Dart Rate Limiter

ratelimiter_demo.dart

class RateLimiter {
  late int waitTimeMilliseconds = 2500;
  DateTime lastActionTime = DateTime.now();

  Future<Function> doAction(Function f) async {
    while (true) {
      if (DateTime.now().isAfter(lastActionTime.add(Duration(milliseconds: waitTimeMilliseconds)))) {
        break;
      } else {
        await Future.delayed(const Duration(milliseconds: 100));
      }
    }
    lastActionTime = DateTime.now();
    return f;
  }
}


void printName(String name) {
  print("Hello, $name");
}


void main() async {
  RateLimiter rateLimiter = RateLimiter();
  print("1");
  (rateLimiter.doAction(() => printName("Jeremy"))).then((f) => f());
  //(await rateLimiter.doAction(() => printName("Jeremy")))();
  print("2");
  //(await rateLimiter.doAction(() => printName("Frank")))();
  (rateLimiter.doAction(() => printName("Frank"))).then((f) => f());
  print("3");
  //(await rateLimiter.doAction(() => printName("Bill")))();
  (rateLimiter.doAction(() => printName("Bill"))).then((f) => f());
}