Microsoft.AspNetCore.Owin 10.0.0-preview.4.25258.110

Prefix Reserved

This is a prerelease version of Microsoft.AspNetCore.Owin.

There is a newer prerelease version of this package available.
See the version list below for details.

dotnet add package Microsoft.AspNetCore.Owin --version 10.0.0-preview.4.25258.110

NuGet\Install-Package Microsoft.AspNetCore.Owin -Version 10.0.0-preview.4.25258.110

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.AspNetCore.Owin" Version="10.0.0-preview.4.25258.110" />

For projects that support PackageReference, copy this XML node into the project file to reference the package.

<PackageVersion Include="Microsoft.AspNetCore.Owin" Version="10.0.0-preview.4.25258.110" />
                    

                            Directory.Packages.props

<PackageReference Include="Microsoft.AspNetCore.Owin" />
                    

                            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.AspNetCore.Owin --version 10.0.0-preview.4.25258.110

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: Microsoft.AspNetCore.Owin, 10.0.0-preview.4.25258.110"

#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.AspNetCore.Owin@10.0.0-preview.4.25258.110

#: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.AspNetCore.Owin&version=10.0.0-preview.4.25258.110&prerelease
                    

                            Install as a Cake Addin

#tool nuget:?package=Microsoft.AspNetCore.Owin&version=10.0.0-preview.4.25258.110&prerelease
                    

                            Install as a Cake Tool

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

About

Microsoft.AspNetCore.Owin provides adapters for running OWIN middleware in an ASP.NET Core application, and to run ASP.NET Core middleware in an OWIN application.

How to Use

To use Microsoft.AspNetCore.Owin, follow these steps:

Installation

dotnet add package Microsoft.AspNetCore.Owin

Configuration

To use OWIN middleware in an ASP.NET Core pipeline:

Define the OWIN middleware, if not done already. Here's a basic "Hello World" example:

public Task OwinHello(IDictionary<string, object> environment)
{
    var responseText = "Hello World via OWIN";
    var responseBytes = Encoding.UTF8.GetBytes(responseText);

    // OWIN Environment Keys: https://owin.org/spec/spec/owin-1.0.0.html
    var responseStream = (Stream)environment["owin.ResponseBody"];
    var responseHeaders = (IDictionary<string, string[]>)environment["owin.ResponseHeaders"];

    responseHeaders["Content-Length"] = [responseBytes.Length.ToString(CultureInfo.InvariantCulture)];
    responseHeaders["Content-Type"] = ["text/plain"];

    return responseStream.WriteAsync(responseBytes, 0, responseBytes.Length);
}

Add the middleware to the ASP.NET Core pipeline with the UseOwin extension method. For example:
```
app.UseOwin(pipeline =>
{
    pipeline(next => OwinHello);
});
```

Additional Documentation

For additional documentation, including examples on running ASP.NET Core on an OWIN-based server, refer to the official documentation on OWIN with ASP.NET Core.

Feedback & Contributing

Microsoft.AspNetCore.Owin 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	net10.0 is compatible. 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.

Compatible target framework(s)

Included target framework(s) (in package)

Learn more about Target Frameworks and .NET Standard.

net10.0
- No dependencies.

NuGet packages (88)

Showing the top 5 NuGet packages that depend on Microsoft.AspNetCore.Owin:

Package	Downloads
Microsoft.AspNetCore.App Provides a default set of APIs for building an ASP.NET Core application. This package requires the ASP.NET Core runtime. This runtime is installed by the .NET Core SDK, or can be acquired separately using installers available at https://aka.ms/dotnet-download.	39.4M
Microsoft.AspNetCore.All Provides a default set of APIs for building an ASP.NET Core application, and also includes API for third-party integrations with ASP.NET Core. This package requires the ASP.NET Core runtime. This runtime is installed by the .NET Core SDK, or can be acquired separately using installers available at https://aka.ms/dotnet-download.	35.5M
Abp.AspNetZeroCore.Web Package Description	2.1M
DicomObjects.Core DicomObjects.Net is a simple to use .NET based DICOM library. The API is user-friendly and is aimed to provide easy ways to build DICOM solution. This library is actively supported by MedicalConnections Ltd, UK. If you have any questions please contact our support team.	155.6K
Bit.Server.Owin Bit.Server.Owin	121.2K

GitHub repositories (21)

Showing the top 20 popular GitHub repositories that depend on Microsoft.AspNetCore.Owin:

