Merge pull request #271008 from Y-Sindo/patch-4

Update signalr-howto-use.md

Author: prmerger-automator[bot]

articles/azure-signalr/signalr-howto-use.md

@@ -4,7 +4,7 @@ description: Learn how to use Azure SignalR Service in your app server
 author: vicancy
 ms.service: signalr
 ms.topic: how-to
-ms.date: 12/18/2023
+ms.date: 04/18/2024
 ms.author: lianwei 
 ---
 
@@ -148,6 +148,12 @@ You can increase this value to avoid client disconnect.
 - This option defines the max poll interval allowed for `LongPolling` connections in Azure SignalR Service. If the next poll request doesn't come in within `MaxPollIntervalInSeconds`, Azure SignalR Service cleans up the client connection. Note that Azure SignalR Service also cleans up connections when cached waiting to write buffer size is greater than `1Mb` to ensure service performance.
 - The value is limited to `[1, 300]`.
 
+#### `TransportTypeDetector`
+
+- Default value: All transports are enabled.
+- This option defines a function to customize the transports that clients can use to send HTTP requests.
+- Use this options instead of [`HttpConnectionDispatcherOptions.Transports`](https://learn.microsoft.com/aspnet/core/signalr/configuration?&tabs=dotnet#advanced-http-configuration-options) to configure transports. 
+
 ### Sample
 
 You can configure above options like the following sample code.
@@ -162,6 +168,7 @@ services.AddSignalR()
 
                 options.GracefulShutdown.Mode = GracefulShutdownMode.WaitForClientsClose;
                 options.GracefulShutdown.Timeout = TimeSpan.FromSeconds(10);
+                options.TransportTypeDetector = httpContext => AspNetCore.Http.Connections.HttpTransportType.WebSockets | AspNetCore.Http.Connections.HttpTransportType.LongPolling;
             });
 ```