title: Firebase notification records/log API
body: <p>I'm sending messages to several iOS Apps via 
  <a href="https://firebase.google.com/docs/cloud-messaging/" rel="noreferrer">FCM</a> by using their <a href="https://firebase.google.com/docs/cloud-messaging/http-server-ref" rel="noreferrer">HTTP protocol API</a>,</p>
  
  <p>and I need a list of message records including the payload, sent time, and platform like what I could monitor in the <a href="https://firebase.google.com/console/" rel="noreferrer">Firebase Notification Console</a>.</p>
  
  <p>It seems that messages sent via HTTP API wouldn't be recorded and shown in the console (only those sent manually in the console would).</p>
  
  <p>I haven't found any API documents related to those messaging events/log fetching.</p>
  
  <p>Is there a way to fetch this kind of message information from FCM?</p>