title: SignalR message from client to Server
body: <p>I have a web api running in azure and windows service locally running on premise. These 'client' logon on the Hub in the web api. When api sends out a command to all clients, all is well received. No problems here.
  However, is it possible to send it signal from the same websocket from the client to the server, so from the windows service to the web api? Now my service calls a controller on the web api, but this feels redundant, cause there already would be a websocket available, right?</p>
  
  <p>I am a bit new to signalR, so any help would be appreciate.</p>
  
  <p>thnx!</p>