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Adds an Audiobookshelf provider for the library check, next to the Calibre one. It reads the server over its REST API (title, author, ISBN and ASIN per item), answers for audiobooks, and has its settings in General with a test button that uses the unsaved form values. Read only. The Hardcover sync and automatic downloads now fail closed when an enabled library cannot be read: the sync skips its cycle and an automatic download holds the request. A library that listed items at the last index and now lists none counts as a failed read. Badges still fail open.
6.5 KiB
Hardcover Sync
Configure in Settings → Hardcover Sync.
Hardcover Sync pulls books from your Hardcover reading shelves into Shelfmark as requests, optionally downloads them without an admin picking a release, and can skip books you already own in a library you have set up under Library Check. Every part is opt-in and off by default; the tab does nothing until you enable it.
Capabilities
Shelf sync
On a schedule, Shelfmark reads the selected Hardcover shelf (by default Want to Read) through the Hardcover metadata provider and creates a pending request for each book that is not already known. Requests carry Hardcover's metadata, including the cover, and are owned by the lowest-id admin account.
A book is skipped when:
- a request with the same Hardcover book id already exists, in any status
- a download with the same title and author is already in the download history
- the library check (below) says it is already in your library
- a pending request with the same title, author, and content type already exists
Automatic downloads
When enabled, each pending request that came from Hardcover is searched across your release sources in the configured priority order. The first source that yields a strict match wins, and the best candidate from that source is queued through the normal request fulfilment path, so it appears in the activity view and download history exactly like a request an admin approved.
A release is a strict match only when all of the following hold:
- at least 85% of the significant title words appear in the release title
- the author's surname appears in the release title, indexer name, or author field
- the release is an audiobook: an audiobook format (
m4b,mp3, or your configured audiobook formats), or "audiobook"/"unabridged" in the title. Ebook-only formats such asepubandpdfare rejected - for torrents, seeders meet Minimum seeders; other protocols ignore this check
Among matching releases from the winning source, m4b outranks mp3, then more seeders, then larger size. If no source produces a confident match the request stays pending for manual review; nothing is guessed.
Library check
Both shelf sync and automatic downloads ask the libraries you have enabled under Library Check whether the book is already there, for the content type being requested, and skip it if so. There is no separate switch on this tab. A library that is not enabled, or that does not hold the requested content type, never causes a skip.
The check fails closed here: if an enabled library cannot be read and has not been read before, the sync cycle is skipped and an automatic download is held, and the request stays pending until the next cycle. Skipping is the safe side, because carrying on would request or download books the library already holds. Badges in search results still fail open.
Settings
| Key | Label | Default | Notes |
|---|---|---|---|
HARDCOVER_SYNC_ENABLED |
Enable scheduled sync | Off | Runs shelf sync on the interval below |
HARDCOVER_SYNC_TOKEN |
Hardcover API Token | — | Leave blank to reuse the Hardcover metadata provider's token |
HARDCOVER_SYNC_STATUSES |
Shelves to sync | Want to Read | Hardcover reading status to pull from |
HARDCOVER_SYNC_CONTENT_TYPE |
Request as | Audiobooks | Content type given to synced requests and targeted by automatic downloads |
HARDCOVER_SYNC_INTERVAL |
Sync interval | 6 | Combined with the unit below |
HARDCOVER_SYNC_INTERVAL_UNIT |
Interval unit | Hours | Minutes or hours. The effective interval never drops below 60 seconds |
AUTO_DOWNLOAD_ENABLED |
Enable automatic downloads | Off | Auto-approve and queue strict matches for Hardcover requests |
AUTO_DOWNLOAD_SOURCE_PRIORITY |
Source priority | All usable sources | Drag to order. Sources you disable here, or that are not configured, are skipped |
AUTO_DOWNLOAD_MIN_SEEDERS |
Minimum seeders (torrents) | 1 | Torrent releases below this are ignored |
One action button sits at the bottom of the tab:
- Sync now runs a sync and automatic-download pass immediately using the saved settings. Sync runs even when scheduled sync is off; automatic downloads still require their own toggle.
Request Flow
- Shelf sync creates a pending request per new Hardcover book, with cover, year, and subtitle where Hardcover has them.
- If automatic downloads are enabled, the request is searched source by source and the first strict match is queued through the normal fulfil path. The request becomes fulfilled and its delivery state is tracked like any other.
- If no source yields a confident match, the request stays pending in the admin queue for manual review, exactly as if a user had requested the book.
Only requests whose provider is Hardcover are considered for automatic downloads, and requests that have already been dispatched are left alone.
Scheduler
The scheduler starts with the app and waits 60 seconds before its first cycle. Each cycle runs a shelf sync (when scheduled sync is enabled) followed by an automatic-download pass (when that is enabled), then sleeps for the configured interval. Intervals shorter than 60 seconds are raised to 60 seconds so a typo cannot hammer the Hardcover API. When neither toggle is on the scheduler idles.
Only one run happens at a time. If a scheduled cycle is in progress, Sync now reports that a sync is already running.
Troubleshooting
Sync adds nothing and the log says "no Hardcover token configured" — set Hardcover API Token on this tab, or configure the token on the Hardcover metadata provider. A sync without a usable token counts as an error and creates no requests.
Requests appear but nothing downloads — check Enable automatic downloads is on, that Source priority contains at least one configured source that supports audiobooks, and look for no strict match lines in the log. Lowering Minimum seeders helps on quiet trackers; loosening the title or author match is deliberately not an option.
Books you own keep being added — enable the library check for the format you request (see Library Check) and use its test button. A library that cannot be read shows up in the log as a skipped cycle.
Too many requests at once — the first sync of a large shelf creates one request per book, and the per-user pending limit from Users & Requests does not apply to synced requests. Start with a shelf you are happy to see in the queue in full.