title: signalr: how to update all clients having specific cookie value?
body: <p>We have an API exposed from where our partner networks can send loan offers and this offer gets saved in our MySQL database. For example, they send offer as:</p>
  
  <pre><code>/api/loanoffer/
  {
    "mobile": "+23498234",
    "offer": "$ 23443"
  }
  </code></pre>
  
  <p>We want to show this loan offer immediately to all our connected clients (by matching the mobile number of the offer and connected client). </p>
  
  <p>We save mobile information of the users in client cookies. How can we relay this information from mysql database to all the connected clients? It would be best if we can give solution keeping web, ios and android client in mind.</p>