Exposes the underlying HttpConnectionDispatcherOptions in MapBlazorHub (#10690)

* Expose new overloads to customize connection dispatch options

src/Components/Server/ref/Microsoft.AspNetCore.Components.Server.netcoreapp3.0.cs

@@ -10,10 +10,15 @@ namespace Microsoft.AspNetCore.Builder
     public static partial class ComponentEndpointRouteBuilderExtensions
     {
         public static Microsoft.AspNetCore.Components.Server.ComponentEndpointConventionBuilder MapBlazorHub(this Microsoft.AspNetCore.Routing.IEndpointRouteBuilder endpoints) { throw null; }
+        public static Microsoft.AspNetCore.Components.Server.ComponentEndpointConventionBuilder MapBlazorHub(this Microsoft.AspNetCore.Routing.IEndpointRouteBuilder endpoints, System.Action<Microsoft.AspNetCore.Http.Connections.HttpConnectionDispatcherOptions> configureOptions) { throw null; }
         public static Microsoft.AspNetCore.Components.Server.ComponentEndpointConventionBuilder MapBlazorHub(this Microsoft.AspNetCore.Routing.IEndpointRouteBuilder endpoints, System.Type type, string selector) { throw null; }
+        public static Microsoft.AspNetCore.Components.Server.ComponentEndpointConventionBuilder MapBlazorHub(this Microsoft.AspNetCore.Routing.IEndpointRouteBuilder endpoints, System.Type type, string selector, System.Action<Microsoft.AspNetCore.Http.Connections.HttpConnectionDispatcherOptions> configureOptions) { throw null; }
         public static Microsoft.AspNetCore.Components.Server.ComponentEndpointConventionBuilder MapBlazorHub(this Microsoft.AspNetCore.Routing.IEndpointRouteBuilder endpoints, System.Type componentType, string selector, string path) { throw null; }
+        public static Microsoft.AspNetCore.Components.Server.ComponentEndpointConventionBuilder MapBlazorHub(this Microsoft.AspNetCore.Routing.IEndpointRouteBuilder endpoints, System.Type componentType, string selector, string path, System.Action<Microsoft.AspNetCore.Http.Connections.HttpConnectionDispatcherOptions> configureOptions) { throw null; }
         public static Microsoft.AspNetCore.Components.Server.ComponentEndpointConventionBuilder MapBlazorHub<TComponent>(this Microsoft.AspNetCore.Routing.IEndpointRouteBuilder endpoints, string selector) where TComponent : Microsoft.AspNetCore.Components.IComponent { throw null; }
+        public static Microsoft.AspNetCore.Components.Server.ComponentEndpointConventionBuilder MapBlazorHub<TComponent>(this Microsoft.AspNetCore.Routing.IEndpointRouteBuilder endpoints, string selector, System.Action<Microsoft.AspNetCore.Http.Connections.HttpConnectionDispatcherOptions> configureOptions) where TComponent : Microsoft.AspNetCore.Components.IComponent { throw null; }
         public static Microsoft.AspNetCore.Components.Server.ComponentEndpointConventionBuilder MapBlazorHub<TComponent>(this Microsoft.AspNetCore.Routing.IEndpointRouteBuilder endpoints, string selector, string path) where TComponent : Microsoft.AspNetCore.Components.IComponent { throw null; }
+        public static Microsoft.AspNetCore.Components.Server.ComponentEndpointConventionBuilder MapBlazorHub<TComponent>(this Microsoft.AspNetCore.Routing.IEndpointRouteBuilder endpoints, string selector, string path, System.Action<Microsoft.AspNetCore.Http.Connections.HttpConnectionDispatcherOptions> configureOptions) where TComponent : Microsoft.AspNetCore.Components.IComponent { throw null; }
     }
 }
 namespace Microsoft.AspNetCore.Components.Browser.Rendering

