feat(DIExtensions): Hinzufügen einer Ausnahmemeldung.

- Aktualisiert um AuthClient zu den Diensten als Hosted Service hinzuzufügen.
 - Der zugehörige Unit-Test wurde aktualisiert, um IHost anstelle von IServiceProvider zu verwenden, um gehostete Dienste testen zu können.

DigitalData.Auth.Abstractions/DigitalData.Auth.Abstractions.csproj

@@ -6,7 +6,7 @@
     <Nullable>enable</Nullable>
     <Description>DigitalData.Auth.Abstractions defines lightweight interfaces for sending and receiving authentication keys in .NET applications. It provides a unified IAuthClient for managing connections and errors, enabling seamless integration with authentication systems.</Description>
     <PackageId>DigitalData.Auth.Abstractions</PackageId>
-    <Version>1.1.0</Version>
+    <Version>1.2.0</Version>
     <Company>Digital Data GmbH</Company>
     <Product>Digital Data GmbH</Product>
     <Copyright>Copyright 2025</Copyright>
@@ -14,8 +14,8 @@
     <PackageIcon>auth_icon.png</PackageIcon>
     <RepositoryUrl>http://git.dd:3000/AppStd/DigitalData.Auth</RepositoryUrl>
     <PackageTags>Digital Data Auth Authorization Authentication Abstractions</PackageTags>
-	<AssemblyVersion>1.1.0</AssemblyVersion>
+	<AssemblyVersion>1.2.0</AssemblyVersion>
-	<FileVersion>1.1.0</FileVersion>
+	<FileVersion>1.2.0</FileVersion>
   </PropertyGroup>
 
   <ItemGroup>

DigitalData.Auth.Abstractions/IAuthClient.cs

@@ -4,7 +4,5 @@ public interface IAuthClient : IAuthListenHandler, IAuthSenderHandler
 {
     bool IsConnected { get; }
 
-    Task StartAsync();
+    Task StartAsync(CancellationToken cancellationToken = default);
-
-    Task<bool> TryStartAsync();
 }

DigitalData.Auth.Client/AuthClient.cs

@@ -1,11 +1,12 @@
 using DigitalData.Auth.Abstractions;
 using Microsoft.AspNetCore.SignalR.Client;
+using Microsoft.Extensions.Hosting;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Options;
 
 namespace DigitalData.Auth.Client;
 
-public class AuthClient : IAuthClient, IAsyncDisposable
+public class AuthClient : IAuthClient, IHostedService
 {
     private readonly HubConnection _connection;
 
@@ -36,25 +37,17 @@ public class AuthClient : IAuthClient, IAsyncDisposable
 
     public IEnumerable<ClientPublicKey> PublicKeys => _params.PublicKeys;
 
-    public async Task StartAsync()
+    public async Task StartAsync(CancellationToken cancellationToken = default)
     {
-        await _connection.StartAsync();
+        await _connection.StartAsync(cancellationToken);
         IsConnected = true;
         await GetAllPublicKeysAsync();
     }
 
-    public async Task<bool> TryStartAsync()
+    public async Task StopAsync(CancellationToken cancellationToken)
     {
-        try
+        await _connection.StopAsync(cancellationToken);
-        {
+        IsConnected = false;
-            await StartAsync();
-            return true;
-        }
-        catch(Exception ex)
-        {
-            _logger?.LogError(ex, "{message}", ex.Message);
-            return false;
-        }
     }
 
     public Task ReceivePublicKeyAsync(string issuer, string audience, string message) => Task.Run(() => _params.TriggerOnPublicReceivedEvent(this, issuer, audience, message, _logger));
@@ -68,11 +61,4 @@ public class AuthClient : IAuthClient, IAsyncDisposable
         foreach (var publicKey in PublicKeys)
             await GetPublicKeyAsync(publicKey.Issuer, publicKey.Audience);
     }
-
-    public virtual async ValueTask DisposeAsync()
-    {
-        await _connection.StopAsync();
-        await _connection.DisposeAsync();
-        GC.SuppressFinalize(this);
-    }
 }

DigitalData.Auth.Client/DIExtensions.cs

@@ -18,6 +18,18 @@ public static class DIExtensions
             .AddSingleton<IAuthClient, AuthClient>()
             .TryAddSingleton<HubConnectionBuilder>();
 
