getCurrentWindow method

@override FutureOr<RateLimitingWindow<Id>> getCurrentWindow(RequestContext req, ResponseContext res, DateTime currentTime)

Computes the current window in which the user is acting.

For example, if your API was limited to 1000 requests/hour, then you would return a window containing the current hour, and the number of requests the user has sent in the past hour.

Implementation

@override
FutureOr<RateLimitingWindow<Id>> getCurrentWindow(
    RequestContext req, ResponseContext res, DateTime currentTime) async {
  var id = await getId(req, res);
  try {
    var data = await service.read(id);
    return RateLimitingWindow.fromJson(data);
  } catch (e) {
    if (e is AngelHttpException) {
      if (e.statusCode == 404) {
      } else {
        rethrow;
      }
    } else {
      rethrow;
    }
  }

  var window = RateLimitingWindow(id, currentTime, 0);
  await updateCurrentWindow(req, res, window, currentTime);
  return window;
}