title: Signalr - It's possible to wait reponse from client?
body: <p>I am a beginner in using Signalr and am checking out some examples.</p>
  
  <p>Is it possible to send a message to the client from the server and wait for a return from it? Or is it possible to guarantee that after the answer the same session will be used?</p>
  
  <p>My question is because in a given process, within a transaction, I need to ask the user if he wants to continue with the changes. I have not been able to ask this question before because validations should be done in the same session where changes have been made (but not yet confirmed).</p>