+        services.AddHostedService(sp =>
+        {
+            var client = sp.GetRequiredService<IAuthClient>() as AuthClient;
+            if (client is not null)
+                return client;
+            else throw new InvalidOperationException(
+                "IAuthClient instance could not be resolved from the service provider. " +
+                "This may indicate that the 'AddAuthHubClient' extension method was not called " +
+                "or there was an issue with the dependency registration process."
+            );
+        });
+
         return services;
     }
 }

DigitalData.Auth.Client/DigitalData.Auth.Client.csproj

@@ -5,7 +5,7 @@
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
     <PackageId>DigitalData.Auth.Client</PackageId>
-    <Version>1.1.5</Version>
+    <Version>1.2.1.1</Version>
     <Description>DigitalData.Auth.Client is a SignalR-based authentication client that enables applications to connect to a central authentication hub for real-time message exchange. It provides seamless connection management, automatic reconnection (RetryPolicy), and event-driven communication (ClientEvents). The package includes dependency injection support via DIExtensions, allowing easy integration into ASP.NET Core applications. With built-in retry policies and secure message handling, it ensures a reliable and scalable authentication client for real-time authentication workflows.</Description>
     <Company>Digital Data GmbH</Company>
     <Product>Digital Data GmbH</Product>
@@ -14,8 +14,8 @@
     <PackageIcon>auth_icon.png</PackageIcon>
     <RepositoryUrl>http://git.dd:3000/AppStd/DigitalData.Auth</RepositoryUrl>
     <PackageTags>Digital Data Auth Authorization Authentication</PackageTags>
-    <AssemblyVersion>1.1.5</AssemblyVersion>
+    <AssemblyVersion>1.2.1.1</AssemblyVersion>
-    <FileVersion>1.1.5</FileVersion>
+    <FileVersion>1.2.1.1</FileVersion>
   </PropertyGroup>
 
   <ItemGroup>
@@ -29,6 +29,7 @@
     <PackageReference Include="DigitalData.Core.Abstractions" Version="3.3.0" />
     <PackageReference Include="DigitalData.Core.Security" Version="1.0.0" />
     <PackageReference Include="Microsoft.AspNetCore.SignalR.Client" Version="9.0.1" />
+    <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="8.0.1" />
   </ItemGroup>
 	
   <ItemGroup>

DigitalData.Auth.Tests/Client/AuthClientTests.cs

@@ -18,7 +18,7 @@ public class AuthClientTests
 {
     private string _hubUrl;
 
-    private Func<Action<ClientParams>, ServiceProvider> Build;
+    private Func<Action<ClientParams>, IHost> Build;
 
     private WebApplication? _app;
 
@@ -84,13 +84,18 @@ public class AuthClientTests
     {
         Build = options =>
         {
-            var provider =  new ServiceCollection()
+            var host = Host.CreateDefaultBuilder()
-                    .AddAuthHubClient(options: options)
+                .ConfigureServices(services =>
-                    .BuildServiceProvider();
+                {
+                    services.AddAuthHubClient(options: options)
+                                .BuildServiceProvider();
+                })
+                .Build();
 
-            _disposableAsync.Enqueue(provider);
+            if(host is IAsyncDisposable disposable)
+                _disposableAsync.Enqueue(disposable);
 
-            return provider;
+            return host;
         };
 
         // Create and run test server
@@ -105,25 +110,37 @@ public class AuthClientTests
         if (_app is not null)
         {
             await _app.StopAsync();
+            await _app.DisposeAsync();
             Console.WriteLine("Test server stopped.");
         }
 
         while (_disposableAsync.Count > 0)
-            await _disposableAsync.Dequeue().DisposeAsync();
+        {
+            var disposable = _disposableAsync.Dequeue();
+            if (disposable is IHost host)
+                await host.StopAsync();
+            await disposable.DisposeAsync();
+        }
     }
 
     [Test]
-    public async Task StartAsync_ShouldConnectSuccessfully()
+    [TestCase(true, false, true, TestName = "ShouldStart_WhenHostStartsEvenIfClientDoesNot")]
+    [TestCase(false, true, true, TestName = "ShouldStart_WhenClientStartsEvenIfHostDoesNot")]
+    public async Task StartAsync_ShouldConnectSuccessfully(bool startHost, bool startClient, bool expectedIsConnected)
     {
         // Arrange
-        var provider = Build(opt => opt.Url = _hubUrl);
+        var host = Build(opt => opt.Url = _hubUrl);
-        var client = provider.GetRequiredService<IAuthClient>();
+        var client = host.Services.GetRequiredService<IAuthClient>();
 
