Continued with refactorings.

src/Squidex/Areas/Api/Config/Swagger/ODataQueryParamsProcessor.cs

@@ -23,6 +23,7 @@ namespace Squidex.Areas.Api.Config.Swagger
         public ODataQueryParamsProcessor(string supportedPath, string entity, bool supportSearch)
         {
             this.entity = entity;
+
             this.supportSearch = supportSearch;
             this.supportedPath = supportedPath;
         }

src/Squidex/Areas/Api/Config/Swagger/SecurityProcessor.cs

@@ -0,0 +1,62 @@
+// ==========================================================================
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex UG (haftungsbeschraenkt)
+//  All rights reserved. Licensed under the MIT license.
+// ==========================================================================
+
+using System.Collections.Generic;
+using System.IO;
+using System.Reflection;
+using Microsoft.Extensions.Options;
+using NSwag;
+using NSwag.SwaggerGeneration.Processors.Security;
+using Squidex.Config;
+
+namespace Squidex.Areas.Api.Config.Swagger
+{
+    public class SecurityProcessor : SecurityDefinitionAppender
+    {
+        public SecurityProcessor(IOptions<MyUrlsOptions> urlOptions)
+            : base(Constants.SecurityDefinition, CreateOAuthSchema(urlOptions.Value))
+        {
+        }
+
+        private static SwaggerSecurityScheme CreateOAuthSchema(MyUrlsOptions urlOptions)
+        {
+            var securityScheme = new SwaggerSecurityScheme();
+
+            var tokenUrl = urlOptions.BuildUrl($"{Constants.IdentityServerPrefix}/connect/token", false);
+
+            securityScheme.TokenUrl = tokenUrl;
+
+            var securityDocs = LoadDocs("security");
+            var securityText = securityDocs.Replace("<TOKEN_URL>", tokenUrl);
+
+            securityScheme.Description = securityText;
+
+            securityScheme.Type = SwaggerSecuritySchemeType.OAuth2;
+            securityScheme.Flow = SwaggerOAuth2Flow.Application;
+
+            securityScheme.Scopes = new Dictionary<string, string>
+            {
+                { Constants.ApiScope, "Read and write access to the API" }
+            };
+
+            return securityScheme;
+        }
+
+        private static string LoadDocs(string name)
+        {
+            var assembly = typeof(SecurityProcessor).GetTypeInfo().Assembly;
+
+            using (var resourceStream = assembly.GetManifestResourceStream($"Squidex.Docs.{name}.md"))
+            {
+                using (var streamReader = new StreamReader(resourceStream))
+                {
+                    return streamReader.ReadToEnd();
+                }
+            }
+        }
+    }
+}

src/Squidex/Areas/Api/Config/Swagger/SwaggerExtensions.cs

@@ -16,7 +16,7 @@ namespace Squidex.Areas.Api.Config.Swagger
         {
             app.UseSwagger(settings =>
             {
-                settings.Path = $"{Constants.ApiPrefix}/swagger/v1/swagger.json";
+                settings.Path = $"{Constants.ApiPrefix}/swagger/{{documentName}}/swagger.json";
             });
         }
     }

src/Squidex/Areas/Api/Config/Swagger/SwaggerServices.cs

@@ -7,19 +7,15 @@
 
 using System.Collections.Generic;
 using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.Options;
 using NJsonSchema;
 using NJsonSchema.Generation.TypeMappers;
 using NodaTime;
-using NSwag.AspNetCore;
 using NSwag.SwaggerGeneration;
 using NSwag.SwaggerGeneration.Processors;
-using NSwag.SwaggerGeneration.Processors.Security;
 using Squidex.Areas.Api.Controllers.Contents.Generator;
 using Squidex.Areas.Api.Controllers.Rules.Models;
 using Squidex.Config;
 using Squidex.Infrastructure;
-using Squidex.Pipeline.Swagger;
 
 namespace Squidex.Areas.Api.Config.Swagger
 {
@@ -30,63 +26,37 @@ namespace Squidex.Areas.Api.Config.Swagger
             services.AddSingletonAs<RuleActionProcessor>()
                 .As<IDocumentProcessor>();
 
+            services.AddSingletonAs<ThemeProcessor>()
+                .As<IDocumentProcessor>();
+
             services.AddSingletonAs<XmlTagProcessor>()
                 .As<IDocumentProcessor>();
 
+            services.AddSingletonAs<ScopesProcessor>()
+                .As<IOperationProcessor>();
+
             services.AddSingletonAs<TagByGroupNameProcessor>()
                 .As<IOperationProcessor>();
 
             services.AddSingletonAs<XmlResponseTypesProcessor>()
                 .As<IOperationProcessor>();
 
-            services.AddSingleton(c =>
-            {
-                var settings = new SwaggerDocumentSettings { SchemaType = SchemaType.OpenApi3 };
-
-                return new SwaggerDocumentRegistration(settings.DocumentName, generator);
-            }))
-
-                
-
-            settings.DocumentProcessors.Add(new RuleActionProcessor());
-            settings.DocumentProcessors.Add(new XmlTagProcessor());
-
-            settings.OperationProcessors.Add(new TagByGroupNameProcessor());
-            settings.OperationProcessors.Add(new XmlResponseTypesProcessor());
-
-            services.AddOpenApiDocument(configure =>
+            services.AddOpenApiDocument(settings =>
             {
-                var urlOptions = configure.GetService<IOptions<MyUrlsOptions>>().Value;
+                settings.ConfigureName();
+                settings.ConfigureSchemaSettings();
 
