Cloud Messaging: The firebase-admin-sdk cloud messaging migration from legacy FCM APIs to HTTP v1

[ak-notify]

As I can see from the sdk code, its still using legacy FCM APIs, is there any plan to migrate it to HTTP v1 ?
Or there won't be any changes in the sdk and it will continue to work even after June 2024.
Refer: Migrate to v1 by June 2024

[georgwiltschek]

As I understand it, the Admin SDK Code has supported the HTTP v1 API for quite a while, but you have to use the messaging().send() Method instead of sendToDevice() (and other sendTo*-Methods), since the deprecatred sendTo*() Methods use the Legacy URLs. Someone please correct me if I'm wrong.

[mikejpeters]

@georgwiltschek is correct, the send() method has always used the v1 API since it was added to this SDK in 6.0.0, so it should be safe to use regardless of what version of the SDK you are on.

The sendToDevice / sendToDeviceGroup / sendAll / sendMulticast methods will stop working, and you have the option to switch to the send() method instead, or use the new APIs provided in SDK >= 11.7.0.

Sources

In the FAQ for FCM features deprecated in June 2023 there is a section on Firebase Admin SDK APIs:

API Name	Impact on users	Action Required
sendToDevice()	The API will stop working after 6/21/2024 because it calls the legacy HTTP send API.	Use the send() method.
sendToDeviceGroup()	The API will stop working after 6/21/2024 because it calls the legacy HTTP send API.	Use the send() method.
sendAll() / sendAllAsync() / send_all() / sendMulticast() / SendMulticastAsync() / send_multicast()	These APIs will stop working after 6/21/2024 because they call the batch send API .	Upgrade to the latest Firebase Admin SDK and use the new APIs instead: sendEach() / sendEachAsync() / send_each() / sendEachForMulticast() / sendEachForMulticastAsync() / send_each_for_multicast(). Note that the new APIs no longer call the deprecated batch send API, and for this reason they may create more concurrent HTTP connections than the old APIs.

It also says that Node.JS Firebase Admin versions >=11.7.0 have the new APIs.