Firebase Authentication extension for Adobe AIR (iOS & Android)
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Firebase Authentication | Extension for Adobe AIR (iOS & Android)

Firebase Authentication provides backend services and easy-to-use APIs to authenticate users to your app. It supports authentication using passwords, popular federated identity providers like Google, Facebook and Twitter, and more.


  • Authenticate user:
    • Anonymously
    • Using email & password
    • Using Facebook access token
    • Using Google Identity id and access tokens
    • Using GitHub access token
    • Using Twitter access token and secret
  • Link with/unlink from providers
  • Retrieve and update user information
  • Sign out

Firebase Auth SDK versions

  • iOS v3.0.4
  • Android v9.4.0

Getting started


FirebaseAuth extension requires FirebaseConfig and FirebaseCore extensions. See the instructions for each extension and add them to your project.

Additions to AIR descriptor

After you deal with the prerequisites, add the extension's ID to the extensions element.


If you are targeting Android, add the following extensions from this repository as well (unless you know these libraries are included by some other extensions):


For Android support, modify manifestAdditions element so that it contains the following activity:

        <manifest android:installLocation="auto">


                <!-- GooglePlayServices Base -->
                <activity android:name=""



Finally, add the FirebaseAuth ANE or SWC package from the bin directory to your project so that your IDE can work with it. The additional Android library ANEs are only necessary during packaging.

API overview


Initialize the extension by calling the init method inside your document class' constructor, or as early as possible after your app's launch and after FirebaseCore.configure() is called:

if( FirebaseAuth.init( onFirebaseAuthInitialState ) ) {
    // successfully initialized

The first parameter is Function that will be called when the underlying SDK is initialized and information about currently logged in user becomes available:

private function onFirebaseAuthInitialState( user:FirebaseUser ):void {
    if( user == null ) {
    	// no user is currently logged in
	} else {
		// user is already logged in
		trace( );

You may also pass in second parameter of type Boolean to enable or disable extension logs.

Create new user

To create new user with email and password, use the FirebaseAuth.createUser method:

FirebaseAuth.createUser( "**email**", "**password**", onFirebaseAuthCreateUser );

private function onFirebaseAuthCreateUser( user:FirebaseUser, errorMessage:String ):void {
    if( errorMessage == null ) {
        // user has been created
        trace( );
    } else {
        // error creating the user

Signing in

To sign a user in, use any of the FirebaseAuth.signIn* methods:

/* Sign in anonymously */
FirebaseAuth.signInAnonymously( onFirebaseAuthSignIn );

/* Sign in using Facebook access token */
var credential:IAuthCredential = FacebookAuthProvider.getCredential( "**access_token**" );
FirebaseAuth.signInWithCredential( credential, onFirebaseAuthSignIn );

/* Sign in using Twitter access token and secret */
var credential:IAuthCredential = TwitterAuthProvider.getCredential( "**access_token**", "**secret**" );
FirebaseAuth.signInWithCredential( credential, onFirebaseAuthSignIn );

/* Sign in using Google access id token and access token */
var credential:IAuthCredential = GoogleAuthProvider.getCredential( "**id_token**", "**access_token**" );
FirebaseAuth.signInWithCredential( credential, onFirebaseAuthSignIn );

/* Sign in using Github access token */
var credential:IAuthCredential = GithubAuthProvider.getCredential( "**access_token**" );
FirebaseAuth.signInWithCredential( credential, onFirebaseAuthSignIn );

/* Sign in using email and password */
var credential:IAuthCredential = EmailAuthProvider.getCredential( "**email**", "**password**" );
FirebaseAuth.signInWithCredential( credential, onFirebaseAuthSignIn );

Each method accepts Function parameter as a callback:

private function onFirebaseAuthSignIn( user:FirebaseUser, errorMessage:String ):void {
    if( errorMessage == null ) {
        // user has been signed in
        trace( );
    } else {
        // error signing the user in

Link/unlink providers

Once the user is signed in, his profile can be retrieved using FirebaseAuth.currentUser and his account can be linked with another provider. Simply obtain credential for the provider (as seen above) and call FirebaseAuth.currentUser.linkWithCredential:

FirebaseAuth.currentUser.linkWithCredential( credential, onFirebaseAuthUserLinked );

private function onFirebaseAuthUserLinked( user:FirebaseUser, errorMessage:String ):void {
    if( errorMessage == null ) {
        // user has been linked with the credential
        // process user.providerData to read provider-specific information
    } else {
        // there was an error linking the user with the credential

To unlink from provider, just pass in one of the provider identifiers defined in FirebaseAuthProviders class, for example:

FirebaseAuth.currentUser.unlinkFromProvider( FirebaseAuthProviders.FACEBOOK, onFirebaseAuthUserUnlinked );

private function onFirebaseAuthUserUnlinked( user:FirebaseUser, errorMessage:String ):void {
    if( errorMessage == null ) {
        // user has been unlinked from the provider
    } else {
        // there was an error unlinking the user from the provider


See the documentation for FirebaseUser object to learn about other operations on the user, such as updating email, password or reading provider-specific information.


  • iOS 7+
  • Android 4+
  • Adobe AIR 20+


Generated ActionScript documentation is available in the docs directory, or can be generated by running ant asdoc from the build directory.

Build ANE

ANT build scripts are available in the build directory. Edit to correspond with your local setup.


The ANE has been written by Marcel Piestansky and is distributed under Apache License, version 2.0.


September 2, 2016 (v1.0.0)

  • Public release