startPhotoPayment method
Implementation
@override
Future<String?> startPhotoPayment(
PhotoPaymentConfiguration paymentConfiguration) {
JsonWriter jsonWriter = JsonWriter();
var dataToPass =
jsonWriter.photoPaymentConfigurationToJson(paymentConfiguration);
var sJson = jsonEncode(dataToPass);
return methodChannel.invokeMethod<String>(
'startPhotoPayment', {'paymentConfiguration': sJson});
}