Cannot use SignalR in microservice solution. Timeout making http request, exception: System.Threading.Tasks.TaskCanceledException: #6856 | Support Center | ABP Commercial

malvarado created one month ago

ABP Framework version: v7.4.0
UI Type: Angular
Database System: EF Core (SQL Server)
Tiered (for MVC) or Auth Server Separated (for Angular): Separated. Microservices
Exception message and full stack trace: requestId: 0HN22O3N3S1OE:00000003, previousRequestId: no previous request id, message: Error Code: RequestTimedOutError Message: Timeout making http request, exception: System.Threading.Tasks.TaskCanceledException: The request was canceled due to the configured HttpClient.Timeout of 90 seconds elapsing.
Steps to reproduce the issue:

We added SignalR to one of our microservices and Angular frontend using the following guide: https://docs.abp.io/en/abp/latest/SignalR-Integration

When we try to use it from our frontend, the two negotiation requests resolve fine, but then when it tries to connect we get a TimeOut Exception. When we try to debug the OnConnectedAsync method in the hub we see that it doesn't stop at a breakpoint, so I understand it doesn't even execute it. The microservice (OperacionesService) doesn't throw any errors.

This is the Hub in our microservice:

public class DemoHub: AbpHub<PlanillaDespachosAppService>
{
    private readonly IPlanillaDespachoRepository _planillaDespachoRepository;

    public DemoHub(IPlanillaDespachoRepository planillaDespachoRepository)
    {
        _planillaDespachoRepository = planillaDespachoRepository;
    }

    public async override Task OnConnectedAsync()
    {
        var x = CurrentUser.Id;
        Console.WriteLine(x);
        await base.OnConnectedAsync();
    }

    public async override Task OnDisconnectedAsync(Exception exception)
    {
        var x = CurrentUser.Id;
        Console.WriteLine(x);
        await base.OnDisconnectedAsync(exception);
    }
}

This is the OnApplicationInitialization in our WebGateway:

public override void OnApplicationInitialization(ApplicationInitializationContext context)
{
    var app = context.GetApplicationBuilder();
    var env = context.GetEnvironment();

    if (env.IsDevelopment())
    {
        app.UseDeveloperExceptionPage();
    }

    app.UseCorrelationId();
    app.UseCors();
    app.UseSwagger();
    app.UseSwaggerUI(options =>
    {
        options.SwaggerEndpoint("/swagger/v1/swagger.json", "Web Gateway API");
        var configuration = context.ServiceProvider.GetRequiredService<IConfiguration>();
        options.OAuthClientId(configuration["AuthServer:SwaggerClientId"]);
        options.OAuthClientSecret(configuration["AuthServer:SwaggerClientSecret"]);
    });
    app.UseAbpSerilogEnrichers();
    app.MapWhen(
        ctx => ctx.Request.Path.ToString().StartsWith("/api/abp/api-definition") ||
               ctx.Request.Path.ToString().TrimEnd('/').Equals(""),
        app2 =>
        {
            app2.UseRouting();
            app2.UseConfiguredEndpoints();
        }
    );
    app.UseWebSockets();
    app.UseOcelot().Wait();
}

The SignalR config in appsettings.json of WebGateway:

{
  "DownstreamPathTemplate": "/signalr-hubs/{everything}",
  "DownstreamScheme": "https",
  "DownstreamHostAndPorts": [
    {
      "Host": "localhost",
      "Port": 44878
    }
  ],
  "UpstreamPathTemplate": "/signalr-hubs/{everything}",
  "UpstreamHttpMethod": [
    "Put",
    "Delete",
    "Get",
    "Post"
  ]
},
{
  "DownstreamPathTemplate": "/ws",
  "UpstreamPathTemplate": "/",
  "DownstreamScheme": "ws",
  "DownstreamHostAndPorts": [
    {
      "Host": "localhost",
      "Port": 44878
    }
  ]
}

The connection methods in our frontend (Angular):

private createConnection() {
    if (!this.connection) {
      this.connection = new HubConnectionBuilder()
        .withUrl('https://localhost:44325/signalr-hubs/demo',
          {
            accessTokenFactory: () => this.userService.getAccessToken(),
            transport: HttpTransportType.ServerSentEvents
          })

