Restoring purchases

You can use getAvailablePurchases() to do what's commonly understood as “restoring” purchases.

If for debugging you want to consume all items, you have to iterate over the purchases returned by getAvailablePurchases(). Beware that if you consume an item without having recorded the purchase in your database the user may have paid for something without getting it delivered and you will have no way to recover the receipt to validate and restore their purchase.

  getPurchases = async () => {
    try {
      const purchases = await RNIap.getAvailablePurchases();
      const newState = { premium: false, ads: true }
      let restoredTitles = [];

      purchases.forEach(purchase => {
        switch (purchase.productId) {
        case 'com.example.premium':
          newState.premium = true
          restoredTitles.push('Premium Version');
          break

        case 'com.example.no_ads':
          newState.ads = false
          restoredTitles.push('No Ads');
          break

        case 'com.example.coins100':
          await RNIap.consumePurchaseAndroid(purchase.purchaseToken);
          CoinStore.addCoins(100);
        }
      })

      Alert.alert('Restore Successful', 'You successfully restored the following purchases: ' + restoredTitles.join(', '));
    } catch(err) {
      console.warn(err); // standardized err.code and err.message available
      Alert.alert(err.message);
    }
  }

Each item from getAvailablePurchases() contains a AvailablePurchase object.