Repository	Stars
NancyFx/Nancy Lightweight, low-ceremony, framework for building HTTP based services on .Net and Mono	7.1K
chromelyapps/Chromely Build Cross Platform HTML Desktop Apps on .NET using native GUI, HTML5, JavaScript, CSS, Owin, AspNetCore (MVC, RazorPages, Blazor)	3.0K
riperiperi/FreeSO Re-implementation of The Sims Online.	907
wixtoolset/wix WiX Toolset Code	839
Whisparr/Whisparr	794
aelassas/wexflow Workflow Automation Engine	709
Buildalyzer/Buildalyzer A utility to perform design-time builds of .NET projects without having to think too hard about it.	650
aspnet/Entropy A chaotic experimental playground for new features and ideas - check here for small and simple samples for individual features.	561
aspnet/Hosting [Archived] Code for hosting and starting up an ASP.NET Core application. Project moved to https://github.com/aspnet/Extensions and https://github.com/aspnet/AspNetCore	550
Sina-Soltani/Parbad A free, open-source, integrated and extensible library which connects your web applications to online payment gateways. Gateways can be added or developed by you.	398
zavolokas/Inpainting Want to remove something(someone) from a photo as it never was there? This is .NET implementation of content-aware fill. It smartly fills in unwanted or missing areas of photographs.	373
webview2/EdgeSharp Build .NET Win32/WinForms/WPF WebView2 HTML5 Desktop Apps	280
zhupingqi/RuiJi.Net crawler framework, distributed crawler extractor	266
spetz/asp-net-core-samples	191
mausch/QuartzNetWebConsole Embeddable Quartz.Net web console	165
cmendible/dotnetcore.samples .NET Core Samples - Code it Yourself...	161
Wyamio/Wyam A modular static content and static site generator.	144
devmentors/DNC-DShop.Common [Distributed .NET Core] Common library for DShop project.	141
yahehe/Nancy.Swagger Nancy plugin for generated API documentation in Swagger format.	133
dazinator/Dotnettency Mutlitenancy for dotnet applications	110

