问题
What exactly is Server Key? I used (on a pitcure above) server key, and legacy server key but neither of them work.
Does anybody have clue what is wrong? For token -> I used FCM token I got from firebase messaging like this:
firestoreMessaging.getToken()
来源：https://stackoverflow.com/questions/56723045/send-push-message-using-firebase-cloud-messaging-what-is-my-server-key