Microsoft.Extensions.AsyncState 9.10.0

Prefix Reserved
.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. .NET Framework 4.6.2 This package targets .NET Framework 4.6.2. The package is compatible with this framework or higher. 
dotnet add package Microsoft.Extensions.AsyncState --version 9.10.0
                    


                    

                
NuGet\Install-Package Microsoft.Extensions.AsyncState -Version 9.10.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="Microsoft.Extensions.AsyncState" Version="9.10.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Microsoft.Extensions.AsyncState" Version="9.10.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Microsoft.Extensions.AsyncState" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add Microsoft.Extensions.AsyncState --version 9.10.0
                    


                    

                
#r "nuget: Microsoft.Extensions.AsyncState, 9.10.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package Microsoft.Extensions.AsyncState@9.10.0
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=Microsoft.Extensions.AsyncState&version=9.10.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Microsoft.Extensions.AsyncState&version=9.10.0
                    


                            Install as a Cake Tool

Microsoft.Extensions.AsyncState

This provides the ability to store and retrieve objects that flow with the current asynchronous context. It has a few advantages over using the AsyncLocal<T> class directly:

  • By abstracting the way the ambient data is stored we can use more optimized implementations, for instance when using ASP.NET Core, without exposing these components.
  • Improves the performance by minimizing the number of AsyncLocal<T> instances required when multiple objects are shared.
  • Provides a way to manage the lifetime of the ambient data objects.

Please note, the implementations of IAsyncState and IAsyncContext<T> are not thread-safe.

Install the package

From the command-line:

dotnet add package Microsoft.Extensions.AsyncState

Or directly in the C# project file:

<ItemGroup>
  <PackageReference Include="Microsoft.Extensions.AsyncState" Version="[CURRENTVERSION]" />
</ItemGroup>

Usage Example

Registering Services

The services can be registered using the following method:

public static IServiceCollection AddAsyncState(this IServiceCollection services)

Consuming Services

The IAsyncContext<T> can be injected wherever async state is needed. For example:

public class MyClass
{
  public MyClass(IAsyncContext<MyState> asyncContext) { Context = asyncContext }

  private IAsyncContext<MyState> Context { get; }

  public async Task DoWork()
  {
    var state = Context.Get();
    // or
    Context.Set(new MyState());
    // or
    if (Context.TryGet(out var state)) { ... }
  }
}

Feedback & Contributing

We welcome feedback and contributions in our GitHub repo.

Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 is compatible.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
.NET Framework net462 is compatible.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (1)

Showing the top 1 NuGet packages that depend on Microsoft.Extensions.AsyncState:

Package Downloads
Microsoft.AspNetCore.AsyncState

ASP.NET initializer for async state.

GitHub repositories

This package is not used by any popular GitHub repositories.

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9.10.0 296 10/14/2025
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