         // Act
-        await client.StartAsync();
+        if (startHost)
+            await host.StartAsync();
+
+        if (startClient)
+            await client.StartAsync();
 
         // Assert
-        Assert.That(client.IsConnected);
+        Assert.That(client.IsConnected, Is.EqualTo(expectedIsConnected));
     }
 
     [Test]
@@ -135,12 +152,12 @@ public class AuthClientTests
         string rcv_key = string.Empty;
 
         // Sender client
-        var provider_sender = Build(opt => opt.Url = _hubUrl);
+        var sender_host = Build(opt => opt.Url = _hubUrl);
-        var sender_client = provider_sender.GetRequiredService<IAuthClient>();
+        var sender_client = sender_host.Services.GetRequiredService<IAuthClient>();
         await sender_client.StartAsync();
 
         // Receiver client
-        var provider_receiver = Build(opt =>
+        var receiver_host = Build(opt =>
         {
             opt.Url = _hubUrl;
             opt.OnPublicKeyReceived += (client, issuer, audience, key, logger) =>
@@ -150,7 +167,7 @@ public class AuthClientTests
                 rcv_key = key;
             };
         });
-        var client_receiver = provider_receiver.GetRequiredService<IAuthClient>();
+        var client_receiver = receiver_host.Services.GetRequiredService<IAuthClient>();
         await client_receiver.StartAsync();
 
         string issuer = "issuer";
@@ -177,12 +194,12 @@ public class AuthClientTests
     {
         // Arrange
         string? publicKey = null;
-        var provider = Build(opt =>
+        var host = Build(opt =>
         {
             opt.Url = _hubUrl;
             opt.OnPublicKeyReceived += (client, issuer, audience, key, logger) => publicKey = key;
         });
-        var client = provider.GetRequiredService<IAuthClient>();
+        var client = host.Services.GetRequiredService<IAuthClient>();
         await client.StartAsync();
 
         
@@ -207,12 +224,12 @@ public class AuthClientTests
     {
         // Arrange
         var publicKey = new ClientPublicKey() { Issuer = "Foo", Audience = "Bar" };
-        var provider = Build(opt =>
+        var host = Build(opt =>
         {
             opt.Url = _hubUrl;
             opt.PublicKeys.Add(publicKey);
         });
-        var client = provider.GetRequiredService<IAuthClient>();
+        var client = host.Services.GetRequiredService<IAuthClient>();
         await client.StartAsync();
         
         // Act
@@ -230,18 +247,18 @@ public class AuthClientTests
     {
         // Arrange
         var publicKey = new ClientPublicKey() { Issuer = "Foo", Audience = "Bar" };
-        var provider = Build(opt =>
+        var host = Build(opt =>
         {
             opt.Url = _hubUrl;
             opt.PublicKeys.Add(publicKey);
             opt.RetryDelay = new TimeSpan(0, 0, 1);
         });
-        var client = provider.GetRequiredService<IAuthClient>();
+        var client = host.Services.GetRequiredService<IAuthClient>();
         await client.StartAsync();
 
         // Act
         CancellationToken cancellationToken = default;
-        await _app.StopAsync(cancellationToken);
+        await _app!.StopAsync(cancellationToken);
         _app = null;
 
         var newApp = CreateWebApplication(_port);

src/DigitalData.Auth.API/Properties/launchSettings.json

@@ -12,7 +12,7 @@
     "http": {
       "commandName": "Project",
       "dotnetRunMessages": true,
-      "launchBrowser": true,
+      "launchBrowser": false,
       "launchUrl": "swagger",
       "applicationUrl": "http://localhost:5075",
       "environmentVariables": {
@@ -22,7 +22,7 @@
     "https": {
       "commandName": "Project",
       "dotnetRunMessages": true,
-      "launchBrowser": true,
+      "launchBrowser": false,
       "launchUrl": "swagger",
       "applicationUrl": "https://localhost:7192;http://localhost:5075",
       "environmentVariables": {
@@ -31,7 +31,7 @@
     },
     "IIS Express": {
       "commandName": "IISExpress",
-      "launchBrowser": true,
+      "launchBrowser": false,
       "launchUrl": "swagger",
       "environmentVariables": {
         "ASPNETCORE_ENVIRONMENT": "Development"