Convert field string to enum.

Jellyfin.Api/Controllers/ArtistsController.cs

@@ -51,7 +51,7 @@ namespace Jellyfin.Api.Controllers
         /// <param name="limit">Optional. The maximum number of records to return.</param>
         /// <param name="searchTerm">Optional. Search term.</param>
         /// <param name="parentId">Specify this to localize the search to a specific item or folder. Omit to use the root.</param>
-        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimited. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines.</param>
+        /// <param name="fields">Optional. Specify additional fields of information to return in the output.</param>
         /// <param name="excludeItemTypes">Optional. If specified, results will be filtered out based on item type. This allows multiple, comma delimited.</param>
         /// <param name="includeItemTypes">Optional. If specified, results will be filtered based on item type. This allows multiple, comma delimited.</param>
         /// <param name="filters">Optional. Specify additional filters to apply. This allows multiple, comma delimited. Options: IsFolder, IsNotFolder, IsUnplayed, IsPlayed, IsFavorite, IsResumable, Likes, Dislikes.</param>
@@ -86,7 +86,7 @@ namespace Jellyfin.Api.Controllers
             [FromQuery] int? limit,
             [FromQuery] string? searchTerm,
             [FromQuery] string? parentId,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] string? excludeItemTypes,
             [FromQuery] string? includeItemTypes,
             [FromQuery] string? filters,
@@ -260,7 +260,7 @@ namespace Jellyfin.Api.Controllers
         /// <param name="limit">Optional. The maximum number of records to return.</param>
         /// <param name="searchTerm">Optional. Search term.</param>
         /// <param name="parentId">Specify this to localize the search to a specific item or folder. Omit to use the root.</param>
-        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimited. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines.</param>
+        /// <param name="fields">Optional. Specify additional fields of information to return in the output.</param>
         /// <param name="excludeItemTypes">Optional. If specified, results will be filtered out based on item type. This allows multiple, comma delimited.</param>
         /// <param name="includeItemTypes">Optional. If specified, results will be filtered based on item type. This allows multiple, comma delimited.</param>
         /// <param name="filters">Optional. Specify additional filters to apply. This allows multiple, comma delimited. Options: IsFolder, IsNotFolder, IsUnplayed, IsPlayed, IsFavorite, IsResumable, Likes, Dislikes.</param>
@@ -295,7 +295,7 @@ namespace Jellyfin.Api.Controllers
             [FromQuery] int? limit,
             [FromQuery] string? searchTerm,
             [FromQuery] string? parentId,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] string? excludeItemTypes,
             [FromQuery] string? includeItemTypes,
             [FromQuery] string? filters,

Jellyfin.Api/Controllers/ChannelsController.cs

@@ -107,7 +107,7 @@ namespace Jellyfin.Api.Controllers
         /// <param name="sortOrder">Optional. Sort Order - Ascending,Descending.</param>
         /// <param name="filters">Optional. Specify additional filters to apply. This allows multiple, comma delimited. Options: IsFolder, IsNotFolder, IsUnplayed, IsPlayed, IsFavorite, IsResumable, Likes, Dislikes.</param>
         /// <param name="sortBy">Optional. Specify one or more sort orders, comma delimited. Options: Album, AlbumArtist, Artist, Budget, CommunityRating, CriticRating, DateCreated, DatePlayed, PlayCount, PremiereDate, ProductionYear, SortName, Random, Revenue, Runtime.</param>
-        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimited. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines.</param>
+        /// <param name="fields">Optional. Specify additional fields of information to return in the output.</param>
         /// <response code="200">Channel items returned.</response>
         /// <returns>
         /// A <see cref="Task"/> representing the request to get the channel items.
@@ -123,7 +123,7 @@ namespace Jellyfin.Api.Controllers
             [FromQuery] string? sortOrder,
             [FromQuery] string? filters,
             [FromQuery] string? sortBy,
-            [FromQuery] string? fields)
+            [FromQuery] ItemFields[] fields)
         {
             var user = userId.HasValue && !userId.Equals(Guid.Empty)
                 ? _userManager.GetUserById(userId.Value)
@@ -184,7 +184,7 @@ namespace Jellyfin.Api.Controllers
         /// <param name="startIndex">Optional. The record index to start at. All items with a lower index will be dropped from the results.</param>
         /// <param name="limit">Optional. The maximum number of records to return.</param>
         /// <param name="filters">Optional. Specify additional filters to apply. This allows multiple, comma delimited. Options: IsFolder, IsNotFolder, IsUnplayed, IsPlayed, IsFavorite, IsResumable, Likes, Dislikes.</param>
-        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimited. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines.</param>
+        /// <param name="fields">Optional. Specify additional fields of information to return in the output.</param>
         /// <param name="channelIds">Optional. Specify one or more channel id's, comma delimited.</param>
         /// <response code="200">Latest channel items returned.</response>
         /// <returns>
@@ -197,7 +197,7 @@ namespace Jellyfin.Api.Controllers
             [FromQuery] int? startIndex,
             [FromQuery] int? limit,
             [FromQuery] string? filters,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] string? channelIds)
         {
             var user = userId.HasValue && !userId.Equals(Guid.Empty)

