This question already has an answer here:
Is it possible to track push notification from firebase console which is send from server-side or Rest client.
See duplicate post.
No. Currently, only messages sent through the Firebase Notifications Console are visible in the console. Messages sent through the API could be tracked in the Diagnostics Tool, keeping in mind that this doesn't include messages sent to topics.
来源：https://stackoverflow.com/questions/44697015/how-to-track-fcm-push-notifications-send-form-server-side-or-rest-client