Buffer - Droidcon 2016, buffer analytics events to optimize network traffic

Buffer.java

//buffer analytics events to optimize network traffic
  public Observable<TrackRequest> bufferundum() {
      return getUserEventsObservable()
              .buffer(3) //buffer count
              .flatMap(new Func1<List<Event>, Observable<TrackRequest>>() {
                  @Override
                  public Observable<TrackRequest> call(final List<Event> events) {
                      return Observable.just(new TrackRequest(events));
                  }
            });
  }