C# ASP.NET核心-身份验证-请记住我没有坚持

当我编写asp.net核心身份验证时，它不需要“记住我”功能，这就是我实现身份验证的方式（30分钟的滑动过期）：

Startup.cs

var roleStore = new CustomRoleStore();
var userPrincipalFactory = new CustomUserPrincipalFactory();

services.AddSingleton<IRoleStore<ApplicationRole>>(roleStore);
services.AddSingleton<IUserClaimsPrincipalFactory<ApplicationUser>>(userPrincipalFactory);

services.AddIdentity<ApplicationUser, ApplicationRole>(options => {
    options.Cookies.ApplicationCookie.ExpireTimeSpan = 30;
    options.Cookies.ApplicationCookie.SlidingExpiration = true;
}).AddDefaultTokenProviders();

[HttpPost("Login")]
[AllowAnonymous]
public async Task<IActionResult> Login(UserLogin model)
{
    // If the model is valid, then attempt a login.
    if (ModelState.IsValid)
    {
        try
        {
            // Wait for the result for sign in.
            var result = await _signInManager.PasswordSignInAsync(model.Email, model.Password, model.RememberMe, lockoutOnFailure: false);

            // If the call was successful, then update the last sign in.
            if (result.Succeeded)
                return Json(new { success = true, errorcode = 0, result = true });
        }
        catch (Exception ex)
        {
             return Json(new { success = false, errorcode = 115 });            
        }
    }

    // Return bad request response.
    return BadRequest(new { success = false, errorcode = 111 });
}

public class CustomUserStore : IUserStore<ApplicationUser>, IUserPasswordStore<ApplicationUser>, IUserLoginStore<ApplicationUser>, IUserLockoutStore<ApplicationUser>,  IUserPhoneNumberStore<ApplicationUser>, IUserTwoFactorStore<ApplicationUser> 

public class CustomRoleStore : IRoleStore<ApplicationRole>

var roleStore=new CustomRoleStore（）；
var userPrincipalFactory=新的CustomUserPrincipalFactory（）；
服务.AddSingleton
app.UseCookieAuthentication(new CookieAuthenticationOptions
{
    AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
    LoginPath = new PathString("/Account/Login"),
    Provider = new CookieAuthenticationProvider
    {
        OnValidateIdentity = SecurityStampValidator.OnValidateIdentity<ApplicationUserManager, ApplicationUser>(
validateInterval: TimeSpan.FromMinutes(15),
regenerateIdentity: (manager, user) => user.GenerateUserIdentityAsync(manager)),
    },
    SlidingExpiration = false,
    ExpireTimeSpan = TimeSpan.FromMinutes(30)
});