public HomeController()
        {
            var       RedisManager = ConnectionMultiplexer.Connect(RedisConnectionManger.GetRedisConnectionString());
            IDatabase Redis        = RedisManager.GetDatabase();

            string CachedValue = Redis.StringGet("Emps");

            if (CachedValue == null)
            {
                _Emps = GetData();
                Redis.StringSet("Emps", JsonConvert.SerializeObject(_Emps), TimeSpan.FromMinutes(4));
            }
            else
            {
                _Emps = JsonConvert.DeserializeObject <List <Employee> >(CachedValue);
            }
        }
        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.Configure <CookiePolicyOptions>(options =>
            {
                // This lambda determines whether user consent for non-essential cookies is needed for a given request.
                options.CheckConsentNeeded    = context => true;
                options.MinimumSameSitePolicy = SameSiteMode.None;
            });

            services.AddDistributedRedisCache(opts =>
            {
                opts.Configuration = RedisConnectionManger.GetRedisConnectionString();
                opts.InstanceName  = "master";
            });

            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);
        }