Arc4u.OAuth2.Blazor 9.0.0

Prefix Reserved
.NET 10.0 This package targets .NET 10.0. The package is compatible with this framework or higher. 
dotnet add package Arc4u.OAuth2.Blazor --version 9.0.0
                    


                    

                
NuGet\Install-Package Arc4u.OAuth2.Blazor -Version 9.0.0
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="Arc4u.OAuth2.Blazor" Version="9.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Arc4u.OAuth2.Blazor" Version="9.0.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Arc4u.OAuth2.Blazor" />
                    


                            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 Arc4u.OAuth2.Blazor --version 9.0.0
                    


                    

                
#r "nuget: Arc4u.OAuth2.Blazor, 9.0.0"
#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 Arc4u.OAuth2.Blazor@9.0.0
#: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=Arc4u.OAuth2.Blazor&version=9.0.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Arc4u.OAuth2.Blazor&version=9.0.0
                    


                            Install as a Cake Tool

Arc4u.OAuth2.Blazor

Authentication for the client (WebAssembly) project of a Blazor Web App, whose server signs the user in with a cookie: gets the user's access token from the server with that cookie, sends it to APIs, and builds the Arc4u AppPrincipal from the authentication state sent by the server.

Standalone Blazor WebAssembly apps, which sign the user in themselves, are not supported.

Install

dotnet add package Arc4u.OAuth2.Blazor

Usage

builder.Services.AddTransient<AttachCookiesHandler>();
builder.Services.AddAuthenticationCookie(builder.Configuration);
builder.Services.AddKeyedSingleton<ITokenProvider, ClientTokenProvider>(ClientTokenProvider.ProviderName);

builder.Services.AddHttpClient<InventoryClient>()
    .AddHttpMessageHandler(sp => new JwtHttpHandler(sp,
        sp.GetRequiredService<ILogger<JwtHttpHandler>>(),
        sp.GetRequiredService<IOptionsMonitor<SimpleKeyValueSettings>>().Get("OAuth2")));

AddAuthenticationCookie reads the Authentication:OAuth2.Settings section (BaseUri and TokenRequestUrl of the server endpoint that returns the token).

ConfigureAuthStateDeserializationOptions and AppPrincipalFromAuthenticationState rebuild the AppPrincipal from the authentication state that the server serializes with AddAuthenticationStateSerialization:

builder.Services.AddAuthorizationCore();
builder.Services.AddCascadingAuthenticationState();
builder.Services.AddAuthenticationStateDeserialization();
builder.Services.AddSingleton<IAppPrincipalAuthenticationStateProvider, AppPrincipalFromAuthenticationState>();
builder.Services.AddSingleton<IConfigureOptions<AuthenticationStateDeserializationOptions>, ConfigureAuthStateDeserializationOptions>();

Documentation

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.  net11.0 is compatible. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
9.0.0 65 11/10/2026
9.0.0-preview46 56 11/3/2026
9.0.0-preview45 58 11/2/2026
9.0.0-preview44 62 11/1/2026
9.0.0-preview43 56 11/1/2026
9.0.0-preview42 58 10/30/2026
9.0.0-preview41 61 10/30/2026
9.0.0-preview40 61 10/27/2026
9.0.0-preview39 58 10/24/2026
9.0.0-preview38 57 10/22/2026
9.0.0-preview37 546 8/11/2026
9.0.0-preview36 399 7/28/2026
9.0.0-preview35 80 7/27/2026
9.0.0-preview34 85 7/27/2026
9.0.0-preview33 106 6/15/2026
9.0.0-preview32 90 6/14/2026
9.0.0-preview31 104 5/20/2026
9.0.0-preview30 88 5/19/2026
9.0.0-preview29 96 5/15/2026
9.0.0-preview28 91 5/15/2026
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