HomeControllerIndex.cs

public async Task<IActionResult> Index([FromServices] MusicStoreContext dbContext, [FromServices] IMemoryCache cache)
{
    var cacheKey = "topselling";
    List<Album> albums;
    if (!cache.TryGetValue(cacheKey, out albums))
    {
        albums = await GetTopSellingAlbumsAsync(dbContext, 6);
        if (albums != null && albums.Count > 0)
        {
            if (_appSettings.CacheDbResults)
            {
                cache.Set(cacheKey, albums,
                    new MemoryCacheEntryOptions()
                    .SetAbsoluteExpiration(TimeSpan.FromMinutes(10))
                    .SetPriority(CacheItemPriority.High));
            }
        }
    }
    return View(albums);
}