Get signalr connectionid outside of hub

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Hi!
I am trying to make something like customer service chat with signalr.
I am able to use signalr to send message to every client but struggle with getting connectionID value anywhere outside of ChatHub so i could send to induvidual clients.

Here is my controller code

C#

public IActionResult PosaljiPoruku(PorukaVM model)
       {



           _hubContext.Clients.All.SendAsync("PrimljenaPoruka",model.Poruka );
           return PartialView("SubmitFormPartial");
       }

my js file

JavaScript

var connection = new signalR.HubConnectionBuilder()
    .withUrl("/chatt", {
        accessTokenFactory: () => "testing"
    })
    .build();

connection.on("PrimljenaPoruka", function (poruka) {

   //code for generating new message

   
});


connection.start().catch(function (err) {
    return console.error(err.toString());
});

and my hub code

C#

public class ChatHub : Hub
    {

        public string GetConnectionId()
        {
            return Context.ConnectionId;
        }

       

    }

What I have tried:

Tried some stuff that doesn't work like creating ChatHub instance in controller, accesing GetConnectionId() with ihubContext...

Saw somewhere that this code could be used to access connectionID on client side but not sure how to call it?

JavaScript

//connection.invoke('GetConnectionId')
//    .then(function (connectionId) {
//        // Send the connectionId to controller
//    });

I am really stuck on this for some time now any help is really appreciated!!!!!
Thanks for reading and trying to help!

Posted 22-Jan-21 15:50pm

sasko1

Updated 24-Jan-21 14:17pm

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2 solutions

Solution 1

Clearly you need to write the getconnectionid method, in order to take a value on your server, and share it with clients. Are you trying to create a group chat or connection? I am not sure you can just share an id and add someone to a session?

Posted 22-Jan-21 16:28pm

Christian Graus

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sasko1 · Accepted Answer · 2021-01-24T14:17:00

Solution 2

I solved it like this

JavaScript

connection.start().then(function () {
   connection.invoke('GetConnectionId')
   .then(function (connectionId) {
      //alert(connectionId);

   })

Posted 24-Jan-21 14:17pm

sasko1