        // .withUrl('/Notifications',
        //     {
        //         accessTokenFactory: () => userId,
        //         // THis will use websockets by default, if it does not work try uncommenting this line
        //         // transport: HttpTransportType.ServerSentEvents
        //     })
        .withAutomaticReconnect()
        // .configureLogging(LogLevel.Debug)
        .build();
    }
  }

  connectNotifications() {
    if (!this.userService.hasValidAccessToken()) return;
    this.createConnection();

    if (this.connection.state == HubConnectionState.Disconnected)
      this.connection
        .start()
        .catch(err => console.log('Error while starting connection to notification service: ' + err));

    this.connection.on('1q1q', console.log);

  }

  sendMessage(val: string) {

    console.log(this.connection.state);

    this.connection.send('1q1q', val)
  }

When we load the page that tries to connect to the hub we get the following logs and Network status:

WebGateway:

2024-03-12 16:03:43.651 -03:00 [INF] Request starting HTTP/2 OPTIONS https://localhost:44325/signalr-hubs/demo/negotiate?negotiateVersion=1 - -
2024-03-12 16:03:43.651 -03:00 [INF] CORS policy execution successful.
2024-03-12 16:03:43.651 -03:00 [INF] Request finished HTTP/2 OPTIONS https://localhost:44325/signalr-hubs/demo/negotiate?negotiateVersion=1 - - - 204 - - 0.2349ms
2024-03-12 16:03:43.663 -03:00 [INF] Request starting HTTP/2 POST https://localhost:44325/signalr-hubs/demo/negotiate?negotiateVersion=1 - 0
2024-03-12 16:03:43.664 -03:00 [INF] CORS policy execution successful.
2024-03-12 16:03:43.664 -03:00 [INF] requestId: 0HN22O3N3S1OM:00000001, previousRequestId: no previous request id, message: EndpointRateLimiting is not enabled for /signalr-hubs/{everything}
2024-03-12 16:03:43.664 -03:00 [INF] requestId: 0HN22O3N3S1OM:00000001, previousRequestId: no previous request id, message: No authentication needed for /signalr-hubs/demo/negotiate
2024-03-12 16:03:43.664 -03:00 [INF] requestId: 0HN22O3N3S1OM:00000001, previousRequestId: no previous request id, message: /signalr-hubs/{everything} route does not require user to be authorized
2024-03-12 16:03:43.895 -03:00 [INF] requestId: 0HN22O3N3S1OM:00000001, previousRequestId: no previous request id, message: 200 (OK) status code, request uri: https://localhost:44878/signalr-hubs/demo/negotiate?negotiateVersion=1
2024-03-12 16:03:43.895 -03:00 [INF] Request finished HTTP/2 POST https://localhost:44325/signalr-hubs/demo/negotiate?negotiateVersion=1 - 0 - 200 316 application/json 231.5712ms
2024-03-12 16:03:43.906 -03:00 [INF] Request starting HTTP/2 GET https://localhost:44325/signalr-hubs/demo?id=RnQFLvileEO8aoDcl7QboQ&access_token=eyJh...asd - -
2024-03-12 16:03:43.906 -03:00 [INF] CORS policy execution successful.
2024-03-12 16:03:43.907 -03:00 [INF] requestId: 0HN22O3N3S1OM:00000003, previousRequestId: no previous request id, message: EndpointRateLimiting is not enabled for /signalr-hubs/{everything}
2024-03-12 16:03:43.907 -03:00 [INF] requestId: 0HN22O3N3S1OM:00000003, previousRequestId: no previous request id, message: No authentication needed for /signalr-hubs/demo
2024-03-12 16:03:43.907 -03:00 [INF] requestId: 0HN22O3N3S1OM:00000003, previousRequestId: no previous request id, message: /signalr-hubs/{everything} route does not require user to be authorized
2024-03-12 16:05:13.908 -03:00 [WRN] requestId: 0HN22O3N3S1OM:00000003, previousRequestId: no previous request id, message: Error Code: RequestTimedOutError Message: Timeout making http request, exception: System.Threading.Tasks.TaskCanceledException: The request was canceled due to the configured HttpClient.Timeout of 90 seconds elapsing.
 ---> System.TimeoutException: The operation was canceled.
 ---> System.Threading.Tasks.TaskCanceledException: The operation was canceled.
 ---> System.IO.IOException: Unable to read data from the transport connection: La operación de E/S se anuló por una salida de subproceso o por una solicitud de aplicación..
