sendTransaction method
Sends a transaction for fraud detection.
transactionID
: The unique identifier for the transaction.userID
: The unique identifier for the user initiating the transaction.extraData
: A map containing additional data associated with the transaction.
Returns a String
indicating the result of the transaction submission.
Implementation
Future<String?> sendTransaction(
String transactionID, String userID, Map<String, Object> extraData) {
throw UnimplementedError('sendTransaction() has not been implemented.');
}