Unable to play the sample client to server streaming example in ASP.NET Core SignalR

I am working on the .NET Framework 4.6.1. I want to stream data from the typescript client to my service. I have taken code from here.This is the service side code :

public async Task UploadStream(ChannelReader<byte[]> stream){    while (await stream.WaitToReadAsync())    {        while (stream.TryRead(out var item))        {            // do something with the stream item            Console.WriteLine(item);        }    }}

Client side:

const subject = new signalR.Subject();await connection.send("UploadStream", subject);// getting the byte data and calling next  in a loop. subject.next(data);

I am using ASP .NET core SignalR library. These are the packages installed at the server side: Microsoft.AspNetCore 1.1.0 , Microsoft.AspNetCore.SignalR.Common 1.1.0,Microsoft.AspNetCore.SignalR.Core 1.1.0, Microsoft.AspNetCore.SignalR.PRotocols.MessagePack 1.1.0

At the client side, I have the latest preview release."@aspnet/signalr": "3.0.0-preview6.19307.2","@aspnet/signalr-protocol-msgpack": "3.0.0-preview6.19307.2",

I tried searching for the right package to install for ASP.NET framework but didn't find anything. Is this functionality available for .NET Framework 4.6.1.

When I am calling the UploadaStream function from the client side. I have received an error specifying that unable to invoke the "UploadStream" function.Please tell me the right set of the package to install.