G. FCM

Firebase Messaging (FCM)

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.

Key capabilities

Capability	Description
Send notification messages or data messages	Send notification messages that are displayed to your user. Or send data messages and determine completely what happens in your application code. See Message types.
Versatile message targeting	Distribute messages to your client app in any of three ways to single devices, to groups of devices, or to devices subscribed to topics.
Send messages from client apps (Coming soon)	Send acknowledgments, chats, and other messages from devices back to your server over FCM's reliable and battery-efficient connection channel.

How does it work?

An FCM implementation includes an app server that interacts with FCM via HTTP or XMPP protocol, and a client app. You can compose and send messages using the app server or the Notifications console.

Firebase Notifications is built on Firebase Cloud Messaging and shares the same FCM SDK for client development. For testing or for sending marketing or engagement messages with powerful built-in targeting and analytics, you can use Notifications. For deployments with more complex messaging requirements, FCM is the right choice.

Implementation path

Step	Description
Set up the FCM SDK	Set up Firebase and FCM on your app according the setup instructions for your platform.
Develop your client app	Add message handling, topic subscription logic, or other optional features to your client app. During the development, you can easily send test messages from the Notifications console.
Develop your app server	Decide which server protocol(s) you want to use to interact with FCM, and add logic to authenticate, build send requests, handle response, and so on. Note that if you want to use upstream messaging from your client applications, you must use XMPP.

Get started with Firebase FCM in AdobeAIR

• Add FCM ANE to your project
• How to initialize the FCM ANE
• Send your first FCM message
• Send Multiple Messages
• How to create topics and send messages to them
• Send messages to Device Groups
• How to Send Upstream Message
• Understanding the difference between FCM Messages

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DISCRIMINATION: Firebase SDKs are developed by Google and they own every copyright to the Firebase "native" projects. However, we have used their "compiled" native SDKs to develop the ActionScript API to be used in AdobeAIR mobile projects. Moreover, as far as the documentations, we have copied and when needed has modified the Google documents so it will fit the needs of AdobeAIR community. If you wish to see the original documentations in Android/iOS, visit here. But if you are interested to do things in AdobeAIR, then you are in the right place.