-                configure.AddAssetODataParams();
-                configure.ConfigureNames();
-                configure.ConfigurePaths(urlOptions);
-                configure.ConfigureSchemaSettings();
-                configure.ConfigureIdentity(urlOptions);
+                settings.OperationProcessors.Add(new ODataQueryParamsProcessor("/apps/{app}/assets", "assets", false));
             });
 
             services.AddTransient<SchemasSwaggerGenerator>();
         }
 
-        public static void AddAssetODataParams<T>(this T settings) where T : SwaggerGeneratorSettings
-        {
-            settings.OperationProcessors.Add(new ODataQueryParamsProcessor("/apps/{app}/assets", "assets", false));
-        }
-
-        public static void ConfigureNames<T>(this T settings) where T : SwaggerGeneratorSettings
+        public static void ConfigureName<T>(this T settings) where T : SwaggerGeneratorSettings
         {
             settings.Title = "Squidex API";
         }
 
-        public static void ConfigureIdentity<T>(this T settings, MyUrlsOptions urlOptions) where T : SwaggerGeneratorSettings
-        {
-            settings.DocumentProcessors.Add(
-                new SecurityDefinitionAppender(
-                    Constants.SecurityDefinition, SwaggerHelper.CreateOAuthSchema(urlOptions)));
-
-            settings.OperationProcessors.Add(new ScopesProcessor());
-        }
-
         public static void ConfigureSchemaSettings<T>(this T settings) where T : SwaggerGeneratorSettings
         {
             settings.DefaultEnumHandling = EnumHandling.String;
@@ -99,15 +69,10 @@ namespace Squidex.Areas.Api.Config.Swagger
                     schema.Type = JsonObjectType.String;
                     schema.Format = JsonFormatStrings.DateTime;
                 }),
+
                 new PrimitiveTypeMapper(typeof(Language), s => s.Type = JsonObjectType.String),
                 new PrimitiveTypeMapper(typeof(RefToken), s => s.Type = JsonObjectType.String)
             };
-
-            settings.DocumentProcessors.Add(new RuleActionProcessor());
-            settings.DocumentProcessors.Add(new XmlTagProcessor());
-
-            settings.OperationProcessors.Add(new TagByGroupNameProcessor());
-            settings.OperationProcessors.Add(new XmlResponseTypesProcessor());
         }
     }
 }

src/Squidex/Areas/Api/Config/Swagger/LogoProcessor.cs → src/Squidex/Areas/Api/Config/Swagger/ThemeProcessor.cs

@@ -15,15 +15,15 @@ using Squidex.Infrastructure.Tasks;
 
 namespace Squidex.Areas.Api.Config.Swagger
 {
-    public class LogoProcessor : IDocumentProcessor
+    public sealed class ThemeProcessor : IDocumentProcessor
     {
         private const string Background = "#3f83df";
 
-        private readonly string logo;
+        private readonly string url;
 
-        public LogoProcessor(IOptions<MyUrlsOptions> urlOptions)
+        public ThemeProcessor(IOptions<MyUrlsOptions> urlOptions)
         {
-            logo = urlOptions.Value.BuildUrl("images/logo-white.png", false);
+            url = urlOptions.Value.BuildUrl("images/logo-white.png", false);
         }
 
         public Task ProcessAsync(DocumentProcessorContext context)
@@ -32,7 +32,7 @@ namespace Squidex.Areas.Api.Config.Swagger
 
             context.Document.Info.ExtensionData = new Dictionary<string, object>
             {
-                ["x-logo"] = new { url = logo, backgroundColor = Background }
+                ["x-logo"] = new { url, backgroundColor = Background }
             };
 
             return TaskHelper.Done;

src/Squidex/Areas/Api/Config/Swagger/XmlResponseTypesProcessor.cs

@@ -60,12 +60,10 @@ namespace Squidex.Areas.Api.Config.Swagger
 
         private static async Task AddInternalErrorResponseAsync(OperationProcessorContext context, SwaggerOperation operation)
         {
-            if (operation.Responses.ContainsKey("500"))
+            if (!operation.Responses.ContainsKey("500"))
             {
-                return;
+                operation.AddResponse("500", "Operation failed", await context.SchemaGenerator.GetErrorDtoSchemaAsync(context.SchemaResolver));
             }
-
-            operation.AddResponse("500", "Operation failed", await context.SchemaGenerator.GetErrorDtoSchemaAsync(context.SchemaResolver));
         }
 
         private static void RemoveOkResponse(SwaggerOperation operation)

src/Squidex/Areas/Api/Controllers/Contents/Generator/SchemasSwaggerGenerator.cs

@@ -5,6 +5,7 @@
 //  All rights reserved. Licensed under the MIT license.
 // ==========================================================================
 