 ---> System.Net.Sockets.SocketException (995): La operación de E/S se anuló por una salida de subproceso o por una solicitud de aplicación.
   --- End of inner exception stack trace ---
   at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.ThrowException(SocketError error, CancellationToken cancellationToken)
   at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.System.Threading.Tasks.Sources.IValueTaskSource<System.Int32>.GetResult(Int16 token)
   at System.Net.Security.SslStream.EnsureFullTlsFrameAsync[TIOAdapter](CancellationToken cancellationToken)
   at System.Runtime.CompilerServices.PoolingAsyncValueTaskMethodBuilder`1.StateMachineBox`1.System.Threading.Tasks.Sources.IValueTaskSource<TResult>.GetResult(Int16 token)
   at System.Net.Security.SslStream.ReadAsyncInternal[TIOAdapter](Memory`1 buffer, CancellationToken cancellationToken)
   at System.Runtime.CompilerServices.PoolingAsyncValueTaskMethodBuilder`1.StateMachineBox`1.System.Threading.Tasks.Sources.IValueTaskSource&lt;TResult&gt;.GetResult(Int16 token)
   at System.Net.Http.HttpConnection.FillAsync(Boolean async)
   at System.Net.Http.HttpConnection.ChunkedEncodingReadStream.CopyToAsyncCore(Stream destination, CancellationToken cancellationToken)
   --- End of inner exception stack trace ---
   at System.Net.Http.HttpConnection.ChunkedEncodingReadStream.CopyToAsyncCore(Stream destination, CancellationToken cancellationToken)
   at System.Net.Http.HttpConnectionResponseContent.&lt;SerializeToStreamAsync&gt;g__Impl|6_0(Stream stream, TransportContext context, CancellationToken cancellationToken)
   at System.Net.Http.HttpContent.LoadIntoBufferAsyncCore(Task serializeToStreamTask, MemoryStream tempBuffer)
   at System.Net.Http.HttpClient.&lt;SendAsync&gt;g__Core|83_0(HttpRequestMessage request, HttpCompletionOption completionOption, CancellationTokenSource cts, Boolean disposeCts, CancellationTokenSource pendingRequestsCts, CancellationToken originalCancellationToken)
   --- End of inner exception stack trace ---
   --- End of inner exception stack trace ---
   at System.Net.Http.HttpClient.HandleFailure(Exception e, Boolean telemetryStarted, HttpResponseMessage response, CancellationTokenSource cts, CancellationToken cancellationToken, CancellationTokenSource pendingRequestsCts)
   at System.Net.Http.HttpClient.&lt;SendAsync&gt;g__Core|83_0(HttpRequestMessage request, HttpCompletionOption completionOption, CancellationTokenSource cts, Boolean disposeCts, CancellationTokenSource pendingRequestsCts, CancellationToken originalCancellationToken)
   at Ocelot.Requester.HttpClientHttpRequester.GetResponse(HttpContext httpContext) errors found in ResponderMiddleware. Setting error response for request path:/signalr-hubs/demo, request method: GET
2024-03-12 16:05:13.908 -03:00 [INF] Request finished HTTP/2 GET https://localhost:44325/signalr-hubs/demo?id=RnQFLvileEO8aoDcl7QboQ&access_token=eyJh...asd - - - 503 0 - 90002.9186ms

OperacionesService:

2024-03-12 16:03:43.676 -03:00 [INF] Request starting HTTP/1.1 POST https://localhost:44878/signalr-hubs/demo/negotiate?negotiateVersion=1 - 0
2024-03-12 16:03:43.889 -03:00 [INF] Executing endpoint '/signalr-hubs/demo/negotiate'
2024-03-12 16:03:43.894 -03:00 [INF] Executed endpoint '/signalr-hubs/demo/negotiate'
2024-03-12 16:03:43.895 -03:00 [INF] Request finished HTTP/1.1 POST https://localhost:44878/signalr-hubs/demo/negotiate?negotiateVersion=1 - 0 - 200 316 application/json 218.4628ms
2024-03-12 16:03:43.908 -03:00 [INF] Request starting HTTP/1.1 GET https://localhost:44878/signalr-hubs/demo?id=RnQFLvileEO8aoDcl7QboQ&access_token=eyJhb...asd - 0
2024-03-12 16:03:43.910 -03:00 [INF] Executing endpoint '/signalr-hubs/demo'
2024-03-12 16:05:13.918 -03:00 [INF] Executed endpoint '/signalr-hubs/demo'
2024-03-12 16:05:13.920 -03:00 [INF] Request finished HTTP/1.1 GET https://localhost:44878/signalr-hubs/demo?id=RnQFLvileEO8aoDcl7QboQ&access_token=eyJhb...asd - 0 - 200 - text/event-stream 90013.2758ms

