BlogDoFT.Libs.Keycloak 10.1.1

.NET 10.0 This package targets .NET 10.0. The package is compatible with this framework or higher. 
dotnet add package BlogDoFT.Libs.Keycloak --version 10.1.1
                    


                    

                
NuGet\Install-Package BlogDoFT.Libs.Keycloak -Version 10.1.1
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="BlogDoFT.Libs.Keycloak" Version="10.1.1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="BlogDoFT.Libs.Keycloak" Version="10.1.1" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="BlogDoFT.Libs.Keycloak" />
                    


                            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 BlogDoFT.Libs.Keycloak --version 10.1.1
                    


                    

                
#r "nuget: BlogDoFT.Libs.Keycloak, 10.1.1"
#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 BlogDoFT.Libs.Keycloak@10.1.1
#: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=BlogDoFT.Libs.Keycloak&version=10.1.1
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=BlogDoFT.Libs.Keycloak&version=10.1.1
                    


                            Install as a Cake Tool

BlogDoFT.Libs.Keycloak

Client-credentials Keycloak token provider and a DelegatingHandler to attach Bearer tokens to outgoing HTTP requests. Registers IKeycloakTokenProvider (from BlogDoFT.Libs.Keycloak.Abstractions) as a typed HttpClient and caches the access token until shortly before it expires.

Purpose

  • Fetch and cache an access token from Keycloak using the client_credentials grant.
  • Provide KeycloakAuthenticationHandler, a DelegatingHandler that attaches the cached token to any HttpClient it decorates.

Configuration

{
  "Keycloak": {
    "TokenEndpoint": "https://keycloak.example.com/realms/demo/protocol/openid-connect/token",
    "ClientId": "my-client",
    "ClientSecret": "my-secret"
  }
}

Quick start

// Composition root
services.AddKeycloakTokenProvider();

// or configure options in code
services.AddKeycloakTokenProvider(options =>
{
    options.TokenEndpoint = "https://keycloak.example.com/realms/demo/protocol/openid-connect/token";
    options.ClientId = "my-client";
    options.ClientSecret = "my-secret";
});

Authenticating another HttpClient

services
    .AddHttpClient("downstream-client")
    .AddHttpMessageHandler<KeycloakAuthenticationHandler>();

Notes

  • AddKeycloakTokenProvider fails fast with an OptionsValidationException when Keycloak:TokenEndpoint, Keycloak:ClientId or Keycloak:ClientSecret is missing or empty.
  • KeycloakAuthenticationHandler is registered so it can be attached to other HttpClient registrations (e.g. the Flagr client from BlogDoFT.Libs.Flagr) via AddHttpMessageHandler<KeycloakAuthenticationHandler>(); it is never automatically applied to the token-provider's own client, since fetching a token cannot depend on already having one.

Versioning

Starting with v10.0.0, this library's version numbering follows the major version of the .NET runtime it targets. For example, this version is compatible with .NET 10, so the major version is 10 — this explains the jump from the previous 1.x version series.

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.

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
10.1.1 115 9/24/2026
10.1.0 106 9/14/2026
10.0.1 101 9/14/2026
10.0.0 105 9/13/2026
1.14.0 102 9/13/2026