# getIssuingAgencyCode method

String? getIssuingAgencyCode()

Gets the the Issuing Agency Code (IAC). For ISO 22376:2023 format only.

return The Issuing Agency Code (IAC). For ISO 22376:2023 format only. throws BiosealException An error has occurred during Bioseal Library execution.

## Implementation

    String? getIssuingAgencyCode() {
      Pointer<Char> pIssuingAgencyCode = nullptr;
      Pointer<Int> pIssuingAgencyCodeSize = calloc.allocate(1);
      pIssuingAgencyCodeSize[0] = -1;
      try {
        var err = biosealSDK.id3Bioseal_GetIssuingAgencyCode(_pHandle.value, pIssuingAgencyCode, pIssuingAgencyCodeSize);
        if (err == BiosealError.objectDoesNotExist.value) {
          return null;
        }
        if (err == BiosealError.insufficientBuffer.value) {
          pIssuingAgencyCode = calloc.allocate(pIssuingAgencyCodeSize.value);
          err = biosealSDK.id3Bioseal_GetIssuingAgencyCode(_pHandle.value, pIssuingAgencyCode, pIssuingAgencyCodeSize);
          if (err != BiosealError.success.value) {
            throw BiosealException(err);
          }
        }
        final vIssuingAgencyCode = utf8.decode(Uint8List.fromList(pIssuingAgencyCode.cast<Uint8>().asTypedList(pIssuingAgencyCodeSize.value)));
        return vIssuingAgencyCode;
      } finally {
        calloc.free(pIssuingAgencyCode);
        calloc.free(pIssuingAgencyCodeSize);
      }
    }