## Example response

```json example-response
{
  "total_seconds": 3600,
  "watermark": 0,
  "delta_seconds": 3600,
  "session_recorded": true,
  "session_seconds": 3600
}
```

UNVERIFIED: the request body also carries the koreader book reference fields (md5, title, etc.) used to resolve the book; field set not copied here.