FR: Sending message to multi devices

[canhlinh]

Hi team,

Do you have any plan to support sending message to multiple devices ?
As technical document was described at here https://firebase.google.com/docs/cloud-messaging/android/send-multiple

That would be nice if the firebase-go can support this feature.

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[hiranya911]

We already support sending messages to topics. Device groups are not supported in the v1 API and I don't think the FCM team is planning to add it either. But we are looking at other alternatives for multicast messaging with tokens.

[canhlinh]

@hiranya911 Sending message to multi tokens at the same time is a good choice.
I have already done it with GCM and APNs. Please support on FCM

[chong-shao]

Hi @hiranya911, I think currently multicast is not supported by go SDK. Is there anything I can help?

[hiranya911]

I will eventually get to it. Developers are also invited to provide a pull request and help things move along.