# \_mod\_JELLYFIN

Provider ID: `JELLYFIN`\
Version (module): `2.1.0`

{% tabs %}
{% tab title="End users" %}
Jellyfin support in the sync engine.

Use it to sync:

* watchlist
* history

Setup docs:

* [Auth: Jellyfin](/crosswatch/providers/authentication/auth-media-servers/auth-jellyfin.md)
* [Adapter: Jellyfin](/crosswatch/providers/synchronization/adapter-jellyfin.md)
  {% endtab %}

{% tab title="Power users" %}
**Entry point:** `sync/_mod_JELLYFIN.py`

### Provider surface

* `health()`
* `build_index(feature)`
* `add(feature, items)`
* `remove(feature, items)`

### Features

* `watchlist` → `providers/jellyfin/_watchlist.py`
* `history` → `providers/jellyfin/_history.py`

### Capabilities

* `bidirectional: true`
* `provides_ids: false`
* `index_semantics: "present"`

### Config

Config block name:

* `Jellyfin` or `jellyfin`

Common keys:

* `server`, `access_token`, `user_id`
* `verify_ssl` (default `true`)
* `watchlist_mode` (`favorites` or playlist)
* `history_libraries` (optional whitelist)
* `timeout`, `max_retries`

### Gotchas

GUID selection affects matching.

Tune `*_guid_priority` if matches look off.

<details>

<summary>Runtime call flow</summary>

```
Orchestrator
  └─ OPS.build_index(cfg, feature)
       └─ JELLYFINModule.build_index(feature)
            └─ providers/jellyfin/_{feature}.py : build_index(adapter, ...)
```

Writes are symmetric:

```
Orchestrator plan → OPS.add/remove(...)
  └─ JELLYFINModule.add/remove(feature, items, dry_run=...)
       └─ providers/jellyfin/_{feature}.py : add/remove(adapter, items)
```

</details>

<details>

<summary>OPS contract</summary>

* `name()`
* `label()`
* `features()`
* `capabilities()`
* `is_configured(cfg)`
* `build_index(cfg, feature=...)`
* `add(cfg, items, feature=..., dry_run=False)`
* `remove(cfg, items, feature=..., dry_run=False)`
* `health(cfg)`

</details>

<details>

<summary>Full config reference</summary>

Config namespace:

* `cfg["jellyfin"]` (fallback: `cfg["auth"]["jellyfin"]`)

Fields:

* `server`, `access_token`, `user_id`
* `device_id` (default: `crosswatch`)
* `verify_ssl` (default: `true`)
* `timeout` (default: `15.0`)
* `max_retries` (default: `3`)
* `watchlist_mode` (default: `favorites`)
* `watchlist_playlist_name` (default: `Watchlist`)
* `watchlist_query_limit` (default: `25`)
* `watchlist_write_delay_ms` (default: `0`)
* `watchlist_guid_priority` (list)
* `history_query_limit` (default: `25`)
* `history_write_delay_ms` (default: `0`)
* `history_guid_priority` (list)
* `history_libraries` (list)

Dependencies:

* `requires: ['requests']`

</details>
{% endtab %}
{% endtabs %}


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