Jellyfin.Api/Controllers/GenresController.cs

@@ -52,7 +52,7 @@ namespace Jellyfin.Api.Controllers
         /// <param name="limit">Optional. The maximum number of records to return.</param>
         /// <param name="searchTerm">The search term.</param>
         /// <param name="parentId">Specify this to localize the search to a specific item or folder. Omit to use the root.</param>
-        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimited. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines.</param>
+        /// <param name="fields">Optional. Specify additional fields of information to return in the output.</param>
         /// <param name="excludeItemTypes">Optional. If specified, results will be filtered out based on item type. This allows multiple, comma delimited.</param>
         /// <param name="includeItemTypes">Optional. If specified, results will be filtered in based on item type. This allows multiple, comma delimited.</param>
         /// <param name="filters">Optional. Specify additional filters to apply. This allows multiple, comma delimited. Options: IsFolder, IsNotFolder, IsUnplayed, IsPlayed, IsFavorite, IsResumable, Likes, Dislikes.</param>
@@ -87,7 +87,7 @@ namespace Jellyfin.Api.Controllers
             [FromQuery] int? limit,
             [FromQuery] string? searchTerm,
             [FromQuery] string? parentId,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] string? excludeItemTypes,
             [FromQuery] string? includeItemTypes,
             [FromQuery] string? filters,

