private async Task <VkNewsFeedGetResponse> GetVkFeedAsync(IVkApi api, string accessToken, string startFrom, CancellationToken cancellationToken) { Thread.Sleep(200); // todo: move to config if (string.IsNullOrWhiteSpace(startFrom)) { return(await api.GetFeedFirstPage(accessToken, cancellationToken)); } else { return(await api.GetFeedNextPage(accessToken, startFrom, cancellationToken)); } }