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Amazon IAP

Amazon IAP

The guide assumes that react-native-iap is implemented in your app and works with the Play Store without issues. Here are the additional steps to configure Amazon IAP.

Add In-App Items for your app​

  1. Create "In-App Items" using Amazon Developer portal for your app. Amazon put up detailed instructions at https://developer.amazon.com/docs/in-app-purchasing/iap-create-and-submit-iap-items.html

  2. Add this a call to RNIapActivityListener.registerActivity(this); inside your MainActivity's onCreate method. This is a necessary step only when using Amazon, but adding it will not affect negatively your Google Play Android builds. E.g.:


import com.dooboolab.rniap.RNIapActivityListener;
...
public class MainActivity extends ReactActivity {
    ...
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //Needed for Amazon IAP
        RNIapActivityListener.registerActivity(this);
    }
  1. Add new SKU strings to your Iap.getProducts or Iap.getSubscriptions calls.

App configuration​

  1. The current version of Amazon IAP SDK does not play well with R8 optimization. (https://developer.amazon.com/docs/in-app-purchasing/iap-obfuscate-the-code.html).

Add the code below in android/app/proguard-rules.pro:

+ -dontwarn com.amazon.**
+ -keep class com.amazon.** {*;}
+ -keepattributes *Annotation*

Testing in development​

To run the example app, with the amazon provider, run:

npm run android:amazon

Amazon offers the App Tester tool to make In-App purchases testing easier. More information can be found here.

Server Validation​

Amazon IAP API supports validation of In-App purchases on a remote server side. More information can be found here.

Subscriptions​

When fetching subscriptions from Amazon, make sure to use children SKUs (so SKUs for specific period ex. monthly or annually), do not use parent subscription SKUs!

Caveats​

Amazon does not return decimal price & currency. Only localized price as a string (ex. 11.22$), see this page.

The package will try its best to parse the string into decimal price. If the package cannot parse the price, it will be 0. Currency is detected based on users Amazon marketplace.