Jellyfin.Api/Controllers/InstantMixController.cs

@@ -54,7 +54,7 @@ namespace Jellyfin.Api.Controllers
         /// <param name="id">The item id.</param>
         /// <param name="userId">Optional. Filter by user id, and attach user data.</param>
         /// <param name="limit">Optional. The maximum number of records to return.</param>
-        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimeted. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines, TrailerUrls.</param>
+        /// <param name="fields">Optional. Specify additional fields of information to return in the output.</param>
         /// <param name="enableImages">Optional. Include image information in output.</param>
         /// <param name="enableUserData">Optional. Include user data.</param>
         /// <param name="imageTypeLimit">Optional. The max number of images to return, per image type.</param>
@@ -67,7 +67,7 @@ namespace Jellyfin.Api.Controllers
             [FromRoute, Required] Guid id,
             [FromQuery] Guid? userId,
             [FromQuery] int? limit,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] bool? enableImages,
             [FromQuery] bool? enableUserData,
             [FromQuery] int? imageTypeLimit,
@@ -91,7 +91,7 @@ namespace Jellyfin.Api.Controllers
         /// <param name="id">The item id.</param>
         /// <param name="userId">Optional. Filter by user id, and attach user data.</param>
         /// <param name="limit">Optional. The maximum number of records to return.</param>
-        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimeted. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines, TrailerUrls.</param>
+        /// <param name="fields">Optional. Specify additional fields of information to return in the output.</param>
         /// <param name="enableImages">Optional. Include image information in output.</param>
         /// <param name="enableUserData">Optional. Include user data.</param>
         /// <param name="imageTypeLimit">Optional. The max number of images to return, per image type.</param>
@@ -104,7 +104,7 @@ namespace Jellyfin.Api.Controllers
             [FromRoute, Required] Guid id,
             [FromQuery] Guid? userId,
             [FromQuery] int? limit,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] bool? enableImages,
             [FromQuery] bool? enableUserData,
             [FromQuery] int? imageTypeLimit,
@@ -128,7 +128,7 @@ namespace Jellyfin.Api.Controllers
         /// <param name="id">The item id.</param>
         /// <param name="userId">Optional. Filter by user id, and attach user data.</param>
         /// <param name="limit">Optional. The maximum number of records to return.</param>
-        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimeted. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines, TrailerUrls.</param>
+        /// <param name="fields">Optional. Specify additional fields of information to return in the output.</param>
         /// <param name="enableImages">Optional. Include image information in output.</param>
         /// <param name="enableUserData">Optional. Include user data.</param>
         /// <param name="imageTypeLimit">Optional. The max number of images to return, per image type.</param>
@@ -141,7 +141,7 @@ namespace Jellyfin.Api.Controllers
             [FromRoute, Required] Guid id,
             [FromQuery] Guid? userId,
             [FromQuery] int? limit,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] bool? enableImages,
             [FromQuery] bool? enableUserData,
             [FromQuery] int? imageTypeLimit,
@@ -165,7 +165,7 @@ namespace Jellyfin.Api.Controllers
         /// <param name="name">The genre name.</param>
         /// <param name="userId">Optional. Filter by user id, and attach user data.</param>
         /// <param name="limit">Optional. The maximum number of records to return.</param>
-        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimeted. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines, TrailerUrls.</param>
+        /// <param name="fields">Optional. Specify additional fields of information to return in the output.</param>
         /// <param name="enableImages">Optional. Include image information in output.</param>
         /// <param name="enableUserData">Optional. Include user data.</param>
         /// <param name="imageTypeLimit">Optional. The max number of images to return, per image type.</param>
@@ -178,7 +178,7 @@ namespace Jellyfin.Api.Controllers
             [FromRoute, Required] string name,
             [FromQuery] Guid? userId,
             [FromQuery] int? limit,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] bool? enableImages,
             [FromQuery] bool? enableUserData,
             [FromQuery] int? imageTypeLimit,
@@ -201,7 +201,7 @@ namespace Jellyfin.Api.Controllers
         /// <param name="id">The item id.</param>
         /// <param name="userId">Optional. Filter by user id, and attach user data.</param>
         /// <param name="limit">Optional. The maximum number of records to return.</param>
-        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimeted. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines, TrailerUrls.</param>
+        /// <param name="fields">Optional. Specify additional fields of information to return in the output.</param>
         /// <param name="enableImages">Optional. Include image information in output.</param>
         /// <param name="enableUserData">Optional. Include user data.</param>
         /// <param name="imageTypeLimit">Optional. The max number of images to return, per image type.</param>
@@ -214,7 +214,7 @@ namespace Jellyfin.Api.Controllers
             [FromRoute, Required] Guid id,
             [FromQuery] Guid? userId,
             [FromQuery] int? limit,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] bool? enableImages,
             [FromQuery] bool? enableUserData,
             [FromQuery] int? imageTypeLimit,
@@ -238,7 +238,7 @@ namespace Jellyfin.Api.Controllers
         /// <param name="id">The item id.</param>
         /// <param name="userId">Optional. Filter by user id, and attach user data.</param>
         /// <param name="limit">Optional. The maximum number of records to return.</param>
-        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimeted. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines, TrailerUrls.</param>
+        /// <param name="fields">Optional. Specify additional fields of information to return in the output.</param>
         /// <param name="enableImages">Optional. Include image information in output.</param>
         /// <param name="enableUserData">Optional. Include user data.</param>
         /// <param name="imageTypeLimit">Optional. The max number of images to return, per image type.</param>
@@ -251,7 +251,7 @@ namespace Jellyfin.Api.Controllers
             [FromRoute, Required] Guid id,
             [FromQuery] Guid? userId,
             [FromQuery] int? limit,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] bool? enableImages,
             [FromQuery] bool? enableUserData,
             [FromQuery] int? imageTypeLimit,
@@ -275,7 +275,7 @@ namespace Jellyfin.Api.Controllers
         /// <param name="id">The item id.</param>
         /// <param name="userId">Optional. Filter by user id, and attach user data.</param>
         /// <param name="limit">Optional. The maximum number of records to return.</param>
-        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimeted. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines, TrailerUrls.</param>
+        /// <param name="fields">Optional. Specify additional fields of information to return in the output.</param>
         /// <param name="enableImages">Optional. Include image information in output.</param>
         /// <param name="enableUserData">Optional. Include user data.</param>
         /// <param name="imageTypeLimit">Optional. The max number of images to return, per image type.</param>
@@ -288,7 +288,7 @@ namespace Jellyfin.Api.Controllers
             [FromRoute, Required] Guid id,
             [FromQuery] Guid? userId,
             [FromQuery] int? limit,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] bool? enableImages,
             [FromQuery] bool? enableUserData,
             [FromQuery] int? imageTypeLimit,

