CODEWITHSUNDEEP
signalrasp.net-core-signalr
Dave New
Dave New

Reputation: 40092

Determine transport method in SignalR Core?

In SignalR 2.0 the transport method can be determined by the transport parameter in the query string.

string transportMethod = queryString["transport"];

This doesn't seem to be the case in SignalR for ASP.NET Core.

The best I can do, it seems, is to use header information.

For WebSocket connections:

Connection = Upgrade
Upgrade = Websocket

And long polling:

Connection = Keep-Alive

And server-sent events:

Connection = Keep-Alive
Accept = text/event-stream

Is there a better/easier way to go about determining the transport method?

Upvotes: 2

Views: 2108

Answers (3)

Jesse Sierks
Jesse Sierks

Reputation: 2397

https://stackoverflow.com/a/53577064/2068719

// using Microsoft.AspNetCore.Http.Connections.Features;

var transportType = Context.Features.Get<IHttpTransportFeature>().TransportType;

Upvotes: 1

Code OverFlow
Code OverFlow

Reputation: 979

To get Signalr TransportType.

Context.Features.Get<IHttpTransportFeature>().TransportType.ToString()

Upvotes: 2

Mikael Mengistu
Mikael Mengistu

Reputation: 342

You can get the transport type from the HubCallerContext like so

 Context.Items[ConnectionMetadataNames.Transport]

Upvotes: 1

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