src/Components/Server/src/Builder/ComponentEndpointRouteBuilderExtensions.cs

@@ -4,7 +4,9 @@
 using System;
 using Microsoft.AspNetCore.Components;
 using Microsoft.AspNetCore.Components.Server;
+using Microsoft.AspNetCore.Http.Connections;
 using Microsoft.AspNetCore.Routing;
+using Microsoft.AspNetCore.SignalR;
 
 namespace Microsoft.AspNetCore.Builder
 {
@@ -14,7 +16,7 @@ namespace Microsoft.AspNetCore.Builder
     public static class ComponentEndpointRouteBuilderExtensions
     {
         /// <summary>
-        /// Maps the SignalR <see cref="ComponentHub"/> to the path <see cref="ComponentHub.DefaultPath"/>.
+        /// Maps the Blazor <see cref="Hub" /> to the default path.
         /// </summary>
         /// <param name="endpoints">The <see cref="IEndpointRouteBuilder"/>.</param>
         /// <returns>The <see cref="ComponentEndpointConventionBuilder"/>.</returns>
@@ -25,20 +27,41 @@ namespace Microsoft.AspNetCore.Builder
                 throw new ArgumentNullException(nameof(endpoints));
             }
 
-            return new ComponentEndpointConventionBuilder(endpoints.MapHub<ComponentHub>(ComponentHub.DefaultPath));
+            return endpoints.MapBlazorHub(configureOptions: _ => { });
         }
 
         /// <summary>
-        /// Maps the SignalR <see cref="ComponentHub"/> to the path <see cref="ComponentHub.DefaultPath"/> and associates
+        /// Maps the Blazor <see cref="Hub" /> to the default path.
+        /// </summary>
+        /// <param name="endpoints">The <see cref="IEndpointRouteBuilder"/>.</param>
+        /// <param name="configureOptions">A callback to configure dispatcher options.</param>
+        /// <returns>The <see cref="ComponentEndpointConventionBuilder"/>.</returns>
+        public static ComponentEndpointConventionBuilder MapBlazorHub(this IEndpointRouteBuilder endpoints, Action<HttpConnectionDispatcherOptions> configureOptions)
+        {
+            if (endpoints == null)
+            {
+                throw new ArgumentNullException(nameof(endpoints));
+            }
+
+            if (configureOptions == null)
+            {
+                throw new ArgumentNullException(nameof(configureOptions));
+            }
+
+            return new ComponentEndpointConventionBuilder(endpoints.MapHub<ComponentHub>(ComponentHub.DefaultPath, configureOptions));
+        }
+
+        /// <summary>
+        ///Maps the Blazor <see cref="Hub" /> to the default path and associates
         /// the component <typeparamref name="TComponent"/> to this hub instance as the given DOM <paramref name="selector"/>.
         /// </summary>
-        /// <typeparam name="TComponent">The first <see cref="IComponent"/> associated with this <see cref="ComponentHub"/>.</typeparam>
+        /// <typeparam name="TComponent">The first <see cref="IComponent"/> associated with this Blazor <see cref="Hub" />.</typeparam>
         /// <param name="endpoints">The <see cref="IEndpointRouteBuilder"/>.</param>
         /// <param name="selector">The selector for the <typeparamref name="TComponent"/>.</param>
         /// <returns>The <see cref="ComponentEndpointConventionBuilder"/>.</returns>
         public static ComponentEndpointConventionBuilder MapBlazorHub<TComponent>(
             this IEndpointRouteBuilder endpoints,
-            string selector) where TComponent: IComponent
+            string selector) where TComponent : IComponent
         {
             if (endpoints == null)
             {
@@ -54,11 +77,43 @@ namespace Microsoft.AspNetCore.Builder
         }
 
