Any documentation for Firebase?

Is there any documentation for Firebase or somewhere to get started?

If you are planning to setup your own push-notification server, the FCM is pretty much the same as GCM, I did mine on GCM previously, and the API calls and commands are the same as FCM, so no changes if one is migrating from GCM to FCM.

A good start for FCM :

https://firebase.google.com/docs/cloud-messaging/send-message

There is also a plugin on marketplace.

https://marketplace.coronalabs.com/plugin/firebase

Also, this: https://marketplace.coronalabs.com/plugin/firebase-analytics

If you are planning to setup your own push-notification server, the FCM is pretty much the same as GCM, I did mine on GCM previously, and the API calls and commands are the same as FCM, so no changes if one is migrating from GCM to FCM.

A good start for FCM :

https://firebase.google.com/docs/cloud-messaging/send-message

There is also a plugin on marketplace.

https://marketplace.coronalabs.com/plugin/firebase

Also, this: https://marketplace.coronalabs.com/plugin/firebase-analytics