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
@@ -14,6 +15,8 @@ using NJsonSchema;
 using NSwag;
 using NSwag.AspNetCore;
 using NSwag.SwaggerGeneration;
+using NSwag.SwaggerGeneration.Processors;
+using NSwag.SwaggerGeneration.Processors.Contexts;
 using Squidex.Areas.Api.Config.Swagger;
 using Squidex.Config;
 using Squidex.Domain.Apps.Entities.Apps;
@@ -31,12 +34,16 @@ namespace Squidex.Areas.Api.Controllers.Contents.Generator
         private SwaggerDocument document;
         private JsonSchemaResolver schemaResolver;
 
-        public SchemasSwaggerGenerator(IOptions<MyUrlsOptions> urlOptions)
+        public SchemasSwaggerGenerator(IOptions<MyUrlsOptions> urlOptions, IEnumerable<IDocumentProcessor> documentProcessors)
         {
             this.urlOptions = urlOptions.Value;
 
-            settings.ConfigureNames();
-            settings.Conf
+            settings.ConfigureSchemaSettings();
+
+            foreach (var processor in documentProcessors)
+            {
+                settings.DocumentProcessors.Add(processor);
+            }
         }
 
         public async Task<SwaggerDocument> Generate(HttpContext httpContext, IAppEntity app, IEnumerable<ISchemaEntity> schemas)
@@ -50,6 +57,19 @@ namespace Squidex.Areas.Api.Controllers.Contents.Generator
 
             await GenerateDefaultErrorsAsync();
 
+            var context =
+                new DocumentProcessorContext(document,
+                    Enumerable.Empty<Type>(),
+                    Enumerable.Empty<Type>(),
+                    schemaResolver,
+                    schemaGenerator,
+                    settings);
+
+            foreach (var processor in settings.DocumentProcessors)
+            {
+                await processor.ProcessAsync(context);
+            }
+
             return document;
         }
 

src/Squidex/Pipeline/Swagger/SwaggerHelper.cs

@@ -7,9 +7,7 @@
 
 using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Linq;
-using System.Reflection;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Http;
 using NJsonSchema;
@@ -21,19 +19,6 @@ namespace Squidex.Pipeline.Swagger
 {
     public static class SwaggerHelper
     {
-        public static string LoadDocs(string name)
-        {
-            var assembly = typeof(SwaggerHelper).GetTypeInfo().Assembly;
-
-            using (var resourceStream = assembly.GetManifestResourceStream($"Squidex.Docs.{name}.md"))
-            {
-                using (var streamReader = new StreamReader(resourceStream))
-                {
-                    return streamReader.ReadToEnd();
-                }
-            }
-        }
-
         public static SwaggerDocument CreateApiDocument(HttpContext context, MyUrlsOptions urlOptions, string appName)
         {
             var scheme =
@@ -43,7 +28,6 @@ namespace Squidex.Pipeline.Swagger
 
             var document = new SwaggerDocument
             {
-                Tags = new List<SwaggerTag>(),
                 Schemes = new List<SwaggerSchema>
                 {
                     scheme
@@ -58,13 +42,9 @@ namespace Squidex.Pipeline.Swagger
                 },
                 Info = new SwaggerInfo
                 {
-                    ExtensionData = new Dictionary<string, object>
-                    {
-                        ["x-logo"] = new { url = urlOptions.BuildUrl("images/logo-white.png", false), backgroundColor = "#3f83df" }
-                    },
-                    Title = $"Squidex API for {appName} App", Version = "1.0"
+                    Title = $"Squidex API for {appName} App"
                 },
-                BasePath = "/api"
+                BasePath = Constants.ApiPrefix
             };
 
             if (!string.IsNullOrWhiteSpace(context.Request.Host.Value))
@@ -72,34 +52,9 @@ namespace Squidex.Pipeline.Swagger
                 document.Host = context.Request.Host.Value;
             }
 
-            document.SecurityDefinitions.Add(Constants.SecurityDefinition, CreateOAuthSchema(urlOptions));
-
             return document;
         }
 
-        public static SwaggerSecurityScheme CreateOAuthSchema(MyUrlsOptions urlOptions)
-        {
-            var tokenUrl = urlOptions.BuildUrl($"{Constants.IdentityServerPrefix}/connect/token", false);
-
-            var securityDocs = LoadDocs("security");
-            var securityText = securityDocs.Replace("<TOKEN_URL>", tokenUrl);
-
-            var result =
-                new SwaggerSecurityScheme
-                {
-                    TokenUrl = tokenUrl,
-                    Type = SwaggerSecuritySchemeType.OAuth2,
-                    Flow = SwaggerOAuth2Flow.Application,
-                    Scopes = new Dictionary<string, string>
-                    {
-                        { Constants.ApiScope, "Read and write access to the API" }
-                    },
-                    Description = securityText
-                };
-
-            return result;
-        }
-
         public static async Task<JsonSchema4> GetErrorDtoSchemaAsync(this JsonSchemaGenerator schemaGenerator, JsonSchemaResolver resolver)
         {
             var errorType = typeof(ErrorDto);