initializeOnvif method
Implementation
Future<void> initializeOnvif() async {
final authFile = File(globalResults?['config-file']);
if (!authFile.existsSync()) {
throw UsageException('Authentication file not found', usage);
}
final auth = json.decode(authFile.readAsStringSync());
//configure device connection
_onvif = await Onvif.connect(
host: auth['host'],
username: auth['username'],
password: auth['password']);
}