Implement caching for OpenAPI document

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/ci-openapi.yml

@@ -172,7 +172,7 @@ jobs:
           strip_components: 1
           target: "/srv/incoming/openapi/unstable/jellyfin-openapi-${{ env.JELLYFIN_VERSION }}"
       - name: Move openapi.json (unstable) into place
-        uses: appleboy/ssh-action@91f3272fc5907f4699dcf59761eb622a07342f5a # v1.2.3
+        uses: appleboy/ssh-action@823bd89e131d8d508129f9443cad5855e9ba96f0 # v1.2.4
         with:
           host: "${{ secrets.REPO_HOST }}"
           username: "${{ secrets.REPO_USER }}"
@@ -234,7 +234,7 @@ jobs:
           strip_components: 1
           target: "/srv/incoming/openapi/stable/jellyfin-openapi-${{ env.JELLYFIN_VERSION }}"
       - name: Move openapi.json (stable) into place
-        uses: appleboy/ssh-action@91f3272fc5907f4699dcf59761eb622a07342f5a # v1.2.3
+        uses: appleboy/ssh-action@823bd89e131d8d508129f9443cad5855e9ba96f0 # v1.2.4
         with:
           host: "${{ secrets.REPO_HOST }}"
           username: "${{ secrets.REPO_USER }}"

Directory.Packages.props

@@ -63,7 +63,7 @@
     <PackageVersion Include="prometheus-net.DotNetRuntime" Version="4.4.1" />
     <PackageVersion Include="prometheus-net" Version="8.2.1" />
     <PackageVersion Include="Polly" Version="8.6.5" />
-    <PackageVersion Include="Serilog.AspNetCore" Version="10.0.0" />
+    <PackageVersion Include="Serilog.AspNetCore" Version="9.0.0" />
     <PackageVersion Include="Serilog.Enrichers.Thread" Version="4.0.0" />
     <PackageVersion Include="Serilog.Expressions" Version="5.0.0" />
     <PackageVersion Include="Serilog.Settings.Configuration" Version="9.0.0" />

Emby.Server.Implementations/Localization/Core/oc.json

@@ -0,0 +1 @@
+{}

Jellyfin.Api/Controllers/ArtistsController.cs

@@ -122,7 +122,6 @@ public class ArtistsController : BaseJellyfinApiController
     {
         userId = RequestHelpers.GetUserId(User, userId);
         var dtoOptions = new DtoOptions { Fields = fields }
-            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         User? user = null;
@@ -326,7 +325,6 @@ public class ArtistsController : BaseJellyfinApiController
     {
         userId = RequestHelpers.GetUserId(User, userId);
         var dtoOptions = new DtoOptions { Fields = fields }
-            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         User? user = null;
@@ -467,7 +465,7 @@ public class ArtistsController : BaseJellyfinApiController
     public ActionResult<BaseItemDto> GetArtistByName([FromRoute, Required] string name, [FromQuery] Guid? userId)
     {
         userId = RequestHelpers.GetUserId(User, userId);
-        var dtoOptions = new DtoOptions().AddClientFields(User);
+        var dtoOptions = new DtoOptions();
 
         var item = _libraryManager.GetArtist(name, dtoOptions);
 

Jellyfin.Api/Controllers/CollectionController.cs

@@ -65,7 +65,7 @@ public class CollectionController : BaseJellyfinApiController
             UserIds = new[] { userId }
         }).ConfigureAwait(false);
 
-        var dtoOptions = new DtoOptions().AddClientFields(User);
+        var dtoOptions = new DtoOptions();
 
         var dto = _dtoService.GetBaseItemDto(item, dtoOptions);
 

Jellyfin.Api/Controllers/GenresController.cs

@@ -94,7 +94,6 @@ public class GenresController : BaseJellyfinApiController
     {
         userId = RequestHelpers.GetUserId(User, userId);
         var dtoOptions = new DtoOptions { Fields = fields }
-            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, false, imageTypeLimit, enableImageTypes);
 
