ServiceCollectionExtensions.cs

using System.ComponentModel;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.DependencyInjection.Extensions;
using Microsoft.Extensions.Http;
using Microsoft.Extensions.Options;
using Sentry.Extensibility;

namespace Sentry.Extensions.Logging.Extensions.DependencyInjection;

/// <summary>
/// Extension methods for <see cref="IServiceCollection"/>
/// </summary>
[EditorBrowsable(EditorBrowsableState.Never)]
public static class ServiceCollectionExtensions
{
    /// <summary>
    /// Adds Sentry's services to the <see cref="IServiceCollection"/>
    /// </summary>
    /// <param name="services">The services.</param>
    public static IServiceCollection AddSentry<TOptions>(this IServiceCollection services)
        where TOptions : SentryLoggingOptions, new()
    {
        services.TryAddSingleton<SentryOptions>(
            c => c.GetRequiredService<IOptions<TOptions>>().Value);

        services.TryAddTransient<ISentryClient>(c => c.GetRequiredService<IHub>());
        services.TryAddTransient(c => c.GetRequiredService<Func<IHub>>()());

        services.TryAddSingleton<Func<IHub>>(c =>
        {
            var options = c.GetRequiredService<IOptions<TOptions>>().Value;

            if (options.InitializeSdk)
            {
                var hub = SentrySdk.InitHub(options);
                SentrySdk.UseHub(hub);
            }

            return () => HubAdapter.Instance;
        });

        // Custom handler for HttpClientFactory.
        // Must be singleton: https://github.com/getsentry/sentry-dotnet/issues/785
        services.TryAddSingleton<IHttpMessageHandlerBuilderFilter, SentryHttpMessageHandlerBuilderFilter>();

        return services;
    }
}