Microsoft.Extensions.Http 9.0.0-preview.3.24172.9

The ID prefix of this package has been reserved for one of the owners of this package by NuGet.org. Prefix Reserved
This is a prerelease version of Microsoft.Extensions.Http.
dotnet add package Microsoft.Extensions.Http --version 9.0.0-preview.3.24172.9
NuGet\Install-Package Microsoft.Extensions.Http -Version 9.0.0-preview.3.24172.9
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.Http" Version="9.0.0-preview.3.24172.9" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Microsoft.Extensions.Http --version 9.0.0-preview.3.24172.9
#r "nuget: Microsoft.Extensions.Http, 9.0.0-preview.3.24172.9"
#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.
// Install Microsoft.Extensions.Http as a Cake Addin
#addin nuget:?package=Microsoft.Extensions.Http&version=9.0.0-preview.3.24172.9&prerelease

// Install Microsoft.Extensions.Http as a Cake Tool
#tool nuget:?package=Microsoft.Extensions.Http&version=9.0.0-preview.3.24172.9&prerelease

About

Microsoft.Extensions.Http package provides AddHttpClient extension methods for IServiceCollection, IHttpClientFactory interface and its default implementation. This provides the ability to set up named HttpClient configurations in a DI container and later retrieve them via an injected IHttpClientFactory instance.

Key Features

  • The package allows to fluently set up multiple HttpClient configurations for applications that use DI via AddHttpClient extension method.
  • HttpClientFactory caches HttpMessageHandler instances per configuration name, which allows to reuse resources between HttpClient instances to avoid port exhaustion.
  • HttpClientFactory manages lifetime of HttpMessageHandler instances and recycles connections to track DNS changes.

How to Use

Note that lifetime management of HttpClient instances created by HttpClientFactory is completely different from instances created manually. The strategies are to use either short-lived clients created by HttpClientFactory or long-lived clients with PooledConnectionLifetime set up. For more information, see the HttpClient lifetime management section in the conceptual docs and Guidelines for using HTTP clients.

Configuring HttpClient

builder.Services.AddHttpClient("foo"); // adding an HttpClient named "foo" with a default configuration

builder.Services.AddHttpClient("example", c => c.BaseAddress = new Uri("https://www.example.com")) // configuring HttpClient itself
    .AddHttpMessageHandler<MyAuthHandler>() // adding additional delegating handlers to form a message handler chain
    .ConfigurePrimaryHttpMessageHandler(b => new HttpClientHandler() { AllowAutoRedirect = false }) // configuring primary handler
    .SetHandlerLifetime(TimeSpan.FromMinutes(30)); // changing the handler recycling interval

Using the configured HttpClient

public class MyService
{
    public MyService(IHttpClientFactory httpClientFactory)
    {
        _httpClientFactory = httpClientFactory; // injecting the factory
    }

    private Task<string> GetExampleAsync(Uri uri, CancellationToken ct)
    {
        HttpClient exampleClient = _httpClientFactory.CreateClient("example"); // creating the client for the specified name
        return exampleClient.GetStringAsync(uri, ct); // using the client
    }
}

Main Types

The main types provided by this library are:

  • IHttpClientFactory
  • IHttpMessageHandlerFactory
  • HttpClientFactoryServiceCollectionExtensions

Additional Documentation

Feedback & Contributing

Microsoft.Extensions.Http is released as open source under the MIT license. Bug reports and contributions are welcome at the GitHub repository.

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  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. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 is compatible.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (3.9K)

Showing the top 5 NuGet packages that depend on Microsoft.Extensions.Http:

Package Downloads
Microsoft.Extensions.Http.Polly The ID prefix of this package has been reserved for one of the owners of this package by NuGet.org.

The HttpClient factory is a pattern for configuring and retrieving named HttpClients in a composable way. This package integrates IHttpClientFactory with the Polly library, to add transient-fault-handling and resiliency through fluent policies such as Retry, Circuit Breaker, Timeout, Bulkhead Isolation, and Fallback. This package was built from the source code at https://github.com/dotnet/aspnetcore/tree/d4eca39c3fc1944b2c6431bf6b22036bdb176c0d

prometheus-net The ID prefix of this package has been reserved for one of the owners of this package by NuGet.org.

.NET client library for the Prometheus monitoring and alerting system

Grpc.Net.ClientFactory The ID prefix of this package has been reserved for one of the owners of this package by NuGet.org.

HttpClientFactory integration the for gRPC .NET client

Microsoft.Identity.Web The ID prefix of this package has been reserved for one of the owners of this package by NuGet.org.

This package enables ASP.NET Core web apps and web APIs to use the Microsoft identity platform (formerly Azure AD v2.0). This package is specifically used for web applications, which sign-in users, and protected web APIs, which optionally call downstream web APIs.

Refit.HttpClientFactory The ID prefix of this package has been reserved for one of the owners of this package by NuGet.org.

