title: Firebase - how to send data messages (not notification messages)?
body: <p><a href="https://firebase.google.com/docs/cloud-messaging/concept-options" rel="nofollow noreferrer">In firebase documentation they say</a>:</p>
  <blockquote>
  <p>With FCM, you can send two types of messages to clients:</p>
  <p>Notification messages, sometimes thought of as &quot;display messages.&quot;
  These are handled by the FCM SDK automatically.</p>
  <p>Data messages, which
  are handled by the client app.</p>
  </blockquote>
  <p>It is very easy and straightforward to send <code>notification message</code> through firebase console (I just use Grow =&gt; Cloud messaging =&gt; New notification).</p>
  <p>However there is no such section for <code>data messages</code>, and also documentation does not contains almost any related informations.</p>
  <p><strong>How to send data message from firebase console?</strong> I dont want to send notification message, because that is basically just a display message handled automatically - I want to send a data message, so I can handle it on my own, inside my app and do something on background</p>