         /// <summary>
-        /// Maps the SignalR <see cref="ComponentHub"/> to the path <see cref="ComponentHub.DefaultPath"/> and associates
+        ///Maps the Blazor <see cref="Hub" /> to the default path and associates
+        /// the component <typeparamref name="TComponent"/> to this hub instance as the given DOM <paramref name="selector"/>.
+        /// </summary>
+        /// <typeparam name="TComponent">The first <see cref="IComponent"/> associated with this Blazor <see cref="Hub" />.</typeparam>
+        /// <param name="endpoints">The <see cref="IEndpointRouteBuilder"/>.</param>
+        /// <param name="selector">The selector for the <typeparamref name="TComponent"/>.</param>
+        /// <param name="configureOptions">A callback to configure dispatcher options.</param>
+        /// <returns>The <see cref="ComponentEndpointConventionBuilder"/>.</returns>
+        public static ComponentEndpointConventionBuilder MapBlazorHub<TComponent>(
+            this IEndpointRouteBuilder endpoints,
+            string selector,
+            Action<HttpConnectionDispatcherOptions> configureOptions) where TComponent : IComponent
+        {
+            if (endpoints == null)
+            {
+                throw new ArgumentNullException(nameof(endpoints));
+            }
+
+            if (selector == null)
+            {
+                throw new ArgumentNullException(nameof(selector));
+            }
+
+            if (configureOptions == null)
+            {
+                throw new ArgumentNullException(nameof(configureOptions));
+            }
+
+            return endpoints.MapBlazorHub(typeof(TComponent), selector, ComponentHub.DefaultPath, configureOptions);
+        }
+
+        /// <summary>
+        ///Maps the Blazor <see cref="Hub" /> to the default path and associates
         /// the component <paramref name="type"/> to this hub instance as the given DOM <paramref name="selector"/>.
         /// </summary>
         /// <param name="endpoints">The <see cref="IEndpointRouteBuilder"/>.</param>
-        /// <param name="type">The first <see cref="IComponent"/> associated with this <see cref="ComponentHub"/>.</param>
+        /// <param name="type">The first <see cref="IComponent"/> associated with this Blazor <see cref="Hub" />.</param>
         /// <param name="selector">The selector for the component.</param>
         /// <returns>The <see cref="ComponentEndpointConventionBuilder"/>.</returns>
         public static ComponentEndpointConventionBuilder MapBlazorHub(
@@ -85,13 +140,51 @@ namespace Microsoft.AspNetCore.Builder
         }
 
         /// <summary>
-        /// Maps the SignalR <see cref="ComponentHub"/> to the path <paramref name="path"/> and associates
+        ///Maps the Blazor <see cref="Hub" /> to the default path and associates
+        /// the component <paramref name="type"/> to this hub instance as the given DOM <paramref name="selector"/>.
+        /// </summary>
+        /// <param name="endpoints">The <see cref="IEndpointRouteBuilder"/>.</param>
+        /// <param name="type">The first <see cref="IComponent"/> associated with this Blazor <see cref="Hub" />.</param>
+        /// <param name="selector">The selector for the component.</param>
+        /// <param name="configureOptions">A callback to configure dispatcher options.</param>
+        /// <returns>The <see cref="ComponentEndpointConventionBuilder"/>.</returns>
+        public static ComponentEndpointConventionBuilder MapBlazorHub(
+            this IEndpointRouteBuilder endpoints,
+            Type type,
+            string selector,
+            Action<HttpConnectionDispatcherOptions> configureOptions)
+        {
+            if (endpoints == null)
+            {
+                throw new ArgumentNullException(nameof(endpoints));
+            }
+
+            if (type == null)
+            {
+                throw new ArgumentNullException(nameof(type));
+            }
+
+            if (selector == null)
+            {
+                throw new ArgumentNullException(nameof(selector));
+            }
+
+            if (configureOptions == null)
+            {
+                throw new ArgumentNullException(nameof(configureOptions));
+            }
+
+            return endpoints.MapBlazorHub(type, selector, ComponentHub.DefaultPath, configureOptions);
+        }
+
+        /// <summary>
+        /// Maps the Blazor <see cref="Hub" /> to the path <paramref name="path"/> and associates
         /// the component <typeparamref name="TComponent"/> to this hub instance as the given DOM <paramref name="selector"/>.
         /// </summary>
-        /// <typeparam name="TComponent">The first <see cref="IComponent"/> associated with this <see cref="ComponentHub"/>.</typeparam>
+        /// <typeparam name="TComponent">The first <see cref="IComponent"/> associated with this Blazor <see cref="Hub" />.</typeparam>
         /// <param name="endpoints">The <see cref="IEndpointRouteBuilder"/>.</param>
         /// <param name="selector">The selector for the <typeparamref name="TComponent"/>.</param>
-        /// <param name="path">The path to map to which the <see cref="ComponentHub"/> will be mapped.</param>
+        /// <param name="path">The path to map the Blazor <see cref="Hub" />.</param>
         /// <returns>The <see cref="ComponentEndpointConventionBuilder"/>.</returns>
         public static ComponentEndpointConventionBuilder MapBlazorHub<TComponent>(
             this IEndpointRouteBuilder endpoints,
@@ -117,13 +210,52 @@ namespace Microsoft.AspNetCore.Builder
         }
 
