purchase method
Implementation
Future<void> purchase(String arg_sku) async {
final BasicMessageChannel<Object?> channel = BasicMessageChannel<Object?>(
'dev.flutter.pigeon.amazon_iap.AmazonIapApi.purchase', codec,
binaryMessenger: _binaryMessenger);
final List<Object?>? replyList =
await channel.send(<Object?>[arg_sku]) as List<Object?>?;
if (replyList == null) {
throw PlatformException(
code: 'channel-error',
message: 'Unable to establish connection on channel.',
);
} else if (replyList.length > 1) {
throw PlatformException(
code: replyList[0]! as String,
message: replyList[1] as String?,
details: replyList[2],
);
} else {
return;
}
}