Version	Downloads	Last Updated
10.0.0-rc.1.25451.107	406	9/9/2025
10.0.0-preview.7.25380.108	678	8/12/2025
10.0.0-preview.6.25358.103	333	7/15/2025
10.0.0-preview.5.25277.114	665	6/6/2025
10.0.0-preview.4.25258.110	631	5/12/2025
10.0.0-preview.3.25172.1	439	4/10/2025
10.0.0-preview.2.25164.1	284	3/18/2025
10.0.0-preview.1.25120.3	275	2/25/2025
9.0.9	1,979	9/9/2025
9.0.8	12,032	8/5/2025
9.0.7	4,302	7/8/2025
9.0.6	14,757	6/10/2025
9.0.5	21,166	5/13/2025
9.0.4	12,479	4/8/2025
9.0.3	6,071	3/11/2025
9.0.2	8,317	2/11/2025
9.0.1	11,085	1/14/2025
9.0.0	47,615	11/12/2024
9.0.0-rc.2.24474.3	1,721	10/8/2024
9.0.0-rc.1.24452.1	269	9/10/2024
9.0.0-preview.7.24406.2	272	8/13/2024
9.0.0-preview.6.24328.4	266	7/9/2024
9.0.0-preview.5.24306.11	335	6/11/2024
9.0.0-preview.4.24267.6	273	5/21/2024
9.0.0-preview.3.24172.13	303	4/11/2024
9.0.0-preview.2.24128.4	272	3/12/2024
9.0.0-preview.1.24081.5	298	2/13/2024
8.0.20	5,674	9/9/2025
8.0.19	15,096	8/4/2025
8.0.18	12,263	7/8/2025
8.0.17	13,307	6/10/2025
8.0.16	27,830	5/13/2025
8.0.15	98,400	4/8/2025
8.0.14	27,441	3/11/2025
8.0.13	29,112	2/11/2025
8.0.12	19,298	1/14/2025
8.0.11	73,793	11/12/2024
8.0.10	142,111	10/8/2024
8.0.8	152,304	8/13/2024
8.0.7	74,598	7/9/2024
8.0.6	118,443	5/28/2024
8.0.5	46,850	5/14/2024
8.0.4	149,614	4/9/2024
8.0.3	45,411	3/12/2024
8.0.2	43,311	2/13/2024
8.0.1	62,585	1/9/2024
8.0.0	359,667	11/14/2023
8.0.0-rc.2.23480.2	861	10/10/2023
8.0.0-rc.1.23421.29	476	9/12/2023
8.0.0-preview.7.23375.9	444	8/8/2023
8.0.0-preview.6.23329.11	436	7/11/2023
8.0.0-preview.5.23302.2	437	6/13/2023
8.0.0-preview.4.23260.4	409	5/16/2023
8.0.0-preview.3.23177.8	446	4/11/2023
8.0.0-preview.2.23153.2	442	3/14/2023
8.0.0-preview.1.23112.2	410	2/21/2023
7.0.20	12,524	5/28/2024
7.0.19	491	5/14/2024
7.0.18	970	4/9/2024
7.0.17	1,095	3/12/2024
7.0.16	2,687	2/13/2024
7.0.15	2,553	1/9/2024
7.0.14	8,102	11/14/2023
7.0.13	53,497	10/24/2023
7.0.12	9,539	10/10/2023
7.0.11	28,406	9/12/2023
7.0.10	48,663	8/8/2023
7.0.9	33,341	7/11/2023
7.0.8	11,442	6/22/2023
7.0.7	3,963	6/13/2023
7.0.5	135,433	4/11/2023
7.0.4	61,346	3/14/2023
7.0.3	31,155	2/14/2023
7.0.2	45,421	1/10/2023
7.0.1	10,765	12/13/2022
7.0.0	20,696	11/7/2022
7.0.0-rc.2.22476.2	449	10/11/2022
7.0.0-rc.1.22427.2	521	9/14/2022
7.0.0-preview.7.22376.6	529	8/9/2022
7.0.0-preview.6.22330.3	496	7/12/2022
7.0.0-preview.5.22303.8	478	6/14/2022
7.0.0-preview.4.22251.1	542	5/10/2022
7.0.0-preview.3.22178.4	519	4/13/2022
7.0.0-preview.2.22153.2	499	3/14/2022
7.0.0-preview.1.22109.13	528	2/17/2022
6.0.36	32,146	11/12/2024
6.0.35	3,473	10/8/2024
6.0.33	6,322	8/13/2024
6.0.32	7,236	7/9/2024
6.0.31	3,276	5/28/2024
6.0.30	1,502	5/14/2024
6.0.29	189,357	4/9/2024
6.0.28	4,527	3/12/2024
6.0.27	9,573	2/13/2024
6.0.26	29,352	1/9/2024
6.0.25	18,724	11/14/2023
6.0.24	18,110	10/24/2023
6.0.23	14,410	10/10/2023
6.0.22	39,422	9/12/2023
6.0.21	40,408	8/8/2023
6.0.20	40,994	7/11/2023
6.0.19	10,594	6/22/2023
6.0.18	4,783	6/13/2023
6.0.16	79,295	4/11/2023
6.0.15	113,184	3/14/2023
6.0.14	55,409	2/14/2023
6.0.13	121,893	1/10/2023
6.0.12	33,360	12/13/2022
6.0.11	113,898	11/7/2022
6.0.10	85,470	10/11/2022
6.0.9	85,577	9/13/2022
6.0.8	73,922	8/9/2022
6.0.7	77,344	7/12/2022
6.0.6	89,040	6/14/2022
6.0.5	620,696	5/10/2022
6.0.4	159,649	4/11/2022
6.0.3	140,565	3/8/2022
6.0.2	43,200	2/8/2022
