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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using Microsoft.AspNetCore.SignalR;
using Microsoft.AspNetCore.SignalR.Internal;
using Microsoft.Extensions.DependencyInjection.Extensions;
namespace Microsoft.Extensions.DependencyInjection;
/// <summary>
/// Extension methods for <see cref="IServiceCollection"/>.
/// </summary>
public static class SignalRDependencyInjectionExtensions
{
/// <summary>
/// Adds the minimum essential SignalR services to the specified <see cref="IServiceCollection" />. Additional services
/// must be added separately using the <see cref="ISignalRServerBuilder"/> returned from this method.
/// </summary>
/// <param name="services">The <see cref="IServiceCollection" /> to add services to.</param>
/// <returns>An <see cref="ISignalRServerBuilder"/> that can be used to further configure the SignalR services.</returns>
public static ISignalRServerBuilder AddSignalRCore(this IServiceCollection services)
{
services.TryAddSingleton<SignalRCoreMarkerService>();
services.TryAddSingleton(typeof(HubLifetimeManager<>), typeof(DefaultHubLifetimeManager<>));
services.TryAddSingleton(typeof(IHubProtocolResolver), typeof(DefaultHubProtocolResolver));
services.TryAddSingleton(typeof(IHubContext<>), typeof(HubContext<>));
services.TryAddSingleton(typeof(IHubContext<,>), typeof(HubContext<,>));
services.TryAddSingleton(typeof(HubConnectionHandler<>), typeof(HubConnectionHandler<>));
services.TryAddSingleton(typeof(IUserIdProvider), typeof(DefaultUserIdProvider));
services.TryAddSingleton(typeof(HubDispatcher<>), typeof(DefaultHubDispatcher<>));
services.TryAddScoped(typeof(IHubActivator<>), typeof(DefaultHubActivator<>));
services.AddAuthorization();
services.TryAddSingleton(new SignalRActivitySource());
var builder = new SignalRServerBuilder(services);
builder.AddJsonProtocol();
return builder;
}
}
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