public void Configure(IApplicationBuilder app, IWebHostEnvironment env, ApplicationDbContext context, RoleManager <EmployeeRole> roleManager, UserManager <Employee> userManager) { if (env.IsDevelopment()) { app.UseDeveloperExceptionPage(); app.UseDatabaseErrorPage(); } else { app.UseExceptionHandler("/Home/Error"); app.UseHsts(); } app.UseHttpsRedirection(); app.UseStaticFiles(); app.UseRouting(); app.UseAuthentication(); app.UseAuthorization(); app.UseEndpoints(endpoints => { endpoints.MapControllerRoute( name: "default", pattern: "{controller=Home}/{action=Index}/{id?}"); endpoints.MapRazorPages(); }); DemoData.Initialize(context, userManager, roleManager).Wait(); }