Jellyfin.Api/Controllers/ItemsController.cs

@@ -179,7 +179,7 @@ namespace Jellyfin.Api.Controllers
             [FromQuery] string? searchTerm,
             [FromQuery] string? sortOrder,
             [FromQuery] string? parentId,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] string? excludeItemTypes,
             [FromQuery] string? includeItemTypes,
             [FromQuery] string? filters,
@@ -535,7 +535,7 @@ namespace Jellyfin.Api.Controllers
             [FromQuery] int? limit,
             [FromQuery] string? searchTerm,
             [FromQuery] string? parentId,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] string? mediaTypes,
             [FromQuery] bool? enableUserData,
             [FromQuery] int? imageTypeLimit,

Jellyfin.Api/Controllers/LibraryController.cs

@@ -693,7 +693,7 @@ namespace Jellyfin.Api.Controllers
             [FromQuery] string? excludeArtistIds,
             [FromQuery] Guid? userId,
             [FromQuery] int? limit,
-            [FromQuery] string? fields)
+            [FromQuery] ItemFields[] fields)
         {
             var item = itemId.Equals(Guid.Empty)
                 ? (!userId.Equals(Guid.Empty)
@@ -885,7 +885,7 @@ namespace Jellyfin.Api.Controllers
             string? excludeArtistIds,
             Guid? userId,
             int? limit,
-            string? fields,
+            ItemFields[] fields,
             string[] includeItemTypes,
             bool isMovie)
         {