13 Answer(s)

0

liangshiwei created one month ago
Support Team Fullstack Developer

Hi,

transport: HttpTransportType.ServerSentEvents

Can you try using websocket instead of ServerSentEvents?

malvarado created one month ago

Hello liangshiwei,

I just tried that. Now I'm not getting the TimeOut error, but it seems it's still not connecting correctly. These are the logs:

WebGateway (You can see a UnableToFindDownstreamRouteError error):

2024-03-13 08:57:47.440 -03:00 [INF] Request starting HTTP/2 OPTIONS https://localhost:44325/signalr-hubs/demo/negotiate?negotiateVersion=1 - -
2024-03-13 08:57:47.440 -03:00 [INF] CORS policy execution successful.
2024-03-13 08:57:47.440 -03:00 [INF] Request finished HTTP/2 OPTIONS https://localhost:44325/signalr-hubs/demo/negotiate?negotiateVersion=1 - - - 204 - - 0.2458ms
2024-03-13 08:57:47.451 -03:00 [INF] Request starting HTTP/2 POST https://localhost:44325/signalr-hubs/demo/negotiate?negotiateVersion=1 - 0
2024-03-13 08:57:47.451 -03:00 [INF] CORS policy execution successful.
2024-03-13 08:57:47.452 -03:00 [INF] requestId: 0HN22O3N3S1OQ:00000001, previousRequestId: no previous request id, message: EndpointRateLimiting is not enabled for /signalr-hubs/{everything}
2024-03-13 08:57:47.452 -03:00 [INF] requestId: 0HN22O3N3S1OQ:00000001, previousRequestId: no previous request id, message: No authentication needed for /signalr-hubs/demo/negotiate
2024-03-13 08:57:47.452 -03:00 [INF] requestId: 0HN22O3N3S1OQ:00000001, previousRequestId: no previous request id, message: /signalr-hubs/{everything} route does not require user to be authorized
2024-03-13 08:57:47.465 -03:00 [INF] requestId: 0HN22O3N3S1OQ:00000001, previousRequestId: no previous request id, message: 200 (OK) status code, request uri: https://localhost:44878/signalr-hubs/demo/negotiate?negotiateVersion=1
2024-03-13 08:57:47.466 -03:00 [INF] Request finished HTTP/2 POST https://localhost:44325/signalr-hubs/demo/negotiate?negotiateVersion=1 - 0 - 200 316 application/json 14.6363ms
2024-03-13 08:57:47.478 -03:00 [INF] Request starting HTTP/2 CONNECT https://localhost:44325/signalr-hubs/demo?id=-BoVMzEFfiK1Z_aHpGzQGw&access_token=eyJh...asd - -
2024-03-13 08:57:47.478 -03:00 [INF] CORS policy execution successful.
2024-03-13 08:57:47.478 -03:00 [WRN] requestId: 0HN22O3N3S1OQ:00000003, previousRequestId: no previous request id, message: DownstreamRouteFinderMiddleware setting pipeline errors. IDownstreamRouteFinder returned Error Code: UnableToFindDownstreamRouteError Message: Failed to match Route configuration for upstream path: /signalr-hubs/demo, verb: CONNECT.
2024-03-13 08:57:47.478 -03:00 [INF] Request finished HTTP/2 CONNECT https://localhost:44325/signalr-hubs/demo?id=-BoVMzEFfiK1Z_aHpGzQGw&access_token=eyJh...asd - - - 200 - - 0.5002ms
2024-03-13 08:57:47.478 -03:00 [INF] Connection id "0HN22O3N3S1OQ", Request id "0HN22O3N3S1OQ:00000003": the application completed without reading the entire request body.

