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Amazon Device Messaging

This reference article covers the Amazon Android push notification integration for the Unity platform.

A push notification is an out-of-app alert that appears on the user’s screen when an important update occurs. Push notifications are a valuable way to provide your users with time-sensitive and relevant content or to re-engage them with your app.

ADM (Amazon Device Messaging) is not supported on non-Amazon devices. To test Kindle push, you must have a FireOS device. Check out the help section for additional best practices.

Braze sends push notifications to Amazon devices using Amazon Device Messaging (ADM).

Step 1: Enable ADM

  1. Create an account with the Amazon Apps & Games Developer Portal if you have not already done so.
  2. Obtain OAuth credentials (Client ID and Client Secret) and an ADM API key.
  3. Enable Automatic ADM Registration Enabled in the Unity Braze Configuration window.
    • Alternatively, you may add the following line to your res/values/braze.xml file to enable ADM registration:
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  <bool name="com_braze_push_adm_messaging_registration_enabled">true</bool>

Step 2: Update Unity AndroidManifest.xml

If your app does not have an AndroidManifest.xml, you can use the following as a template. Otherwise, if you already have an AndroidManifest.xml, ensure that any of the following missing sections are added to your existing AndroidManifest.xml.

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<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
          package="REPLACE_WITH_YOUR_PACKAGE_NAME">

  <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
  <uses-permission android:name="android.permission.INTERNET" />
  <permission
    android:name="REPLACE_WITH_YOUR_PACKAGE_NAME.permission.RECEIVE_ADM_MESSAGE"
    android:protectionLevel="signature" />
  <uses-permission android:name="REPLACE_WITH_YOUR_PACKAGE_NAME.permission.RECEIVE_ADM_MESSAGE" />
  <uses-permission android:name="com.amazon.device.messaging.permission.RECEIVE" />

  <application android:icon="@drawable/app_icon" 
               android:label="@string/app_name">

    <!-- Calls the necessary Braze methods to ensure that analytics are collected and that push notifications are properly forwarded to the Unity application. -->
    <activity android:name="com.braze.unity.BrazeUnityPlayerActivity" 
      android:label="@string/app_name" 
      android:configChanges="fontScale|keyboard|keyboardHidden|locale|mnc|mcc|navigation|orientation|screenLayout|screenSize|smallestScreenSize|uiMode|touchscreen" 
      android:screenOrientation="sensor">
      <meta-data android:name="android.app.lib_name" android:value="unity" />
      <meta-data android:name="unityplayer.ForwardNativeEventsToDalvik" android:value="true" />
      <intent-filter>
        <action android:name="android.intent.action.MAIN" />
        <category android:name="android.intent.category.LAUNCHER" />
      </intent-filter>
    </activity>

    <receiver android:name="com.braze.push.BrazeAmazonDeviceMessagingReceiver" android:permission="com.amazon.device.messaging.permission.SEND">
      <intent-filter>
          <action android:name="com.amazon.device.messaging.intent.RECEIVE" />
          <action android:name="com.amazon.device.messaging.intent.REGISTRATION" />
          <category android:name="REPLACE_WITH_YOUR_PACKAGE_NAME" />
      </intent-filter>
    </receiver>
  </application>
</manifest>

Step 3: Store your ADM API key

First, obtain an ADM API Key for your app. Next, save your ADM API key to a file named api_key.txt and save it in your project’s Assets/ folder.

Amazon will not recognize your key if api_key.txt contains any white space characters, such as a trailing line break.

In your mainTemplate.gradle file, add the following:

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task copyAmazon(type: Copy) {
    def unityProjectPath = $/file:///**DIR_UNITYPROJECT**/$.replace("\\", "/")
    from unityProjectPath + '/Assets/api_key.txt'
    into new File(projectDir, 'src/main/assets')
}

preBuild.dependsOn(copyAmazon)

Step 4: Add ADM Jar

The required ADM Jar file may be placed anywhere in your project according to the Unity JAR documentation.

Step 5: Add Client Secret and Client ID to your Braze dashboard

Lastly, you must add the Client Secret and Client ID you obtained in Step 1 to the Braze dashboard’s Manage Settings page.

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