         /// <summary>
-        /// Maps the SignalR <see cref="ComponentHub"/> to the path <paramref name="path"/> and associates
+        /// Maps the Blazor <see cref="Hub" /> to the path <paramref name="path"/> and associates
+        /// the component <typeparamref name="TComponent"/> to this hub instance as the given DOM <paramref name="selector"/>.
+        /// </summary>
+        /// <typeparam name="TComponent">The first <see cref="IComponent"/> associated with this Blazor <see cref="Hub" />.</typeparam>
+        /// <param name="endpoints">The <see cref="IEndpointRouteBuilder"/>.</param>
+        /// <param name="selector">The selector for the <typeparamref name="TComponent"/>.</param>
+        /// <param name="path">The path to map the Blazor <see cref="Hub" />.</param>
+        /// <param name="configureOptions">A callback to configure dispatcher options.</param>
+        /// <returns>The <see cref="ComponentEndpointConventionBuilder"/>.</returns>
+        public static ComponentEndpointConventionBuilder MapBlazorHub<TComponent>(
+            this IEndpointRouteBuilder endpoints,
+            string selector,
+            string path,
+            Action<HttpConnectionDispatcherOptions> configureOptions) where TComponent : IComponent
+        {
+            if (endpoints == null)
+            {
+                throw new ArgumentNullException(nameof(endpoints));
+            }
+
+            if (path == null)
+            {
+                throw new ArgumentNullException(nameof(path));
+            }
+
+            if (selector == null)
+            {
+                throw new ArgumentNullException(nameof(selector));
+            }
+
+            if (configureOptions == null)
+            {
+                throw new ArgumentNullException(nameof(configureOptions));
+            }
+
+            return endpoints.MapBlazorHub(typeof(TComponent), selector, path, configureOptions);
+        }
+
+        /// <summary>
+        /// Maps the Blazor <see cref="Hub" /> to the path <paramref name="path"/> and associates
         /// the component <paramref name="componentType"/> to this hub instance as the given DOM <paramref name="selector"/>.
         /// </summary>
         /// <param name="endpoints">The <see cref="IEndpointRouteBuilder"/>.</param>
-        /// <param name="componentType">The first <see cref="IComponent"/> associated with this <see cref="ComponentHub"/>.</param>
+        /// <param name="componentType">The first <see cref="IComponent"/> associated with this Blazor <see cref="Hub" />.</param>
         /// <param name="selector">The selector for the <paramref name="componentType"/>.</param>
-        /// <param name="path">The path to map to which the <see cref="ComponentHub"/> will be mapped.</param>
+        /// <param name="path">The path to map the Blazor <see cref="Hub" />.</param>
         /// <returns>The <see cref="ComponentEndpointConventionBuilder"/>.</returns>
         public static ComponentEndpointConventionBuilder MapBlazorHub(
             this IEndpointRouteBuilder endpoints,
@@ -151,7 +283,52 @@ namespace Microsoft.AspNetCore.Builder
                 throw new ArgumentNullException(nameof(selector));
             }
 
