With FCM we use the firebase registration tokens to identify the devices. How does the FCM server know the IP of the device to whom it needs to send a message over a connection? For eg., if I am on a constant move and my IP keeps on changing, then the FCM server needs to know about it. Is there a service sitting inside my app has the responsibility of updating it? How does it actually happen? If possible please do provide a link to some reliable source explaining this.
Asked
Active
Viewed 372 times
1 Answers
3
This action is performed by Google Play Services. This registers with the FCM servers, and then checks for messages for the device's Instance ID token.
Frank van Puffelen
- 565,676
- 79
- 828
- 807
-
You mean the device polls for messages from the FCM servers? – Swapnil Apr 30 '19 at 15:50