Refit HTTP Client Factory Extensions

GitHub repositories (346)

Showing the top 5 popular GitHub repositories that depend on Microsoft.Extensions.Http:

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Version Downloads Last updated
9.0.0-preview.3.24172.9 9,861 4/11/2024
9.0.0-preview.2.24128.5 12,243 3/12/2024
9.0.0-preview.1.24080.9 11,300 2/13/2024
8.0.0 23,839,818 11/14/2023
8.0.0-rc.2.23479.6 206,215 10/10/2023
8.0.0-rc.1.23419.4 123,454 9/12/2023
8.0.0-preview.7.23375.6 133,935 8/8/2023
8.0.0-preview.6.23329.7 106,577 7/11/2023
8.0.0-preview.5.23280.8 31,530 6/13/2023
8.0.0-preview.4.23259.5 158,332 5/16/2023
8.0.0-preview.3.23174.8 36,562 4/11/2023
8.0.0-preview.2.23128.3 35,880 3/14/2023
8.0.0-preview.1.23110.8 24,315 2/21/2023
7.0.0 74,529,260 11/7/2022
7.0.0-rc.2.22472.3 84,627 10/11/2022
7.0.0-rc.1.22426.10 61,645 9/14/2022
7.0.0-preview.7.22375.6 66,783 8/9/2022
7.0.0-preview.6.22324.4 73,896 7/12/2022
7.0.0-preview.5.22301.12 21,185 6/14/2022
7.0.0-preview.4.22229.4 91,659 5/10/2022
7.0.0-preview.3.22175.4 28,486 4/13/2022
7.0.0-preview.2.22152.2 90,199 3/14/2022
7.0.0-preview.1.22076.8 18,449 2/17/2022
6.0.2-mauipre.1.22102.15 47,558 2/15/2022
6.0.2-mauipre.1.22054.8 52,860 1/19/2022
6.0.0 189,747,790 11/8/2021
6.0.0-rc.2.21480.5 705,391 10/12/2021
6.0.0-rc.1.21451.13 47,797 9/14/2021
6.0.0-preview.7.21377.19 154,882 8/10/2021
6.0.0-preview.6.21352.12 45,167 7/14/2021
6.0.0-preview.5.21301.5 19,303 6/15/2021
6.0.0-preview.4.21253.7 17,045 5/24/2021
6.0.0-preview.3.21201.4 22,586 4/8/2021
6.0.0-preview.2.21154.6 20,209 3/11/2021
6.0.0-preview.1.21102.12 42,815 2/12/2021
5.0.0 83,940,259 11/9/2020
5.0.0-rc.2.20475.5 59,658 10/13/2020
5.0.0-rc.1.20451.14 34,964 9/14/2020
5.0.0-preview.8.20407.11 8,813 8/25/2020
5.0.0-preview.7.20364.11 23,511 7/21/2020
5.0.0-preview.6.20305.6 27,543 6/25/2020
5.0.0-preview.5.20278.1 13,683 6/10/2020
5.0.0-preview.4.20251.6 166,502 5/18/2020
5.0.0-preview.3.20215.2 36,974 4/23/2020
5.0.0-preview.2.20160.3 45,764 4/2/2020
5.0.0-preview.1.20120.4 32,726 3/16/2020
3.1.32 2,109,845 12/13/2022
3.1.31 318,724 11/8/2022
3.1.30 216,483 10/11/2022
3.1.29 255,363 9/13/2022
3.1.28 714,806 8/9/2022
3.1.27 341,873 7/12/2022
3.1.26 391,833 6/14/2022
3.1.25 605,070 5/10/2022
3.1.24 642,521 4/11/2022
3.1.23 680,246 3/8/2022
3.1.22 4,194,895 12/14/2021
3.1.21 2,111,090 11/7/2021
3.1.20 1,093,605 10/11/2021
3.1.19 1,352,386 9/14/2021
3.1.18 3,477,029 8/10/2021
3.1.17 2,125,531 7/13/2021
3.1.16 5,509,488 6/8/2021
3.1.15 2,214,114 5/11/2021
3.1.14 2,575,644 4/6/2021
3.1.13 4,074,874 3/9/2021
3.1.12 3,447,749 2/9/2021
3.1.11 3,174,628 1/12/2021
3.1.10 5,386,462 11/9/2020
3.1.9 42,016,863 10/13/2020
3.1.8 13,380,556 9/8/2020
3.1.7 13,530,534 8/11/2020
3.1.6 8,370,725 7/14/2020
3.1.5 9,588,548 6/9/2020
3.1.4 11,161,694 5/12/2020
3.1.3 39,577,059 3/24/2020
3.1.2 8,723,347 2/18/2020
3.1.1 7,887,566 1/14/2020
3.1.0 33,056,578 12/3/2019
3.1.0-preview3.19553.2 17,851 11/13/2019
3.1.0-preview2.19525.4 3,039 11/1/2019
3.1.0-preview1.19506.1 5,940 10/15/2019
3.0.3 57,016,799 2/18/2020
3.0.2 115,157 1/14/2020
3.0.1 1,437,678 11/18/2019
3.0.0 13,883,710 9/23/2019
3.0.0-rc1.19456.10 18,951 9/16/2019
3.0.0-preview9.19423.4 15,865 9/4/2019
3.0.0-preview8.19405.4 21,661 8/13/2019
3.0.0-preview7.19362.4 10,711 7/23/2019
3.0.0-preview6.19304.6 24,705 6/12/2019
3.0.0-preview5.19227.9 17,172 5/6/2019
3.0.0-preview4.19216.2 3,397 4/18/2019
3.0.0-preview3.19153.1 5,165 3/6/2019
3.0.0-preview.19074.2 4,359 1/29/2019
3.0.0-preview.18572.1 6,313 12/4/2018
2.2.0 52,928,930 12/3/2018
2.2.0-preview3-35497 75,949 10/17/2018
2.2.0-preview2-35157 19,130 9/12/2018
2.2.0-preview1-35029 11,657 8/22/2018
2.1.1 44,945,672 6/18/2018
2.1.0 48,104,407 5/29/2018
2.1.0-rc1-final 78,229 5/6/2018
2.1.0-preview2-final 24,391 4/10/2018
2.1.0-preview1-final 33,937 2/26/2018