OperacionesService:

2024-03-13 08:57:47.462 -03:00 [INF] Request starting HTTP/1.1 POST https://localhost:44878/signalr-hubs/demo/negotiate?negotiateVersion=1 - 0
2024-03-13 08:57:47.464 -03:00 [INF] Executing endpoint '/signalr-hubs/demo/negotiate'
2024-03-13 08:57:47.465 -03:00 [INF] Executed endpoint '/signalr-hubs/demo/negotiate'
2024-03-13 08:57:47.465 -03:00 [INF] Request finished HTTP/1.1 POST https://localhost:44878/signalr-hubs/demo/negotiate?negotiateVersion=1 - 0 - 200 316 application/json 3.4574ms

The request appears to return a 200 code, but it still doesn't get to the hub methods:

Also when we try to send a message we still get the following error (we were getting the same error before the change you suggested also):

liangshiwei created one month ago

Support Team Fullstack Developer

You can try updating your Ocelot config

{
    
    "DownstreamPathTemplate": "/signalr-hubs/{everything}",
    "DownstreamScheme": "ws", // or wss
    "DownstreamHostAndPorts": [
        {
        "Host": "localhost",
        "Port": 44878
        }
    ],
    "UpstreamPathTemplate": "/signalr-hubs/{everything}"
}

malvarado created one month ago

I'm still getting errors with signalr. I tried updating the Ocelot config as you mentioned and it still doesn't work.

I tried different configurations and it throws different errors. With this current configuration, both handshakes return 200 codes. Then the WS request returns a 200 code but appears to throw and "Unrecognized frame upcode: 6" error, and we get a new Exception on the WebGateway log:

Current WebGateway config:

{
  "DownstreamPathTemplate": "/signalr-hubs/{everything}",
  "DownstreamScheme": "wss",
  "DownstreamHostAndPorts": [
	{
	  "Host": "localhost",
	  "Port": 44878
	}
  ],
  "UpstreamPathTemplate": "/signalr-hubs/{everything}"
},
{
  "DownstreamPathTemplate": "/ws",
  "UpstreamPathTemplate": "/",
  "DownstreamScheme": "wss",
  "DownstreamHostAndPorts": [
	{
	  "Host": "localhost",
	  "Port": 44878
	}
  ]
}

WebGateway logs:

