title: Firebase Cloud Messaging Statistics API
body: <p>I'm using an application server to send messages by Firebase Cloud Messaging.
  Firebase console does not list such a message which sent by app server.
  When I use Firebase console directly to send messages, it will display some analysis on its own messages.</p>
  
  <p>Like this:
  <a href="https://i.stack.imgur.com/FNkWB.png" rel="noreferrer"><img src="https://i.stack.imgur.com/FNkWB.png" alt="enter image description here"></a></p>
  
  <p>The questions is, how can I access message statistics when I'm using an app servers?</p>