working with memory cache asp.net core code example
Example: web api startup add imemory cache object
#region cached data
private IMemoryCache _cache;
public HomeController(IMemoryCache memoryCache)
{
_cache = memoryCache;
}
public static class CacheKeys
{
public static string Entry { get { return "_Entry"; } }
public static string CallbackEntry { get { return "_Callback"; } }
public static string CallbackMessage { get { return "_CallbackMessage"; } }
public static string Parent { get { return "_Parent"; } }
public static string Child { get { return "_Child"; } }
public static string DependentMessage { get { return "_DependentMessage"; } }
public static string DependentCTS { get { return "_DependentCTS"; } }
public static string Ticks { get { return "_Ticks"; } }
public static string CancelMsg { get { return "_CancelMsg"; } }
public static string CancelTokenSource { get { return "_CancelTokenSource"; } }
}
public IActionResult CacheTryGetValueSet()
{
DateTime cacheEntry;
if (!_cache.TryGetValue(CacheKeys.Entry, out cacheEntry))
{
cacheEntry = DateTime.Now;
var cacheEntryOptions = new MemoryCacheEntryOptions()
.SetSlidingExpiration(TimeSpan.FromSeconds(3));
_cache.Set(CacheKeys.Entry, cacheEntry, cacheEntryOptions);
}
return View("Cache", cacheEntry);
}
#endregion