allprojects {
          repositories {
              ...
              maven { url 'https://jitpack.io' }
          }
      }

  Future<void> initPlatformState() async {
      Map<String, dynamic> paymentRequestParams = {
      //Required Params
      "orderReference": "xxxx",
      "customerName": "xxxx",
      "customerEmail": "xxxx",
      "customerMobile": "xxxxxxxxxx",
      "address": "xxxx",
      "postalCode": "600032",
      "city": "xxxx",
      "region": "xxxx",
      "country": "xxxx",
      //Optional Params
      "deliveryAddress": "xxxx",
      "deliveryCustomerName": "xxxx",
      "deliveryCustomerMobile": "xxxxxxxxxx",
      "deliveryPostalCode": "xxxx",
      "deliveryCity": "xxxx",
      "deliveryRegion": "xxxx",
      "deliveryCountry": "xxxx",
    };

    try {
      var response = Basispaysdkv2.startTransaction(paymentRequestParams);
      response.then((value) {
        print(value);
      }).catchError((onError) {
        if (onError is PlatformException) {
          setState(() {
            print(onError.message + " \n  " + onError.details.toString());
          });
        } else {
          setState(() {
            print(onError.toString());
          });
        }
      });
    } catch (err) {
      print(err.toString());
    }
    }