         User? user = userId.IsNullOrEmpty()
@@ -159,8 +158,7 @@ public class GenresController : BaseJellyfinApiController
     public ActionResult<BaseItemDto> GetGenre([FromRoute, Required] string genreName, [FromQuery] Guid? userId)
     {
         userId = RequestHelpers.GetUserId(User, userId);
-        var dtoOptions = new DtoOptions()
+        var dtoOptions = new DtoOptions();
-            .AddClientFields(User);
 
         Genre? item;
         if (genreName.Contains(BaseItem.SlugChar, StringComparison.OrdinalIgnoreCase))

Jellyfin.Api/Controllers/InstantMixController.cs

@@ -90,7 +90,6 @@ public class InstantMixController : BaseJellyfinApiController
         }
 
         var dtoOptions = new DtoOptions { Fields = fields }
-            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
         var items = _musicManager.GetInstantMixFromItem(item, user, dtoOptions);
         return GetResult(items, user, limit, dtoOptions);
@@ -134,7 +133,6 @@ public class InstantMixController : BaseJellyfinApiController
         }
 
         var dtoOptions = new DtoOptions { Fields = fields }
-            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
         var items = _musicManager.GetInstantMixFromItem(item, user, dtoOptions);
         return GetResult(items, user, limit, dtoOptions);
@@ -178,7 +176,6 @@ public class InstantMixController : BaseJellyfinApiController
         }
 
         var dtoOptions = new DtoOptions { Fields = fields }
-            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
         var items = _musicManager.GetInstantMixFromItem(item, user, dtoOptions);
         return GetResult(items, user, limit, dtoOptions);
@@ -214,7 +211,6 @@ public class InstantMixController : BaseJellyfinApiController
             ? null
             : _userManager.GetUserById(userId.Value);
         var dtoOptions = new DtoOptions { Fields = fields }
-            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
         var items = _musicManager.GetInstantMixFromGenres(new[] { name }, user, dtoOptions);
         return GetResult(items, user, limit, dtoOptions);
@@ -258,7 +254,6 @@ public class InstantMixController : BaseJellyfinApiController
         }
 
         var dtoOptions = new DtoOptions { Fields = fields }
-            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
         var items = _musicManager.GetInstantMixFromItem(item, user, dtoOptions);
         return GetResult(items, user, limit, dtoOptions);
@@ -302,7 +297,6 @@ public class InstantMixController : BaseJellyfinApiController
         }
 
         var dtoOptions = new DtoOptions { Fields = fields }
-            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
         var items = _musicManager.GetInstantMixFromItem(item, user, dtoOptions);
         return GetResult(items, user, limit, dtoOptions);
@@ -385,7 +379,6 @@ public class InstantMixController : BaseJellyfinApiController
         }
 
         var dtoOptions = new DtoOptions { Fields = fields }
-            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
         var items = _musicManager.GetInstantMixFromItem(item, user, dtoOptions);
         return GetResult(items, user, limit, dtoOptions);

Jellyfin.Api/Controllers/ItemsController.cs

@@ -268,7 +268,6 @@ public class ItemsController : BaseJellyfinApiController
         }
 
         var dtoOptions = new DtoOptions { Fields = fields }
-            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         if (includeItemTypes.Length == 1
@@ -849,7 +848,6 @@ public class ItemsController : BaseJellyfinApiController
 
         var parentIdGuid = parentId ?? Guid.Empty;
         var dtoOptions = new DtoOptions { Fields = fields }
-            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         var ancestorIds = Array.Empty<Guid>();

Jellyfin.Api/Controllers/LibraryController.cs

@@ -187,7 +187,7 @@ public class LibraryController : BaseJellyfinApiController
             item = parent;
         }
 
-        var dtoOptions = new DtoOptions().AddClientFields(User);
+        var dtoOptions = new DtoOptions();
         var items = themeItems
             .Select(i => _dtoService.GetBaseItemDto(i, dtoOptions, user, item))
             .ToArray();
@@ -260,7 +260,7 @@ public class LibraryController : BaseJellyfinApiController
             item = parent;
         }
 
