Fully working demo showing Identity Server working with a WPF client which calls a SignalR hub and an Api using the IS4 (now Duende) Token.

Projects

1. IdSvr = Duende Identityserver.

2. WpfClient Authenticates via IdSvr 'Code' flow & receives Token, then calls SyncHub with said Token.

3. SyncHub SignalR project that wont [Authorize] - error '401 unauthorized'. This is now fixed see prolems encountered bleow.

4. Api = fourth simple Api project added to show successful [Authorise] via Identity Server.

To run

Set the projects to run as Multiple Startup Projects, in this order:

First) IdSvr

Next) Sync Hub

Next) WpfClient

Last) Api

Wpf client has three buttons:

(1) Login

(2) Call Hub - calls the SignalR sighub 'ContactHub' method wich never Authorises.

(3) Call Api - calls the Api/Identity endpoint which works ok using the same token.

The problems encountered along the way.

Exception Message: Response status code does not indicate success: 401 (Unauthorized).

This was fixed in Bearer event onMessageReceived by removing the code which plucked the token out of the Authorization Header & letting the Middleware do its thing.

Also the Audience had to either be assigned or disabled, it was disabled in SyncHub Startup.cs here.

Stack Trace:

at System.Net.Http.HttpResponseMessage.EnsureSuccessStatusCode() at Microsoft.AspNetCore.Http.Connections.Client.HttpConnection.<NegotiateAsync>d__45.MoveNext() at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter1.GetResult() at Microsoft.AspNetCore.Http.Connections.Client.HttpConnection.<GetNegotiationResponseAsync>d__52.MoveNext() at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at Microsoft.AspNetCore.Http.Connections.Client.HttpConnection.<SelectAndStartTransport>d__44.MoveNext() at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter.GetResult() at Microsoft.AspNetCore.Http.Connections.Client.HttpConnection.<StartAsyncCore>d__41.MoveNext() at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter.GetResult() at System.Threading.Tasks.ForceAsyncAwaiter.GetResult() at Microsoft.AspNetCore.Http.Connections.Client.HttpConnection.<StartAsync>d__40.MoveNext() at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter.GetResult() at Microsoft.AspNetCore.Http.Connections.Client.HttpConnectionFactory.<ConnectAsync>d__3.MoveNext() at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at Microsoft.AspNetCore.Http.Connections.Client.HttpConnectionFactory.<ConnectAsync>d__3.MoveNext() at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Threading.Tasks.ValueTask1.get_Result() at System.Runtime.CompilerServices.ValueTaskAwaiter1.GetResult() at Microsoft.AspNetCore.SignalR.Client.HubConnection.<StartAsyncCore>d__58.MoveNext() at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter.GetResult() at Microsoft.AspNetCore.SignalR.Client.HubConnection.<StartAsyncInner>d__50.MoveNext() at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter.GetResult() at System.Threading.Tasks.ForceAsyncAwaiter.GetResult() at Microsoft.AspNetCore.SignalR.Client.HubConnection.<StartAsync>d__49.MoveNext() at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter.GetResult() at WpfClient.MainWindow.<ConnectToHub>d__7.MoveNext() in C:\Users\mmcca\source\repos\Servers - Duende\WpfClient\MainWindow.xaml.cs:line 171