Register cookie auth in startup

Startup.cs

 ///
 services.AddAuthentication(options =>
                {
                    options.DefaultAuthenticateScheme = CookieAuthenticationDefaults.AuthenticationScheme;
                    options.DefaultSignInScheme = CookieAuthenticationDefaults.AuthenticationScheme;
                    options.DefaultChallengeScheme = CookieAuthenticationDefaults.AuthenticationScheme;
                })
                .AddCookie();

            services.ConfigureApplicationCookie(options =>
            {
                // Cookie settings
                options.Cookie.HttpOnly = true;
                options.ExpireTimeSpan = TimeSpan.FromMinutes(5);
                options.LoginPath = "/Account/Login";
                options.AccessDeniedPath = "/Account/AccessDenied";
                options.SlidingExpiration = true; // refresh auth cookie if existing is on half of lifetime
            });
        }
        
////////

app.UseAuthentication();