-        var dtoOptions = new DtoOptions().AddClientFields(User);
+        var dtoOptions = new DtoOptions();
         var items = themeItems
             .Select(i => _dtoService.GetBaseItemDto(i, dtoOptions, user, item))
             .ToArray();
@@ -496,7 +496,7 @@ public class LibraryController : BaseJellyfinApiController
 
         var baseItemDtos = new List<BaseItemDto>();
 
-        var dtoOptions = new DtoOptions().AddClientFields(User);
+        var dtoOptions = new DtoOptions();
         BaseItem? parent = item.GetParent();
 
         while (parent is not null)
@@ -556,7 +556,7 @@ public class LibraryController : BaseJellyfinApiController
             items = items.Where(i => i.IsHidden == val).ToList();
         }
 
-        var dtoOptions = new DtoOptions().AddClientFields(User);
+        var dtoOptions = new DtoOptions();
         var resultArray = _dtoService.GetBaseItemDtos(items, dtoOptions);
         return new QueryResult<BaseItemDto>(resultArray);
     }
@@ -747,8 +747,7 @@ public class LibraryController : BaseJellyfinApiController
             return new QueryResult<BaseItemDto>();
         }
 
-        var dtoOptions = new DtoOptions { Fields = fields }
+        var dtoOptions = new DtoOptions { Fields = fields };
-            .AddClientFields(User);
 
         var program = item as IHasProgramAttributes;
         bool? isMovie = item is Movie || (program is not null && program.IsMovie) || item is Trailer;

Jellyfin.Api/Controllers/LiveTvController.cs

@@ -170,7 +170,6 @@ public class LiveTvController : BaseJellyfinApiController
     {
         userId = RequestHelpers.GetUserId(User, userId);
         var dtoOptions = new DtoOptions { Fields = fields }
-            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         var channelResult = _liveTvManager.GetInternalChannels(
@@ -242,8 +241,7 @@ public class LiveTvController : BaseJellyfinApiController
             return NotFound();
         }
 
-        var dtoOptions = new DtoOptions()
+        var dtoOptions = new DtoOptions();
-            .AddClientFields(User);
         return _dtoService.GetBaseItemDto(item, dtoOptions, user);
     }
 
@@ -297,7 +295,6 @@ public class LiveTvController : BaseJellyfinApiController
     {
         userId = RequestHelpers.GetUserId(User, userId);
         var dtoOptions = new DtoOptions { Fields = fields }
-            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         return await _liveTvManager.GetRecordingsAsync(
@@ -444,8 +441,7 @@ public class LiveTvController : BaseJellyfinApiController
             return NotFound();
         }
 
-        var dtoOptions = new DtoOptions()
+        var dtoOptions = new DtoOptions();
-            .AddClientFields(User);
 
         return _dtoService.GetBaseItemDto(item, dtoOptions, user);
     }
@@ -635,7 +631,6 @@ public class LiveTvController : BaseJellyfinApiController
         }
 
         var dtoOptions = new DtoOptions { Fields = fields }
-            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
         return await _liveTvManager.GetPrograms(query, dtoOptions, CancellationToken.None).ConfigureAwait(false);
     }
@@ -690,7 +685,6 @@ public class LiveTvController : BaseJellyfinApiController
         }
 
         var dtoOptions = new DtoOptions { Fields = body.Fields ?? [] }
-            .AddClientFields(User)
             .AddAdditionalDtoOptions(body.EnableImages, body.EnableUserData, body.ImageTypeLimit, body.EnableImageTypes ?? []);
         return await _liveTvManager.GetPrograms(query, dtoOptions, CancellationToken.None).ConfigureAwait(false);
     }
@@ -760,7 +754,6 @@ public class LiveTvController : BaseJellyfinApiController
         };
 
         var dtoOptions = new DtoOptions { Fields = fields }
-            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
         return await _liveTvManager.GetRecommendedProgramsAsync(query, dtoOptions, CancellationToken.None).ConfigureAwait(false);
     }

