build method

Implementation

@override
Future<Task> build(Task arg) async {
  // Load initial todo list from the remote repository
  final task = arg;
  _listener = task.subscribeStream(); // keep it resident in memory
  _poller = _listener.listen(
    (data) async {
      _log.info('got tasks list update');
      state = await AsyncValue.guard(() async => await task.refresh());
    },
    onError: (e, s) {
      _log.severe('task stream errored', e, s);
    },
    onDone: () {
      _log.info('task stream ended');
    },
  );
  ref.onDispose(() => _poller.cancel());
  return task;
}