Jellyfin.Api/Controllers/LiveTvController.cs

@@ -117,7 +117,7 @@ namespace Jellyfin.Api.Controllers
         /// <param name="enableImages">Optional. Include image information in output.</param>
         /// <param name="imageTypeLimit">Optional. The max number of images to return, per image type.</param>
         /// <param name="enableImageTypes">"Optional. The image types to include in the output.</param>
-        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimited. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines.</param>
+        /// <param name="fields">Optional. Specify additional fields of information to return in the output.</param>
         /// <param name="enableUserData">Optional. Include user data.</param>
         /// <param name="sortBy">Optional. Key to sort by.</param>
         /// <param name="sortOrder">Optional. Sort order.</param>
@@ -146,7 +146,7 @@ namespace Jellyfin.Api.Controllers
             [FromQuery] bool? enableImages,
             [FromQuery] int? imageTypeLimit,
             [FromQuery] string? enableImageTypes,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] bool? enableUserData,
             [FromQuery] string? sortBy,
             [FromQuery] SortOrder? sortOrder,
@@ -238,7 +238,7 @@ namespace Jellyfin.Api.Controllers
         /// <param name="enableImages">Optional. Include image information in output.</param>
         /// <param name="imageTypeLimit">Optional. The max number of images to return, per image type.</param>
         /// <param name="enableImageTypes">Optional. The image types to include in the output.</param>
-        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimited. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines.</param>
+        /// <param name="fields">Optional. Specify additional fields of information to return in the output.</param>
         /// <param name="enableUserData">Optional. Include user data.</param>
         /// <param name="isMovie">Optional. Filter for movies.</param>
         /// <param name="isSeries">Optional. Filter for series.</param>
@@ -263,7 +263,7 @@ namespace Jellyfin.Api.Controllers
             [FromQuery] bool? enableImages,
             [FromQuery] int? imageTypeLimit,
             [FromQuery] string? enableImageTypes,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] bool? enableUserData,
             [FromQuery] bool? isMovie,
             [FromQuery] bool? isSeries,
@@ -295,7 +295,7 @@ namespace Jellyfin.Api.Controllers
                 IsKids = isKids,
                 IsSports = isSports,
                 IsLibraryItem = isLibraryItem,
-                Fields = RequestHelpers.GetItemFields(fields),
+                Fields = fields,
                 ImageTypeLimit = imageTypeLimit,
                 EnableImages = enableImages
             }, dtoOptions);
@@ -315,7 +315,7 @@ namespace Jellyfin.Api.Controllers
         /// <param name="enableImages">Optional. Include image information in output.</param>
         /// <param name="imageTypeLimit">Optional. The max number of images to return, per image type.</param>
         /// <param name="enableImageTypes">Optional. The image types to include in the output.</param>
-        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimited. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines.</param>
+        /// <param name="fields">Optional. Specify additional fields of information to return in the output.</param>
         /// <param name="enableUserData">Optional. Include user data.</param>
         /// <param name="enableTotalRecordCount">Optional. Return total record count.</param>
         /// <response code="200">Live tv recordings returned.</response>
@@ -350,7 +350,7 @@ namespace Jellyfin.Api.Controllers
             [FromQuery] bool? enableImages,
             [FromQuery] int? imageTypeLimit,
             [FromQuery] string? enableImageTypes,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] bool? enableUserData,
             [FromQuery] bool enableTotalRecordCount = true)
         {
@@ -529,7 +529,7 @@ namespace Jellyfin.Api.Controllers
         /// <param name="enableUserData">Optional. Include user data.</param>
         /// <param name="seriesTimerId">Optional. Filter by series timer id.</param>
         /// <param name="librarySeriesId">Optional. Filter by library series id.</param>
-        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimited. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines.</param>
+        /// <param name="fields">Optional. Specify additional fields of information to return in the output.</param>
         /// <param name="enableTotalRecordCount">Retrieve total record count.</param>
         /// <response code="200">Live tv epgs returned.</response>
         /// <returns>
@@ -564,7 +564,7 @@ namespace Jellyfin.Api.Controllers
             [FromQuery] bool? enableUserData,
             [FromQuery] string? seriesTimerId,
             [FromQuery] Guid? librarySeriesId,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] bool enableTotalRecordCount = true)
         {
             var user = userId.HasValue && !userId.Equals(Guid.Empty)
@@ -661,8 +661,9 @@ namespace Jellyfin.Api.Controllers
                 }
             }
 
+            var fields = RequestHelpers.GetItemFields(body.Fields);
             var dtoOptions = new DtoOptions()
-                .AddItemFields(body.Fields)
+                .AddItemFields(fields)
                 .AddClientFields(Request)
                 .AddAdditionalDtoOptions(body.EnableImages, body.EnableUserData, body.ImageTypeLimit, body.EnableImageTypes);
             return await _liveTvManager.GetPrograms(query, dtoOptions, CancellationToken.None).ConfigureAwait(false);
@@ -684,7 +685,7 @@ namespace Jellyfin.Api.Controllers
         /// <param name="imageTypeLimit">Optional. The max number of images to return, per image type.</param>
         /// <param name="enableImageTypes">Optional. The image types to include in the output.</param>
         /// <param name="genreIds">The genres to return guide information for.</param>
-        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimited. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines.</param>
+        /// <param name="fields">Optional. Specify additional fields of information to return in the output.</param>
         /// <param name="enableUserData">Optional. include user data.</param>
         /// <param name="enableTotalRecordCount">Retrieve total record count.</param>
         /// <response code="200">Recommended epgs returned.</response>
@@ -706,7 +707,7 @@ namespace Jellyfin.Api.Controllers
             [FromQuery] int? imageTypeLimit,
             [FromQuery] string? enableImageTypes,
             [FromQuery] string? genreIds,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] bool? enableUserData,
             [FromQuery] bool enableTotalRecordCount = true)
         {

Jellyfin.Api/Controllers/MoviesController.cs

@@ -65,7 +65,7 @@ namespace Jellyfin.Api.Controllers
         public ActionResult<IEnumerable<RecommendationDto>> GetMovieRecommendations(
             [FromQuery] Guid? userId,
             [FromQuery] string? parentId,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] int categoryLimit = 5,
             [FromQuery] int itemLimit = 8)
         {