Jellyfin.Api/Controllers/MoviesController.cs

@@ -74,8 +74,7 @@ public class MoviesController : BaseJellyfinApiController
         var user = userId.IsNullOrEmpty()
             ? null
             : _userManager.GetUserById(userId.Value);
-        var dtoOptions = new DtoOptions { Fields = fields }
+        var dtoOptions = new DtoOptions { Fields = fields };
-            .AddClientFields(User);
 
         var categories = new List<RecommendationDto>();
 

Jellyfin.Api/Controllers/MusicGenresController.cs

@@ -94,7 +94,6 @@ public class MusicGenresController : BaseJellyfinApiController
     {
         userId = RequestHelpers.GetUserId(User, userId);
         var dtoOptions = new DtoOptions { Fields = fields }
-            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, false, imageTypeLimit, enableImageTypes);
 
         User? user = userId.IsNullOrEmpty()
@@ -148,7 +147,7 @@ public class MusicGenresController : BaseJellyfinApiController
     public ActionResult<BaseItemDto> GetMusicGenre([FromRoute, Required] string genreName, [FromQuery] Guid? userId)
     {
         userId = RequestHelpers.GetUserId(User, userId);
-        var dtoOptions = new DtoOptions().AddClientFields(User);
+        var dtoOptions = new DtoOptions();
 
         MusicGenre? item;
 

Jellyfin.Api/Controllers/PersonsController.cs

@@ -81,7 +81,6 @@ public class PersonsController : BaseJellyfinApiController
     {
         userId = RequestHelpers.GetUserId(User, userId);
         var dtoOptions = new DtoOptions { Fields = fields }
-            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         User? user = userId.IsNullOrEmpty()
@@ -121,8 +120,7 @@ public class PersonsController : BaseJellyfinApiController
     public ActionResult<BaseItemDto> GetPerson([FromRoute, Required] string name, [FromQuery] Guid? userId)
     {
         userId = RequestHelpers.GetUserId(User, userId);
-        var dtoOptions = new DtoOptions()
+        var dtoOptions = new DtoOptions();
-            .AddClientFields(User);
 
         var item = _libraryManager.GetPerson(name);
         if (item is null)

Jellyfin.Api/Controllers/PlaylistsController.cs

@@ -548,7 +548,6 @@ public class PlaylistsController : BaseJellyfinApiController
         }
 
         var dtoOptions = new DtoOptions { Fields = fields }
-            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         var dtos = _dtoService.GetBaseItemDtos(items.Select(i => i.Item2).ToList(), dtoOptions, user);

Jellyfin.Api/Controllers/StudiosController.cs

@@ -89,7 +89,6 @@ public class StudiosController : BaseJellyfinApiController
     {
         userId = RequestHelpers.GetUserId(User, userId);
         var dtoOptions = new DtoOptions { Fields = fields }
-            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         User? user = userId.IsNullOrEmpty()
@@ -142,7 +141,7 @@ public class StudiosController : BaseJellyfinApiController
     public ActionResult<BaseItemDto> GetStudio([FromRoute, Required] string name, [FromQuery] Guid? userId)
     {
         userId = RequestHelpers.GetUserId(User, userId);
-        var dtoOptions = new DtoOptions().AddClientFields(User);
+        var dtoOptions = new DtoOptions();
 
         var item = _libraryManager.GetStudio(name);
         if (!userId.IsNullOrEmpty())

Jellyfin.Api/Controllers/SuggestionsController.cs

@@ -77,7 +77,7 @@ public class SuggestionsController : BaseJellyfinApiController
             user = _userManager.GetUserById(requestUserId);
         }
 
-        var dtoOptions = new DtoOptions().AddClientFields(User);
+        var dtoOptions = new DtoOptions();
         var result = _libraryManager.GetItemsResult(new InternalItemsQuery(user)
         {
             OrderBy = new[] { (ItemSortBy.Random, SortOrder.Descending) },

