How to send Parameter/Query in HubConnection SignalR Core

问题

I'm trying to add parameter into connection to signalr.

I'm using Builder to create my Client connection and start it:

var connection = new HubConnectionBuilder()
        .WithUrl("http://10.0.2.162:5002/connection")
        .WithConsoleLogger()
        .WithMessagePackProtocol()
        .WithTransport(TransportType.WebSockets)
        .Build();

await connection.StartAsync();

I want to send a simple parameter in this connection: Something Like:

"Token": "123"

In my server side i think i can take this parameter from HttpContext:

public override Task OnConnectedAsync()
{
    var httpContext = Context.Connection.GetHttpContext();
    var token = httpContext.Request.Query["Token"];
    return base.OnConnectedAsync();
}

Any idea of how to send this parameter? Thanks.

回答1:

I have found how to do this after much research:

On my build i just send the token from url connection. Like this:

var connection = new HubConnectionBuilder()
        .WithUrl($"http://10.0.2.162:5002/connection?token={token}")
        .WithConsoleLogger()
        .WithMessagePackProtocol()
        .WithTransport(TransportType.WebSockets)
        .Build();

来源：https://stackoverflow.com/questions/49038762/how-to-send-parameter-query-in-hubconnection-signalr-core