Jellyfin.Api/Controllers/MusicGenresController.cs

@@ -52,7 +52,7 @@ namespace Jellyfin.Api.Controllers
         /// <param name="limit">Optional. The maximum number of records to return.</param>
         /// <param name="searchTerm">The search term.</param>
         /// <param name="parentId">Specify this to localize the search to a specific item or folder. Omit to use the root.</param>
-        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimited. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines.</param>
+        /// <param name="fields">Optional. Specify additional fields of information to return in the output.</param>
         /// <param name="excludeItemTypes">Optional. If specified, results will be filtered out based on item type. This allows multiple, comma delimited.</param>
         /// <param name="includeItemTypes">Optional. If specified, results will be filtered in based on item type. This allows multiple, comma delimited.</param>
         /// <param name="filters">Optional. Specify additional filters to apply. This allows multiple, comma delimited. Options: IsFolder, IsNotFolder, IsUnplayed, IsPlayed, IsFavorite, IsResumable, Likes, Dislikes.</param>
@@ -86,7 +86,7 @@ namespace Jellyfin.Api.Controllers
             [FromQuery] int? limit,
             [FromQuery] string? searchTerm,
             [FromQuery] string? parentId,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] string? excludeItemTypes,
             [FromQuery] string? includeItemTypes,
             [FromQuery] string? filters,

Jellyfin.Api/Controllers/PersonsController.cs

@@ -51,7 +51,7 @@ namespace Jellyfin.Api.Controllers
         /// <param name="limit">Optional. The maximum number of records to return.</param>
         /// <param name="searchTerm">The search term.</param>
         /// <param name="parentId">Specify this to localize the search to a specific item or folder. Omit to use the root.</param>
-        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimited. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines.</param>
+        /// <param name="fields">Optional. Specify additional fields of information to return in the output.</param>
         /// <param name="excludeItemTypes">Optional. If specified, results will be filtered out based on item type. This allows multiple, comma delimited.</param>
         /// <param name="includeItemTypes">Optional. If specified, results will be filtered in based on item type. This allows multiple, comma delimited.</param>
         /// <param name="filters">Optional. Specify additional filters to apply. This allows multiple, comma delimited. Options: IsFolder, IsNotFolder, IsUnplayed, IsPlayed, IsFavorite, IsResumable, Likes, Dislikes.</param>
@@ -86,7 +86,7 @@ namespace Jellyfin.Api.Controllers
             [FromQuery] int? limit,
             [FromQuery] string? searchTerm,
             [FromQuery] string? parentId,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] string? excludeItemTypes,
             [FromQuery] string? includeItemTypes,
             [FromQuery] string? filters,

Jellyfin.Api/Controllers/PlaylistsController.cs

@@ -133,7 +133,7 @@ namespace Jellyfin.Api.Controllers
         /// <param name="userId">User id.</param>
         /// <param name="startIndex">Optional. The record index to start at. All items with a lower index will be dropped from the results.</param>
         /// <param name="limit">Optional. The maximum number of records to return.</param>
-        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimited. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines.</param>
+        /// <param name="fields">Optional. Specify additional fields of information to return in the output.</param>
         /// <param name="enableImages">Optional. Include image information in output.</param>
         /// <param name="enableUserData">Optional. Include user data.</param>
         /// <param name="imageTypeLimit">Optional. The max number of images to return, per image type.</param>
@@ -147,7 +147,7 @@ namespace Jellyfin.Api.Controllers
             [FromQuery, Required] Guid userId,
             [FromQuery] int? startIndex,
             [FromQuery] int? limit,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] bool? enableImages,
             [FromQuery] bool? enableUserData,
             [FromQuery] int? imageTypeLimit,

