CODEWITHSUNDEEP
androidfirebasefirebase-cloud-messaging
Swapnil
Swapnil

Reputation: 2051

How does FCM server identify the target device over the network?

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.

Upvotes: 2

Views: 487

Answers (1)

Frank van Puffelen
Frank van Puffelen

Reputation: 598765

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.

Upvotes: 4

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