Jellyfin.Api/Controllers/TvShowsController.cs

@@ -99,7 +99,6 @@ public class TvShowsController : BaseJellyfinApiController
         }
 
         var options = new DtoOptions { Fields = fields }
-            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         var result = _tvSeriesManager.GetNextUp(
@@ -161,7 +160,6 @@ public class TvShowsController : BaseJellyfinApiController
         var parentIdGuid = parentId ?? Guid.Empty;
 
         var options = new DtoOptions { Fields = fields }
-            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         var itemsResult = _libraryManager.GetItemList(new InternalItemsQuery(user)
@@ -231,7 +229,6 @@ public class TvShowsController : BaseJellyfinApiController
         List<BaseItem> episodes;
 
         var dtoOptions = new DtoOptions { Fields = fields }
-            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
         var shouldIncludeMissingEpisodes = (user is not null && user.DisplayMissingEpisodes) || User.GetIsApiKey();
 
@@ -360,7 +357,6 @@ public class TvShowsController : BaseJellyfinApiController
         });
 
         var dtoOptions = new DtoOptions { Fields = fields }
-            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         var returnItems = _dtoService.GetBaseItemDtos(seasons, dtoOptions, user);

Jellyfin.Api/Controllers/UserLibraryController.cs

@@ -94,7 +94,7 @@ public class UserLibraryController : BaseJellyfinApiController
 
         await RefreshItemOnDemandIfNeeded(item).ConfigureAwait(false);
 
-        var dtoOptions = new DtoOptions().AddClientFields(User);
+        var dtoOptions = new DtoOptions();
 
         return _dtoService.GetBaseItemDto(item, dtoOptions, user);
     }
@@ -133,7 +133,7 @@ public class UserLibraryController : BaseJellyfinApiController
         }
 
         var item = _libraryManager.GetUserRootFolder();
-        var dtoOptions = new DtoOptions().AddClientFields(User);
+        var dtoOptions = new DtoOptions();
         return _dtoService.GetBaseItemDto(item, dtoOptions, user);
     }
 
@@ -180,7 +180,7 @@ public class UserLibraryController : BaseJellyfinApiController
         }
 
         var items = await _libraryManager.GetIntros(item, user).ConfigureAwait(false);
-        var dtoOptions = new DtoOptions().AddClientFields(User);
+        var dtoOptions = new DtoOptions();
         var dtos = items.Select(i => _dtoService.GetBaseItemDto(i, dtoOptions, user)).ToArray();
 
         return new QueryResult<BaseItemDto>(dtos);
@@ -422,7 +422,7 @@ public class UserLibraryController : BaseJellyfinApiController
             return NotFound();
         }
 
-        var dtoOptions = new DtoOptions().AddClientFields(User);
+        var dtoOptions = new DtoOptions();
         if (item is IHasTrailers hasTrailers)
         {
             var trailers = hasTrailers.LocalTrailers;
@@ -478,7 +478,7 @@ public class UserLibraryController : BaseJellyfinApiController
             return NotFound();
         }
 
-        var dtoOptions = new DtoOptions().AddClientFields(User);
+        var dtoOptions = new DtoOptions();
 
         return Ok(item
             .GetExtras()
@@ -549,7 +549,6 @@ public class UserLibraryController : BaseJellyfinApiController
         }
 
         var dtoOptions = new DtoOptions { Fields = fields }
-            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         var list = _userViewManager.GetLatestItems(

Jellyfin.Api/Controllers/UserViewsController.cs

@@ -86,7 +86,7 @@ public class UserViewsController : BaseJellyfinApiController
 
         var folders = _userViewManager.GetUserViews(query);
 
-        var dtoOptions = new DtoOptions().AddClientFields(User);
+        var dtoOptions = new DtoOptions();
         dtoOptions.Fields = [..dtoOptions.Fields, ItemFields.PrimaryImageAspectRatio, ItemFields.DisplayPreferencesId];
 
         var dtos = Array.ConvertAll(folders, i => _dtoService.GetBaseItemDto(i, dtoOptions, user));

Jellyfin.Api/Controllers/VideosController.cs

@@ -111,7 +111,6 @@ public class VideosController : BaseJellyfinApiController
         }
 
         var dtoOptions = new DtoOptions();
-        dtoOptions = dtoOptions.AddClientFields(User);
 
         BaseItemDto[] items;
         if (item is Video video)