Jellyfin.Api/Controllers/StudiosController.cs

@@ -50,7 +50,7 @@ namespace Jellyfin.Api.Controllers
         /// <param name="limit">Optional. The maximum number of records to return.</param>
         /// <param name="searchTerm">Optional. Search term.</param>
         /// <param name="parentId">Specify this to localize the search to a specific item or folder. Omit to use the root.</param>
-        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimited. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines.</param>
+        /// <param name="fields">Optional. Specify additional fields of information to return in the output.</param>
         /// <param name="excludeItemTypes">Optional. If specified, results will be filtered out based on item type. This allows multiple, comma delimited.</param>
         /// <param name="includeItemTypes">Optional. If specified, results will be filtered based on item type. This allows multiple, comma delimited.</param>
         /// <param name="filters">Optional. Specify additional filters to apply. This allows multiple, comma delimited. Options: IsFolder, IsNotFolder, IsUnplayed, IsPlayed, IsFavorite, IsResumable, Likes, Dislikes.</param>
@@ -85,7 +85,7 @@ namespace Jellyfin.Api.Controllers
             [FromQuery] int? limit,
             [FromQuery] string? searchTerm,
             [FromQuery] string? parentId,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] string? excludeItemTypes,
             [FromQuery] string? includeItemTypes,
             [FromQuery] string? filters,

Jellyfin.Api/Controllers/TrailersController.cs

@@ -144,7 +144,7 @@ namespace Jellyfin.Api.Controllers
             [FromQuery] string? searchTerm,
             [FromQuery] string? sortOrder,
             [FromQuery] string? parentId,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] string? excludeItemTypes,
             [FromQuery] string? filters,
             [FromQuery] bool? isFavorite,

Jellyfin.Api/Controllers/TvShowsController.cs

@@ -57,7 +57,7 @@ namespace Jellyfin.Api.Controllers
         /// <param name="userId">The user id of the user to get the next up episodes for.</param>
         /// <param name="startIndex">Optional. The record index to start at. All items with a lower index will be dropped from the results.</param>
         /// <param name="limit">Optional. The maximum number of records to return.</param>
-        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimeted. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines, TrailerUrls.</param>
+        /// <param name="fields">Optional. Specify additional fields of information to return in the output.</param>
         /// <param name="seriesId">Optional. Filter by series id.</param>
         /// <param name="parentId">Optional. Specify this to localize the search to a specific item or folder. Omit to use the root.</param>
         /// <param name="enableImges">Optional. Include image information in output.</param>
@@ -72,7 +72,7 @@ namespace Jellyfin.Api.Controllers
             [FromQuery] Guid? userId,
             [FromQuery] int? startIndex,
             [FromQuery] int? limit,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] string? seriesId,
             [FromQuery] string? parentId,
             [FromQuery] bool? enableImges,
@@ -82,7 +82,7 @@ namespace Jellyfin.Api.Controllers
             [FromQuery] bool enableTotalRecordCount = true)
         {
             var options = new DtoOptions()
-                .AddItemFields(fields!)
+                .AddItemFields(fields)
                 .AddClientFields(Request)
                 .AddAdditionalDtoOptions(enableImges, enableUserData, imageTypeLimit, enableImageTypes!);
 
@@ -117,7 +117,7 @@ namespace Jellyfin.Api.Controllers
         /// <param name="userId">The user id of the user to get the upcoming episodes for.</param>
         /// <param name="startIndex">Optional. The record index to start at. All items with a lower index will be dropped from the results.</param>
         /// <param name="limit">Optional. The maximum number of records to return.</param>
-        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimeted. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines, TrailerUrls.</param>
+        /// <param name="fields">Optional. Specify additional fields of information to return in the output.</param>
         /// <param name="parentId">Optional. Specify this to localize the search to a specific item or folder. Omit to use the root.</param>
         /// <param name="enableImges">Optional. Include image information in output.</param>
         /// <param name="imageTypeLimit">Optional. The max number of images to return, per image type.</param>
@@ -130,7 +130,7 @@ namespace Jellyfin.Api.Controllers
             [FromQuery] Guid? userId,
             [FromQuery] int? startIndex,
             [FromQuery] int? limit,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] string? parentId,
             [FromQuery] bool? enableImges,
             [FromQuery] int? imageTypeLimit,
@@ -196,7 +196,7 @@ namespace Jellyfin.Api.Controllers
         public ActionResult<QueryResult<BaseItemDto>> GetEpisodes(
             [FromRoute, Required] string seriesId,
             [FromQuery] Guid? userId,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] int? season,
             [FromQuery] string? seasonId,
             [FromQuery] bool? isMissing,
@@ -319,7 +319,7 @@ namespace Jellyfin.Api.Controllers
         public ActionResult<QueryResult<BaseItemDto>> GetSeasons(
             [FromRoute, Required] string seriesId,
             [FromQuery] Guid? userId,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] bool? isSpecialSeason,
             [FromQuery] bool? isMissing,
             [FromQuery] string? adjacentTo,

