We use in our application the SignalR Persistent Connection API, as explained at https://docs.microsoft.com/en-us/aspnet/signalr/overview/getting-started/introduction-to-signalr#connections-and-hubs
In current 2.1 version of ASP.NET Core SignalR we still don't see this API implemented. Is the hub model compatible and scalable as well? Any chance the persistent connection API will be available?