public async Task <IActionResult> GetAll([FromQuery] Filters filters)
        {
            var cacheKey = new FiltersCacheKey(filters);

            var newsItems = Cache.Get <IEnumerable <NewsFeedItem> >(cacheKey);

            if (newsItems == null)
            {
                newsItems = await _newsFeedService.Get(null, filters);

                Cache.Set(cacheKey, newsItems, new CancellationChangeToken(_cancellationTokenSource.Token));
            }

            return(Ok(newsItems));
        }
 protected bool Equals(FiltersCacheKey other)
 {
     return(Equals(Body, other.Body) && Equals(AuthorNames, other.AuthorNames) && Equals(Title, other.Title));
 }