index.html

<!doctype html>
<html>
  <head>
    <title>Incident Board</title>
    <style>
      * { margin: 0; padding: 0; box-sizing: border-box; }
      body { font: 13px Helvetica, Arial; }
      #messages { list-style-type: none; margin: 0; padding: 0; }
      #messages li { padding: 5px 10px; }
      #messages li:nth-child(odd) { background: #eee; }
    </style>
  </head>
  <body>
    Messages:
    <ul id="messages"></ul>

    <script src="/socket.io/socket.io.js"></script>
    <script src="https://code.jquery.com/jquery-1.11.1.js"></script>
    <script>
      $(function () {
        var socket = io();
        socket.on('webhook-fired', function(msg){
          console.dir(msg)
          $('#messages').append($('<li>').text(msg.payload.incident.fire_department.name + ':' + msg.payload.incident.description.incident_number + ' updated'));
        });
      });
    </script>
  </body>
</html>