Jellyfin.Api/Controllers/YearsController.cs

@@ -89,7 +89,6 @@ public class YearsController : BaseJellyfinApiController
     {
         userId = RequestHelpers.GetUserId(User, userId);
         var dtoOptions = new DtoOptions { Fields = fields }
-            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         User? user = userId.IsNullOrEmpty()
@@ -182,8 +181,7 @@ public class YearsController : BaseJellyfinApiController
             return NotFound();
         }
 
-        var dtoOptions = new DtoOptions()
+        var dtoOptions = new DtoOptions();
-            .AddClientFields(User);
 
         if (!userId.IsNullOrEmpty())
         {

Jellyfin.Api/Extensions/DtoExtensions.cs

@@ -1,10 +1,6 @@
-using System;
 using System.Collections.Generic;
-using System.Security.Claims;
-using Jellyfin.Extensions;
 using MediaBrowser.Controller.Dto;
 using MediaBrowser.Model.Entities;
-using MediaBrowser.Model.Querying;
 
 namespace Jellyfin.Api.Extensions;
 
@@ -13,55 +9,6 @@ namespace Jellyfin.Api.Extensions;
 /// </summary>
 public static class DtoExtensions
 {
-    /// <summary>
-    /// Add additional fields depending on client.
-    /// </summary>
-    /// <remarks>
-    /// Use in place of GetDtoOptions.
-    /// Legacy order: 2.
-    /// </remarks>
-    /// <param name="dtoOptions">DtoOptions object.</param>
-    /// <param name="user">Current claims principal.</param>
-    /// <returns>Modified DtoOptions object.</returns>
-    internal static DtoOptions AddClientFields(
-        this DtoOptions dtoOptions, ClaimsPrincipal user)
-    {
-        string? client = user.GetClient();
-
-        // No client in claim
-        if (string.IsNullOrEmpty(client))
-        {
-            return dtoOptions;
-        }
-
-        if (!dtoOptions.ContainsField(ItemFields.RecursiveItemCount))
-        {
-            if (client.Contains("kodi", StringComparison.OrdinalIgnoreCase) ||
-                client.Contains("wmc", StringComparison.OrdinalIgnoreCase) ||
-                client.Contains("media center", StringComparison.OrdinalIgnoreCase) ||
-                client.Contains("classic", StringComparison.OrdinalIgnoreCase))
-            {
-                dtoOptions.Fields = [..dtoOptions.Fields, ItemFields.RecursiveItemCount];
-            }
-        }
-
-        if (!dtoOptions.ContainsField(ItemFields.ChildCount))
-        {
-            if (client.Contains("kodi", StringComparison.OrdinalIgnoreCase) ||
-                client.Contains("wmc", StringComparison.OrdinalIgnoreCase) ||
-                client.Contains("media center", StringComparison.OrdinalIgnoreCase) ||
-                client.Contains("classic", StringComparison.OrdinalIgnoreCase) ||
-                client.Contains("roku", StringComparison.OrdinalIgnoreCase) ||
-                client.Contains("samsung", StringComparison.OrdinalIgnoreCase) ||
-                client.Contains("androidtv", StringComparison.OrdinalIgnoreCase))
-            {
-                dtoOptions.Fields = [..dtoOptions.Fields, ItemFields.ChildCount];
-            }
-        }
-
-        return dtoOptions;
-    }
-
     /// <summary>
     /// Add additional DtoOptions.
     /// </summary>

Jellyfin.Server/Extensions/ApiServiceCollectionExtensions.cs

@@ -33,9 +33,11 @@ using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Cors.Infrastructure;
 using Microsoft.AspNetCore.HttpOverrides;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.DependencyInjection.Extensions;
 using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Models;
+using Swashbuckle.AspNetCore.Swagger;
 using Swashbuckle.AspNetCore.SwaggerGen;
 using AuthenticationSchemes = Jellyfin.Api.Constants.AuthenticationSchemes;
 
