title: Pushing message to groups in SignalR
body: <p>Just trying to wrap my mind around handling pushing data to <strong><em>some users</em></strong> through <code>SignalR</code>.</p>
  
  <p>Say, in a private chat situation, <code>Person A</code> sends a message to <code>Person B</code>. If I'm understanding the concept correctly, I need to create a <code>Group</code> for each user who logged into the system. This way, when the new message from <code>Person A</code> comes in, in my <code>SignalR Hub</code>, I'd send the message to the group for <code>Person B</code> which only has only one user in it i.e. <code>Person B</code>.</p>
  
  <p>In this approach, I'd essentially create a unique <code>Group</code> for each user so that I have the flexibility to push data to each unique user. I could use the <code>UserId</code> as the <code>Group</code> Id.</p>
  
  <p>Is this the way to handle pushing data selectively to each unique user?</p>