Firebase Cloud Messaging

Versions

[{“Name”:“3.0.x”,“GroupName”:null},{“Name”:“3.1.x”,“GroupName”:null},{“Name”:“3.2.x”,“GroupName”:null},{“Name”:“4.0”,“GroupName”:null},{“Name”:“4.0.3”,“GroupName”:null},{“Name”:“4.1”,“GroupName”:null},{“Name”:“4.2”,“GroupName”:null},{“Name”:“4.3”,“GroupName”:null},{“Name”:“4.4”,“GroupName”:null},{“Name”:“4.4W”,“GroupName”:null},{“Name”:“5.0”,“GroupName”:null},{“Name”:“5.1”,“GroupName”:null},{“Name”:“6.0”,“GroupName”:null},{“Name”:“7.0”,“GroupName”:null},{“Name”:“7.1”,“GroupName”:null}]

Introduction

Firebase Cloud Messaging (FCM) is a cross-platform messaging solution that lets you reliably deliver messages at no cost.

Using FCM, you can notify a client app that new email or other data is available to sync. You can send notification messages to drive user reengagement and retention. For use cases such as instant messaging, a message can transfer a payload of up to 4KB to a client app.