public async Task Invoke(HttpContext context)
{
await _next(context); // Pass the control to the next middleware
IList <string> news;
if (!_cache.TryGetValue <IList <string> >("latestNews", out news))
{
news = _newsServices.GetLatestNews();
var options = new MemoryCacheEntryOptions()
{
SlidingExpiration = TimeSpan.FromMinutes(5),
AbsoluteExpiration = DateTimeOffset.UtcNow.AddHours(1)
};
// The entry can be removed, is not priority
options.Priority = CacheItemPriority.Low;
// Never removed the entry automatically
// We do this manually
options.Priority = CacheItemPriority.NeverRemove;
_cache.Set("latestNews", news, options);
// To invalidate an entry
_cache.Remove("latestNews");
}
await context.Response.WriteAsync($"\nNumber of News: {news.Count}");
}
public HomeEntity Get()
{
HomeEntity entity = new HomeEntity();
entity.News = newsServices.GetLatestNews();
entity.Events = eventServices.GetAllEvents();
entity.Departments = deptServices.GetAllDepartments();
return(entity);
}
public IEnumerable <NewsEntity> GetLatestNews()
{
return(newsServices.GetLatestNews());
}