public async Task <ActionResult <IEnumerable <Topic> > > GetFreshTopics([FromQuery] string date, int page = 1)
        {
            DateTime dateTime;

            dateTime = DateTime.TryParse(date, out dateTime) ? dateTime : DateTime.Now;
            //date = date == null ? DateTime.Now : date;
            return(await _context.GetFreshTopics(page, dateTime));
        }