createSign static method

Future<String> createSign({ required String payeeUpiId, required String payeeName, required double amount, String? transactionId, String? transactionNote, String? merchantCode, String? link, required String secretKey, })

Generates a signed transaction string in Base64 format.

Implementation

static Future<String> createSign({
  required String payeeUpiId,
  required String payeeName,
  required double amount,
  String? transactionId,
  String? transactionNote,
  String? merchantCode,
  String? link,
  required String secretKey,
}) async {
  try {
    return await _channel.invokeMethod<String>('createSign', {
          'payeeUpiId': payeeUpiId,
          'payeeName': payeeName,
          'amount': amount.toStringAsFixed(2), // Ensures proper decimal format
          if (transactionId != null) 'transactionId': transactionId,
          if (transactionNote != null) 'transactionNote': transactionNote,
          if (merchantCode != null) 'merchantCode': merchantCode,
          if (link != null) 'link': link,
          'secretKey': secretKey,
        }) ??
        '';
  } on PlatformException catch (e) {
    debugPrint("Error generating signature: ${e.message}");
    return '';
  }
}