buySku static method

Initiate a Google Play Billing or Apple StoreKit purchase using skuId from a NamiSKU. Used by the linked paywall use case only.

Implementation

static Future<NamiPurchaseCompleteResult> buySku(String skuId) async {
  Map<dynamic, dynamic> map = await channel.invokeMethod("buySku", skuId);
  return NamiPurchaseCompleteResult(
      (map['purchaseState'] as String)._toNamiPurchaseState(), map['error']);
}