purchase method

Future<String?> purchase(
  1. String userId,
  2. String orderId,
  3. String paymentToken,
  4. String expDate,
  5. String paymentAmount,
  6. String dbRefNo,
  7. String description,
)

Implementation

Future<String?> purchase(
    String userId,
    String orderId,
    String paymentToken,
    String expDate,
    String paymentAmount,
    String dbRefNo,
    String description) {
  throw UnimplementedError('purchase() has not been implemented.');
}