aspnetcore/src/Microsoft.Extensions.Diagno.../DependencyInjection/HealthCheckServiceCollectio...

34 lines
1.7 KiB
C#

// 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.Extensions.DependencyInjection.Extensions;
using Microsoft.Extensions.Diagnostics.HealthChecks;
using Microsoft.Extensions.Hosting;
namespace Microsoft.Extensions.DependencyInjection
{
/// <summary>
/// Provides extension methods for registering <see cref="HealthCheckService"/> in an <see cref="IServiceCollection"/>.
/// </summary>
public static class HealthCheckServiceCollectionExtensions
{
/// <summary>
/// Adds the <see cref="HealthCheckService"/> to the container, using the provided delegate to register
/// health checks.
/// </summary>
/// <remarks>
/// This operation is idempotent - multiple invocations will still only result in a single
/// <see cref="HealthCheckService"/> instance in the <see cref="IServiceCollection"/>. It can be invoked
/// multiple times in order to get access to the <see cref="IHealthChecksBuilder"/> in multiple places.
/// </remarks>
/// <param name="services">The <see cref="IServiceCollection"/> to add the <see cref="HealthCheckService"/> to.</param>
/// <returns>An instance of <see cref="IHealthChecksBuilder"/> from which health checks can be registered.</returns>
public static IHealthChecksBuilder AddHealthChecks(this IServiceCollection services)
{
services.TryAddSingleton<HealthCheckService, DefaultHealthCheckService>();
services.TryAddSingleton<IHostedService, HealthCheckPublisherHostedService>();
return new HealthChecksBuilder(services);
}
}
}