using System;

using Microsoft.Extensions.Caching.Memory;

​

class MainClass

{

    public static void Main(string[] args)

    {

        //Console.WriteLine ("Hello World");

        MemoryCache cache = new MemoryCache(new MemoryCacheOptions()

        {ExpirationScanFrequency = new TimeSpan(0, 1, 0)});

        MemoryCacheEntryOptions options = new MemoryCacheEntryOptions()

        {AbsoluteExpiration = DateTime.Now.AddSeconds(4), //SlidingExpiration = slidingExpiration,

        Priority = CacheItemPriority.Normal};

        cache.Set("greetings", "hello", options);

        Console.WriteLine(cache.Get("greetings"));

        //System.Threading.Thread.Sleep(2000);

        Console.WriteLine(cache.Get("greetings"));

        Console.WriteLine("----------End----------");

        Console.WriteLine("Check sliding expiry");

        MemoryCacheEntryOptions sliding_options = new MemoryCacheEntryOptions()

        {SlidingExpiration = TimeSpan.FromSeconds(4),

        Priority = CacheItemPriority.Normal};

        cache.Set("foo", "bar", sliding_options);

        Console.WriteLine(cache.Get("foo"));

        System.Threading.Thread.Sleep(3000);

        Console.WriteLine(cache.Get("foo"));

        System.Threading.Thread.Sleep(3000);

        Console.WriteLine(cache.Get("foo"));

        Console.WriteLine("----------End----------");

    }

}