6.0.1	172,508	12/14/2021
6.0.0	334,942	11/8/2021
6.0.0-rc.2.21480.10	1,005	10/12/2021
6.0.0-rc.1.21452.15	1,012	9/14/2021
6.0.0-preview.7.21378.6	640	8/10/2021
6.0.0-preview.6.21355.2	631	7/14/2021
6.0.0-preview.5.21301.17	556	6/15/2021
6.0.0-preview.4.21253.5	522	5/24/2021
6.0.0-preview.3.21201.13	599	4/8/2021
6.0.0-preview.2.21154.6	685	3/11/2021
6.0.0-preview.1.21103.6	704	2/12/2021
5.0.17	28,201	5/10/2022
5.0.16	6,483	4/11/2022
5.0.15	7,246	3/8/2022
5.0.14	21,523	2/8/2022
5.0.13	20,699	12/14/2021
5.0.12	18,255	11/7/2021
5.0.11	28,658	10/12/2021
5.0.10	21,104	9/14/2021
5.0.9	37,380	8/10/2021
5.0.8	72,041	7/13/2021
5.0.7	37,109	6/8/2021
5.0.6	28,734	5/11/2021
5.0.5	52,148	4/6/2021
5.0.4	68,999	3/9/2021
5.0.3	26,625	2/9/2021
5.0.2	18,370	1/12/2021
5.0.1	46,982	12/8/2020
5.0.0	288,457	11/9/2020
5.0.0-rc.2.20475.17	2,949	10/13/2020
5.0.0-rc.1.20451.17	4,235	9/14/2020
5.0.0-preview.8.20414.8	1,886	8/25/2020
5.0.0-preview.7.20365.19	1,874	7/21/2020
5.0.0-preview.6.20312.15	751	6/25/2020
5.0.0-preview.5.20279.2	756	6/10/2020
5.0.0-preview.4.20257.10	795	5/18/2020
5.0.0-preview.3.20215.14	758	4/23/2020
5.0.0-preview.2.20167.3	816	4/2/2020
5.0.0-preview.1.20124.5	814	3/16/2020
3.1.32	20,800	12/13/2022
3.1.31	3,521	11/8/2022
3.1.30	2,386	10/11/2022
3.1.29	2,348	9/13/2022
3.1.28	4,840	8/9/2022
3.1.27	2,081	7/12/2022
3.1.26	5,908	6/14/2022
3.1.25	5,165	5/10/2022
3.1.24	3,786	4/11/2022
3.1.23	18,279	3/8/2022
3.1.22	26,003	12/14/2021
3.1.21	45,058	11/7/2021
3.1.20	10,155	10/11/2021
3.1.19	13,253	9/14/2021
3.1.18	34,136	8/10/2021
3.1.17	9,689	7/13/2021
3.1.16	24,852	6/8/2021
3.1.15	54,709	5/11/2021
3.1.14	31,633	4/6/2021
3.1.13	37,270	3/9/2021
3.1.12	48,343	2/9/2021
3.1.11	31,041	1/12/2021
3.1.10	70,835	11/9/2020
3.1.9	51,430	10/13/2020
3.1.8	72,000	9/8/2020
3.1.7	44,906	8/11/2020
3.1.6	36,583	7/14/2020
3.1.5	169,342	6/9/2020
3.1.4	74,111	5/12/2020
3.1.3	177,790	3/24/2020
3.1.2	116,498	2/18/2020
3.1.1	73,162	1/14/2020
3.1.0	333,367	12/3/2019
3.1.0-preview3.19555.2	1,048	11/13/2019
3.1.0-preview2.19528.8	1,051	11/1/2019
3.1.0-preview1.19508.20	1,106	10/15/2019
3.0.3	16,253	2/18/2020
3.0.2	5,297	1/14/2020
3.0.0	495,100	9/23/2019
3.0.0-rc1.19457.4	1,061	9/16/2019
3.0.0-preview9.19424.4	1,092	9/4/2019
3.0.0-preview8.19405.7	27,305	8/13/2019
3.0.0-preview7.19365.7	1,295	7/23/2019
3.0.0-preview6.19307.2	1,163	6/12/2019
3.0.0-preview5-19227-01	1,903	5/6/2019
3.0.0-preview4-19216-03	1,830	4/18/2019
3.0.0-preview3-19153-02	1,876	3/6/2019
3.0.0-preview-19075-0444	1,966	1/29/2019
3.0.0-preview-18579-0056	2,320	12/3/2018
2.3.0	19,256	1/14/2025
2.2.0	14,698,077	12/3/2018
2.2.0-preview3-35497	77,219	10/17/2018
2.2.0-preview2-35157	12,765	9/12/2018
2.2.0-preview1-35029	4,473	8/22/2018
2.1.1	17,160,403	6/18/2018
2.1.0	3,339,346	5/29/2018
2.1.0-rc1-final	21,866	5/6/2018
2.1.0-preview2-final	24,607	4/10/2018
2.1.0-preview1-final	29,974	2/26/2018
2.0.3	3,829,942	5/7/2018
2.0.2	3,482,599	3/13/2018
2.0.1	5,397,115	11/14/2017
2.0.0	6,575,653	8/11/2017
2.0.0-preview2-final	53,006	6/27/2017
2.0.0-preview1-final	17,790	5/10/2017
1.1.2	164,677	5/9/2017
1.1.1	98,085	3/6/2017
1.1.0	76,589	11/16/2016
1.1.0-preview1-final	5,857	10/24/2016
1.0.4	5,451	11/14/2017
1.0.3	6,714	5/9/2017
1.0.2	99,668	3/6/2017
1.0.1	11,743	12/12/2016
1.0.0	232,433	6/27/2016
1.0.0-rc2-final	6,054	5/16/2016