2024-03-14 13:34:20.456 -03:00 [INF] Request starting HTTP/2 OPTIONS https://localhost:44325/signalr-hubs/demo/negotiate?negotiateVersion=1 - -
2024-03-14 13:34:20.457 -03:00 [INF] CORS policy execution successful.
2024-03-14 13:34:20.457 -03:00 [INF] Request finished HTTP/2 OPTIONS https://localhost:44325/signalr-hubs/demo/negotiate?negotiateVersion=1 - - - 204 - - 0.4313ms
2024-03-14 13:34:20.470 -03:00 [INF] Request starting HTTP/2 POST https://localhost:44325/signalr-hubs/demo/negotiate?negotiateVersion=1 - 0
2024-03-14 13:34:20.471 -03:00 [INF] CORS policy execution successful.
2024-03-14 13:34:20.471 -03:00 [INF] requestId: 0HN248IBU7TIA:00000001, previousRequestId: no previous request id, message: EndpointRateLimiting is not enabled for /signalr-hubs/{everything}
2024-03-14 13:34:20.471 -03:00 [INF] requestId: 0HN248IBU7TIA:00000001, previousRequestId: no previous request id, message: No authentication needed for /signalr-hubs/demo/negotiate
2024-03-14 13:34:20.471 -03:00 [INF] requestId: 0HN248IBU7TIA:00000001, previousRequestId: no previous request id, message: /signalr-hubs/{everything} route does not require user to be authorized
2024-03-14 13:34:20.485 -03:00 [INF] requestId: 0HN248IBU7TIA:00000001, previousRequestId: no previous request id, message: 200 (OK) status code, request uri: wss://localhost:44878/signalr-hubs/demo/negotiate?negotiateVersion=1
2024-03-14 13:34:20.485 -03:00 [INF] Request finished HTTP/2 POST https://localhost:44325/signalr-hubs/demo/negotiate?negotiateVersion=1 - 0 - 200 316 application/json 14.7364ms
2024-03-14 13:34:20.497 -03:00 [INF] Request starting HTTP/2 CONNECT https://localhost:44325/signalr-hubs/demo?id=O_QfCDfM1fl8YqKTWpheSg&access_token=eyJh...asd - -
2024-03-14 13:34:20.497 -03:00 [INF] CORS policy execution successful.
2024-03-14 13:34:20.524 -03:00 [ERR] requestId: 0HN248IBU7TIA:00000003, previousRequestId: no previous request id, message: Exception caught in global error handler, exception message: The WebSocket is in an invalid state ('Aborted') for this operation. Valid states are: 'Open, CloseReceived', exception stack:    at System.Net.WebSockets.WebSocketValidate.ThrowIfInvalidState(WebSocketState currentState, Boolean isDisposed, WebSocketState[] validStates)
   at System.Net.WebSockets.ManagedWebSocket.CloseOutputAsyncCore(WebSocketCloseStatus closeStatus, String statusDescription, CancellationToken cancellationToken)
   at Ocelot.WebSockets.Middleware.WebSocketsProxyMiddleware.PumpWebSocket(WebSocket source, WebSocket destination, Int32 bufferSize, CancellationToken cancellationToken)
   at Ocelot.WebSockets.Middleware.WebSocketsProxyMiddleware.Proxy(HttpContext context, String serverEndpoint)
   at Ocelot.WebSockets.Middleware.WebSocketsProxyMiddleware.Invoke(HttpContext httpContext)
   at Ocelot.DownstreamUrlCreator.Middleware.DownstreamUrlCreatorMiddleware.Invoke(HttpContext httpContext)
   at Ocelot.LoadBalancer.Middleware.LoadBalancingMiddleware.Invoke(HttpContext httpContext)
   at Ocelot.Request.Middleware.DownstreamRequestInitialiserMiddleware.Invoke(HttpContext httpContext)
   at Ocelot.Multiplexer.MultiplexingMiddleware.Invoke(HttpContext httpContext)
   at Ocelot.DownstreamRouteFinder.Middleware.DownstreamRouteFinderMiddleware.Invoke(HttpContext httpContext)
   at Ocelot.Errors.Middleware.ExceptionHandlerMiddleware.Invoke(HttpContext httpContext) RequestId: 0HN248IBU7TIA:00000003
System.Net.WebSockets.WebSocketException (0x80004005): The WebSocket is in an invalid state ('Aborted') for this operation. Valid states are: 'Open, CloseReceived'
   at System.Net.WebSockets.WebSocketValidate.ThrowIfInvalidState(WebSocketState currentState, Boolean isDisposed, WebSocketState[] validStates)
   at System.Net.WebSockets.ManagedWebSocket.CloseOutputAsyncCore(WebSocketCloseStatus closeStatus, String statusDescription, CancellationToken cancellationToken)
   at Ocelot.WebSockets.Middleware.WebSocketsProxyMiddleware.PumpWebSocket(WebSocket source, WebSocket destination, Int32 bufferSize, CancellationToken cancellationToken)
   at Ocelot.WebSockets.Middleware.WebSocketsProxyMiddleware.Proxy(HttpContext context, String serverEndpoint)
   at Ocelot.WebSockets.Middleware.WebSocketsProxyMiddleware.Invoke(HttpContext httpContext)
   at Ocelot.DownstreamUrlCreator.Middleware.DownstreamUrlCreatorMiddleware.Invoke(HttpContext httpContext)
   at Ocelot.LoadBalancer.Middleware.LoadBalancingMiddleware.Invoke(HttpContext httpContext)
   at Ocelot.Request.Middleware.DownstreamRequestInitialiserMiddleware.Invoke(HttpContext httpContext)
   at Ocelot.Multiplexer.MultiplexingMiddleware.Invoke(HttpContext httpContext)
   at Ocelot.DownstreamRouteFinder.Middleware.DownstreamRouteFinderMiddleware.Invoke(HttpContext httpContext)
   at Ocelot.Errors.Middleware.ExceptionHandlerMiddleware.Invoke(HttpContext httpContext)
2024-03-14 13:34:20.525 -03:00 [INF] Request finished HTTP/2 CONNECT https://localhost:44325/signalr-hubs/demo?id=O_QfCDfM1fl8YqKTWpheSg&access_token=eyJh...asd - - - 200 - - 28.1154ms