Jellyfin.Api/Controllers/UserLibraryController.cs

@@ -251,7 +251,7 @@ namespace Jellyfin.Api.Controllers
         /// </summary>
         /// <param name="userId">User id.</param>
         /// <param name="parentId">Specify this to localize the search to a specific item or folder. Omit to use the root.</param>
-        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimeted. Options: Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, SortName, Studios, Taglines.</param>
+        /// <param name="fields">Optional. Specify additional fields of information to return in the output.</param>
         /// <param name="includeItemTypes">Optional. If specified, results will be filtered based on item type. This allows multiple, comma delimeted.</param>
         /// <param name="isPlayed">Filter by items that are played, or not.</param>
         /// <param name="enableImages">Optional. include image information in output.</param>
@@ -267,7 +267,7 @@ namespace Jellyfin.Api.Controllers
         public ActionResult<IEnumerable<BaseItemDto>> GetLatestMedia(
             [FromRoute, Required] Guid userId,
             [FromQuery] Guid? parentId,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] string? includeItemTypes,
             [FromQuery] bool? isPlayed,
             [FromQuery] bool? enableImages,

Jellyfin.Api/Controllers/YearsController.cs

@@ -50,7 +50,7 @@ namespace Jellyfin.Api.Controllers
         /// <param name="limit">Optional. The maximum number of records to return.</param>
         /// <param name="sortOrder">Sort Order - Ascending,Descending.</param>
         /// <param name="parentId">Specify this to localize the search to a specific item or folder. Omit to use the root.</param>
-        /// <param name="fields">Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimited. Options: Budget, Chapters, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines.</param>
+        /// <param name="fields">Optional. Specify additional fields of information to return in the output.</param>
         /// <param name="excludeItemTypes">Optional. If specified, results will be excluded based on item type. This allows multiple, comma delimited.</param>
         /// <param name="includeItemTypes">Optional. If specified, results will be included based on item type. This allows multiple, comma delimited.</param>
         /// <param name="mediaTypes">Optional. Filter by MediaType. Allows multiple, comma delimited.</param>
@@ -70,7 +70,7 @@ namespace Jellyfin.Api.Controllers
             [FromQuery] int? limit,
             [FromQuery] string? sortOrder,
             [FromQuery] string? parentId,
-            [FromQuery] string? fields,
+            [FromQuery] ItemFields[] fields,
             [FromQuery] string? excludeItemTypes,
             [FromQuery] string? includeItemTypes,
             [FromQuery] string? mediaTypes,

Jellyfin.Api/Extensions/DtoExtensions.cs

@@ -21,31 +21,11 @@ namespace Jellyfin.Api.Extensions
         /// Legacy order: 1.
         /// </remarks>
         /// <param name="dtoOptions">DtoOptions object.</param>
-        /// <param name="fields">Comma delimited string of fields.</param>
+        /// <param name="fields">Array of item fields.</param>
         /// <returns>Modified DtoOptions object.</returns>
-        internal static DtoOptions AddItemFields(this DtoOptions dtoOptions, string? fields)
+        internal static DtoOptions AddItemFields(this DtoOptions dtoOptions, ItemFields[] fields)
         {
-            if (string.IsNullOrEmpty(fields))
-            {
-                dtoOptions.Fields = Array.Empty<ItemFields>();
-            }
-            else
-            {
-                dtoOptions.Fields = fields.Split(',')
-                    .Select(v =>
-                    {
-                        if (Enum.TryParse(v, true, out ItemFields value))
-                        {
-                            return (ItemFields?)value;
-                        }
-
-                        return null;
-                    })
-                    .Where(i => i.HasValue)
-                    .Select(i => i!.Value)
-                    .ToArray();
-            }
-
+            dtoOptions.Fields = fields;
             return dtoOptions;
         }