-            return new ComponentEndpointConventionBuilder(endpoints.MapHub<ComponentHub>(path)).AddComponent(componentType, selector);
+            return endpoints.MapBlazorHub(componentType, selector, path, configureOptions: _ => { });
+        }
+
+        /// <summary>
+        /// Maps the Blazor <see cref="Hub" /> to the path <paramref name="path"/> and associates
+        /// the component <paramref name="componentType"/> to this hub instance as the given DOM <paramref name="selector"/>.
+        /// </summary>
+        /// <param name="endpoints">The <see cref="IEndpointRouteBuilder"/>.</param>
+        /// <param name="componentType">The first <see cref="IComponent"/> associated with this Blazor <see cref="Hub" />.</param>
+        /// <param name="selector">The selector for the <paramref name="componentType"/>.</param>
+        /// <param name="configureOptions">A callback to configure dispatcher options.</param>
+        /// <param name="path">The path to map the Blazor <see cref="Hub" />.</param>
+        /// <returns>The <see cref="ComponentEndpointConventionBuilder"/>.</returns>
+        public static ComponentEndpointConventionBuilder MapBlazorHub(
+            this IEndpointRouteBuilder endpoints,
+            Type componentType,
+            string selector,
+            string path,
+            Action<HttpConnectionDispatcherOptions> configureOptions)
+        {
+            if (endpoints == null)
+            {
+                throw new ArgumentNullException(nameof(endpoints));
+            }
+
+            if (path == null)
+            {
+                throw new ArgumentNullException(nameof(path));
+            }
+
+            if (componentType == null)
+            {
+                throw new ArgumentNullException(nameof(componentType));
+            }
+
+            if (selector == null)
+            {
+                throw new ArgumentNullException(nameof(selector));
+            }
+
+            if (configureOptions == null)
+            {
+                throw new ArgumentNullException(nameof(configureOptions));
+            }
+
+            return new ComponentEndpointConventionBuilder(endpoints.MapHub<ComponentHub>(path, configureOptions)).AddComponent(componentType, selector);
         }
     }
 }

src/Components/Server/test/ComponentEndpointRouteBuilderExtensionsTest.cs

@@ -0,0 +1,64 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Builder.Internal;
+using Microsoft.AspNetCore.Http;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+using Moq;
+using Xunit;
+
+namespace Microsoft.AspNetCore.Components.Server.Tests
+{
+    public class ComponentEndpointRouteBuilderExtensionsTest
+    {
+        [Fact]
+        public void MapBlazorHub_WiresUp_UnderlyingHub()
+        {
+            // Arrange
+            var applicationBuilder = new ApplicationBuilder(
+                new ServiceCollection()
+                .AddLogging()
+                .AddSingleton(Mock.Of<IHostApplicationLifetime>())
+                .AddSignalR().Services
+                .AddServerSideBlazor().Services.BuildServiceProvider());
+            var called = false;
+
+            // Act
+            var app = applicationBuilder
+                .UseRouting()
+                .UseEndpoints(endpoints =>
+            {
+                endpoints.MapBlazorHub(dispatchOptions => called = true);
+            }).Build();
+
+            // Assert
+            Assert.True(called);
+        }
+
+        [Fact]
+        public void MapBlazorHub_MostGeneralOverload_MapsUnderlyingHub()
+        {
+            // Arrange
+            var applicationBuilder = new ApplicationBuilder(
+                new ServiceCollection()
+                .AddLogging()
+                .AddSingleton(Mock.Of<IHostApplicationLifetime>())
+                .AddSignalR().Services
+                .AddServerSideBlazor().Services.BuildServiceProvider());
+            var called = false;
+
+            // Act
+            var app = applicationBuilder
+                .UseRouting()
+                .UseEndpoints(endpoints =>
+                {
+                    endpoints.MapBlazorHub(Mock.Of<IComponent>().GetType(),"app", "_blazor", dispatchOptions => called = true);
+                }).Build();
+
+            // Assert
+            Assert.True(called);
+        }
+    }
+}