@@ -259,7 +261,8 @@ namespace Jellyfin.Server.Extensions
                 c.OperationFilter<FileRequestFilter>();
                 c.OperationFilter<ParameterObsoleteFilter>();
                 c.DocumentFilter<AdditionalModelFilter>();
-            });
+            })
+            .Replace(ServiceDescriptor.Transient<ISwaggerProvider, CachingOpenApiProvider>());
         }
 
         private static void AddPolicy(this AuthorizationOptions authorizationOptions, string policyName, IAuthorizationRequirement authorizationRequirement)

Jellyfin.Server/Filters/CachingOpenApiProvider.cs

@@ -0,0 +1,89 @@
+using System;
+using System.Threading;
+using Microsoft.AspNetCore.Mvc.ApiExplorer;
+using Microsoft.Extensions.Caching.Memory;
+using Microsoft.Extensions.Options;
+using Microsoft.OpenApi.Models;
+using Swashbuckle.AspNetCore.Swagger;
+using Swashbuckle.AspNetCore.SwaggerGen;
+
+namespace Jellyfin.Server.Filters;
+
+/// <summary>
+/// OpenApi provider with caching.
+/// </summary>
+internal sealed class CachingOpenApiProvider : ISwaggerProvider
+{
+    private const string CacheKey = "openapi.json";
+
+    private static readonly MemoryCacheEntryOptions _cacheOptions = new() { SlidingExpiration = TimeSpan.FromMinutes(5) };
+    private static readonly SemaphoreSlim _lock = new(1, 1);
+    private static readonly TimeSpan _lockTimeout = TimeSpan.FromSeconds(1);
+
+    private readonly IMemoryCache _memoryCache;
+    private readonly SwaggerGenerator _swaggerGenerator;
+    private readonly SwaggerGeneratorOptions _swaggerGeneratorOptions;
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="CachingOpenApiProvider"/> class.
+    /// </summary>
+    /// <param name="optionsAccessor">The options accessor.</param>
+    /// <param name="apiDescriptionsProvider">The api descriptions provider.</param>
+    /// <param name="schemaGenerator">The schema generator.</param>
+    /// <param name="memoryCache">The memory cache.</param>
+    public CachingOpenApiProvider(
+        IOptions<SwaggerGeneratorOptions> optionsAccessor,
+        IApiDescriptionGroupCollectionProvider apiDescriptionsProvider,
+        ISchemaGenerator schemaGenerator,
+        IMemoryCache memoryCache)
+    {
+        _swaggerGeneratorOptions = optionsAccessor.Value;
+        _swaggerGenerator = new SwaggerGenerator(_swaggerGeneratorOptions, apiDescriptionsProvider, schemaGenerator);
+        _memoryCache = memoryCache;
+    }
+
+    /// <inheritdoc />
+    public OpenApiDocument GetSwagger(string documentName, string? host = null, string? basePath = null)
+    {
+        if (_memoryCache.TryGetValue(CacheKey, out OpenApiDocument? openApiDocument) && openApiDocument is not null)
+        {
+            return AdjustDocument(openApiDocument, host, basePath);
+        }
+
+        var acquired = _lock.Wait(_lockTimeout);
+        try
+        {
+            if (_memoryCache.TryGetValue(CacheKey, out openApiDocument) && openApiDocument is not null)
+            {
+                return AdjustDocument(openApiDocument, host, basePath);
+            }
+
+            if (!acquired)
+            {
+                throw new InvalidOperationException("OpenApi document is generating");
+            }
+
+            openApiDocument = _swaggerGenerator.GetSwagger(documentName);
+            _memoryCache.Set(CacheKey, openApiDocument, _cacheOptions);
+            return AdjustDocument(openApiDocument, host, basePath);
+        }
+        finally
+        {
+            if (acquired)
+            {
+                _lock.Release();
+            }
+        }
+    }
+
+    private OpenApiDocument AdjustDocument(OpenApiDocument document, string? host, string? basePath)
+    {
+        document.Servers = _swaggerGeneratorOptions.Servers.Count != 0
+            ? _swaggerGeneratorOptions.Servers
+            : string.IsNullOrEmpty(host) && string.IsNullOrEmpty(basePath)
+                ? []
+                : [new OpenApiServer { Url = $"{host}{basePath}" }];
+
+        return document;
+    }
+}