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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 System.Diagnostics.CodeAnalysis;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Session;
using Microsoft.Extensions.DependencyInjection.Extensions;
namespace Microsoft.Extensions.DependencyInjection;
/// <summary>
/// Extension methods for adding session services to the DI container.
/// </summary>
public static class SessionServiceCollectionExtensions
{
/// <summary>
/// Adds services required for application session state.
/// </summary>
/// <param name="services">The <see cref="IServiceCollection"/> to add the services to.</param>
/// <returns>The <see cref="IServiceCollection"/> so that additional calls can be chained.</returns>
[RequiresUnreferencedCode("Session State middleware does not currently support trimming or native AOT.", Url = "https://aka.ms/aspnet/trimming")]
public static IServiceCollection AddSession(this IServiceCollection services)
{
ArgumentNullException.ThrowIfNull(services);
services.TryAddTransient<ISessionStore, DistributedSessionStore>();
services.AddDataProtection();
return services;
}
/// <summary>
/// Adds services required for application session state.
/// </summary>
/// <param name="services">The <see cref="IServiceCollection"/> to add the services to.</param>
/// <param name="configure">The session options to configure the middleware with.</param>
/// <returns>The <see cref="IServiceCollection"/> so that additional calls can be chained.</returns>
[RequiresUnreferencedCode("Session State middleware does not currently support trimming or native AOT.", Url = "https://aka.ms/aspnet/trimming")]
public static IServiceCollection AddSession(this IServiceCollection services, Action<SessionOptions> configure)
{
ArgumentNullException.ThrowIfNull(services);
ArgumentNullException.ThrowIfNull(configure);
services.Configure(configure);
services.AddSession();
return services;
}
}
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