The WS request returns a 200 code, but in the messages tab it shows an error:

0

liangshiwei created one month ago
Support Team Fullstack Developer

Hi,

This may be a problem with Ocelot, I'm not sure.

https://github.com/ThreeMammals/Ocelot/issues/930

Could you share a simple project via email that can reproduce the problem with me? I will check it. thanks shiwei.liang@volosoft.com
0

malvarado created one month ago

Hi,

I just sent you an example project via email. Please, let me know if you need anything else to test the problem.

Thanks!

liangshiwei created one month ago

Support Team Fullstack Developer

Hi,

Update route config:

{
      "DownstreamPathTemplate": "/signalr-hubs/{everything}",
      "DownstreamScheme": "wss",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 44361
        }
      ],
      "UpstreamPathTemplate": "/signalr-hubs/{everything}"
    },
    {
      "DownstreamPathTemplate": "/ws",
      "UpstreamPathTemplate": "/",
      "DownstreamScheme": "wss",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 44361
        }
      ]
    }

Add app.UseWebSockets(); to TransitWebGatewayModule

app.UseWebSockets();
app.UseOcelot().Wait();

Update ServiciodemoService

private createConnection() {
if (!this.connection) {
  this.connection = new HubConnectionBuilder()
    .withUrl('https://localhost:44325/signalr-hubs/demo',
      {
        accessTokenFactory: () => this.userService.getAccessToken(),
        transport: HttpTransportType.WebSockets
      })

    // .withUrl('/Notifications',
    //     {
    //         accessTokenFactory: () => userId,
    //         // THis will use websockets by default, if it does not work try uncommenting this line
    //         // transport: HttpTransportType.ServerSentEvents
    //     })
    .withAutomaticReconnect()
    // .configureLogging(LogLevel.Debug)
    .build();

    this.connection.start();
}
}

0
malvarado created one month ago
Hi,

Can you upload the full solution to the same Google Drive I uploaded it?

I implemented the fixes and I'm still getting the same errors:

Handshakes work fine

Requests returns 200 code, but I'm still getting the errors:

On frontend: WebSocket connection to 'wss://localhost:44325/signalr-hubs/demo?id=G-hyAmzj1-GUAN6EYnrTyw' failed: Unrecognized frame opcode: 6 WebSocket closed with status code: 1006 (no reason given).

On WebGateway log:

requestId: 0HN28RBEI53CU:00000003, previousRequestId: no previous request id, message: Exception caught in global error handler, exception message: The WebSocket is in an invalid state ('Aborted') for this operation. Valid states are: 'Open, CloseReceived', exception stack: at System.Net.WebSockets.WebSocketValidate.ThrowIfInvalidState(WebSocketState currentState, Boolean isDisposed, WebSocketState[] validStates)

Thanks!
0

liangshiwei created one month ago
Support Team Fullstack Developer

Ok, shared
0

malvarado created one month ago

Hello,

We are still experiencing the same errors.

Could this be an issue related to some configuration on our machines related to WebSockets? Or maybe the Locale/Region the frontend and backend are configured? (maybe the Signalr library expects or uses english, and the locales in our machines are in spanish)

Thanks!
0

liangshiwei created one month ago
Support Team Fullstack Developer

Hi,

It looks like SignalR is working, but the connect is closed abnormally.

You can check those: https://stackoverflow.com/questions/53944572/signalr-core-error-websocket-closed-with-status-code-1006 https://stackoverflow.com/questions/19304157/getting-the-reason-why-websockets-closed-with-close-code-1006
0

malvarado created one month ago

Hi,

I made some more tests, and I found out that if I run the WebGateway with IIS Express from Visual Studio, Signalr works fine.

I only get the errors when I run the csproj direclty, either from Visual Studio or with Tye.

Why could this be? Is there a way to configure the csproj, Program.cs, or tye so it has the same behavior as when running it with IIS?

Thanks.
0

liangshiwei created one month ago
Support Team Fullstack Developer

Hi,

Maybe you can check this: https://github.com/dotnet/aspnetcore/issues/41675 They explain how to view more detailed logs to check the cause of the error

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