public void ConfigureServices(IServiceCollection services)
    {
        try
        {
            //services.AddAuthentication(CookieAuthenticationDefaults.AuthenticationScheme)
            services.AddAuthentication("CookieSecurityScheme")
                .AddCookie("CookieSecurityScheme", options =>
                {
                    options.ExpireTimeSpan = new TimeSpan(90, 0, 0, 0);
                    options.LoginPath = new PathString("/Home/Index/");
                    options.AccessDeniedPath = new PathString("/Home/Index/");
                    options.LogoutPath = new PathString("/Home/Index/");
                });

            services.AddMvc();
            services.AddAntiforgery();
            services.Configure<MvcOptions>(options =>
            {
                options.Filters.Add(new RequireHttpsAttribute());
            });
        }
        catch (Exception ex)
        {
            gFunc.ProcessError(ex);
        }
    }

    public void Configure(IApplicationBuilder app, IHostingEnvironment env)
    {
        try
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
                app.UseBrowserLink();
            }
            else
            {
                app.UseExceptionHandler("/Home/Error");
            }
            app.UseStaticFiles();
            app.UseAuthentication();

            var options = new RewriteOptions().AddRedirectToHttps();
            app.UseRewriter(options);

            app.UseMvc(routes =>
            {
                routes.MapRoute(
                    name: "default",
                    template: "{controller=Home}/{action=Index}/{id?}");

                routes.MapRoute(
                    name: "signin",
                    template: "{controller=Home}/{action=Index}/{agencyID}/{contactID}");
            });
        }
        catch (Exception ex)
        {
            gFunc.ProcessError(ex);
        }
    }

// create claims
        var claims = new List<Claim>
        {
            new Claim(ClaimTypes.Name, c_signed_in.FirstName + gFunc.SPACE + c_signed_in.FamilyName),
            new Claim(ClaimTypes.Email, c_signed_in.Email),
            new Claim(ClaimTypes.SerialNumber, c_signed_in.AccountPassword)
            //new Claim(ClaimTypes.Email, c_signed_in.Email)
        };

        // create principal
        ClaimsPrincipal principal = new ClaimsPrincipal(new ClaimsIdentity(claims, CookieAuthenticationDefaults.AuthenticationScheme));

        // sign-in
        await HttpContext.SignInAsync(scheme: "CookieSecurityScheme", principal: principal);