Migrate from Google Play Billing to Appstore SDK

Use this guide to migrate your app from Google Play Billing to the Appstore SDK In-App Purchasing (IAP) API. To review other porting solutions, see Migrate from Google Play Billing.

Migrate to the Appstore SDK
Step 1. Download and configure Appstore SDK
Step 2. Configure your AndroidManifest.xml file
Step 3. Implement logic to mediate between Google Play Billing and IAP
Step 4. Add and implement the Appstore SDK IAP API
Step 5. Test your app

Migrate to the Appstore SDK

To migrate from Google Play Billing to the Appstore SDK, follow these instructions.

Download and configure the Appstore SDK.
Configure your AndroidManifest.xml file to support Appstore SDK IAP.
In your app, implement logic to mediate between Google Play Billing and IAP.
Add and implement the Appstore SDK IAP API.
Test your app.

The following sections guide you through these steps.

Step 1. Download and configure Appstore SDK

Download the Appstore SDK here:

To configure the Appstore SDK for your app, follow the instructions in Integrate the Appstore SDK.

Step 2. Configure your AndroidManifest.xml file

Configure your AndroidManifest.xml file to define the IAP ResponseReceiver for your app. The IAP ResponseReceiver ensures that the intent communication from the Amazon Client is intercepted by your app. If you are supporting both Google Play Billing and Amazon IAP, you don't need to remove elements related to Google Play Billing; they will simply be ignored by IAP.

In your AndroidManifest.xml file, add the appropriate <receiver> tag for the IAP ResponseReceiver. If your app targets Android 12 or higher, you must explicitly set android:exported to true in the MainActivity and ResponseReceiver as shown in the following example.

 <application>
 ...
    <activity android:name="com.amazon.sample.iap.entitlement.MainActivity"
              android:label="@string/app_name" android:exported="true" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

    <receiver android:name="com.amazon.device.iap.ResponseReceiver" android:exported="true"
              android:permission="com.amazon.inapp.purchasing.Permission.NOTIFY" >
        <intent-filter>
        <action
            android:name="com.amazon.inapp.purchasing.NOTIFY" />
        </intent-filter>
    </receiver>
 </application>

Step 3. Implement logic to mediate between Google Play Billing and IAP

You can use the same code base for your app, regardless of where your app is hosted. Just add logic to your app to determine whether the app was downloaded from the Amazon Appstore or from Google Play. Depending on where the user downloaded the app, run the appropriate methods for either IAP or Google Play Billing.

The following example code determines whether a package was installed from Google Play or the Amazon Appstore:

PackageManager pkgManager = context.getPackageManager();

try {
   String installerPackageName = pkgManager.getInstallSourceInfo(context.getPackageName()).getInstallingPackageName();
} catch (PackageManager.NameNotFoundException e) {
   // Handle exception
}

if (installerPackageName.startsWith("com.amazon")) {
   // Amazon
} else if ("com.android.vending".equals(installerPackageName)) {
   // Google Play
}

Step 4. Add and implement the Appstore SDK IAP API

For the most part, Appstore SDK IAP works similarly to Google Play Billing. When you create the path in your code to implement the IAP API, you should be able to use a similar logic flow to Google Play, but will need to account for different class and method names.

The following table maps the most frequently used IAP methods to their Google Play equivalents:

PurchasingService method	PurchasingListener callback	Response object	Google Play Equivalent
`getUserData()`	`onUserDataResponse()`	`UserDataResponse`	N/A
`getPurchaseUpdates()`	`onPurchaseUpdatesResponse()`	`PurchaseUpdatesResponse`	`queryPurchases()`
`getProductData()`	`onProductDataResponse()`	`ProductDataResponse`	`getSkuDetails()`
`purchase()`	`onPurchaseResponse()`	`PurchaseResponse`	`launchBillingFlow()`
`notifyFulfillment()`	N/A	N/A	`consumeAsync()`

Step 5. Test your app

Download and install the App Tester tool to test your Appstore SDK-integrated app. Follow the instructions and links in Testing In-App Purchasing (IAP) to install and use App Tester.

After testing your app locally, you can use the Live App Testing service to beta test your app in a live production environment with a select group of users.

Last updated: May 22, 2024