# Client Class Documentation The following parameters are configurable for the API Client: | Parameter | Type | Description | | --- | --- | --- | | `http_client_instance` | `HttpClient` | The Http Client passed from the sdk user for making requests | | `override_http_client_configuration` | `bool` | The value which determines to override properties of the passed Http Client from the sdk user | | `http_call_back` | `HttpCallBack` | The callback value that is invoked before and after an HTTP call is made to an endpoint | | `timeout` | `float` | The value to use for connection timeout.
**Default: 60** | | `max_retries` | `int` | The number of times to retry an endpoint call if it fails.
**Default: 0** | | `backoff_factor` | `float` | A backoff factor to apply between attempts after the second try.
**Default: 2** | | `retry_statuses` | `Array of int` | The http statuses on which retry is to be done.
**Default: [408, 413, 429, 500, 502, 503, 504, 521, 522, 524]** | | `retry_methods` | `Array of string` | The http methods on which retry is to be done.
**Default: ['GET', 'PUT']** | | `x_emby_token` | `string` | API key header parameter | The API client can be initialized as follows: ```python from jellyfinapi.jellyfinapi_client import JellyfinapiClient from jellyfinapi.configuration import Environment client = JellyfinapiClient( x_emby_token='X-Emby-Token', environment=Environment.PRODUCTION,) ``` ## Jellyfin API Client The gateway for the SDK. This class acts as a factory for the Controllers and also holds the configuration of the SDK. ## Controllers | Name | Description | | --- | --- | | activity_log | Gets ActivityLogController | | api_key | Gets ApiKeyController | | artists | Gets ArtistsController | | audio | Gets AudioController | | branding | Gets BrandingController | | channels | Gets ChannelsController | | client_log | Gets ClientLogController | | collection | Gets CollectionController | | configuration | Gets ConfigurationController | | dashboard | Gets DashboardController | | devices | Gets DevicesController | | display_preferences | Gets DisplayPreferencesController | | dlna | Gets DlnaController | | dlna_server | Gets DlnaServerController | | dynamic_hls | Gets DynamicHlsController | | endpoints | Gets EndpointsController | | environment | Gets EnvironmentController | | filter | Gets FilterController | | genres | Gets GenresController | | hls_segment | Gets HlsSegmentController | | image | Gets ImageController | | image_by_name | Gets ImageByNameController | | instant_mix | Gets InstantMixController | | item_lookup | Gets ItemLookupController | | item_refresh | Gets ItemRefreshController | | items | Gets ItemsController | | library | Gets LibraryController | | item_update | Gets ItemUpdateController | | library_structure | Gets LibraryStructureController | | live_tv | Gets LiveTvController | | localization | Gets LocalizationController | | media_info | Gets MediaInfoController | | movies | Gets MoviesController | | music_genres | Gets MusicGenresController | | notifications | Gets NotificationsController | | open_subtitles | Gets OpenSubtitlesController | | package | Gets PackageController | | persons | Gets PersonsController | | playlists | Gets PlaylistsController | | playstate | Gets PlaystateController | | plugins | Gets PluginsController | | quick_connect | Gets QuickConnectController | | remote_image | Gets RemoteImageController | | scheduled_tasks | Gets ScheduledTasksController | | search | Gets SearchController | | session | Gets SessionController | | startup | Gets StartupController | | studios | Gets StudiosController | | subtitle | Gets SubtitleController | | suggestions | Gets SuggestionsController | | sync_play | Gets SyncPlayController | | system | Gets SystemController | | time_sync | Gets TimeSyncController | | tmdb | Gets TmdbController | | trailers | Gets TrailersController | | trakt | Gets TraktController | | tv_shows | Gets TvShowsController | | universal_audio | Gets UniversalAudioController | | user | Gets UserController | | user_library | Gets UserLibraryController | | user_views | Gets UserViewsController | | video_attachments | Gets VideoAttachmentsController | | videos | Gets VideosController | | years | Gets YearsController |