OutputCacheTagHelper.cs

namespace Discovering.Sitecore10.Caching
{
    public class OutputCacheOptions
    {
        public bool Enabled { get; set; }
    }
    
    [HtmlTargetElement("sitecore-output-cache")]
    public class OutputCacheTagHelper : CacheTagHelper
    {
        public OutputCacheTagHelper(
            CacheTagHelperMemoryCacheFactory factory,
            HtmlEncoder htmlEncoder,
            IHttpContextAccessor httpContextAccessor,
            IOptions<OutputCacheOptions> cachingOptions,
            IOutputCacheService outputCacheService)
            : base(factory, htmlEncoder)
        {
            ExpiresOn = DateTimeOffset.MaxValue;
            VaryBy = httpContextAccessor.HttpContext.Request.Path + "," + outputCacheService.GetLastCacheReload().ToString(CultureInfo .InvariantCulture);
            Enabled = cachingOptions.Value.Enabled;
        }
    }
}