IsPersistent not working PasswordSignInAsync Identity asp.net core

Question

I use dotnet core 5 and Identity for authorization in my website. I have a custom class User for my Identity.

This is my ConfigureServices:

 services.AddDbContext<ApplicationDbContext>(options =>
                options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection"), o => o.UseQuerySplittingBehavior(QuerySplittingBehavior.SplitQuery)));
            services.AddDefaultIdentity<User>(e =>
                {
                    e.Password.RequireDigit = false;
                    e.Password.RequireLowercase = false;
                    e.Password.RequireNonAlphanumeric = false;
                    e.Password.RequireUppercase = false;
                    e.Password.RequireLowercase = false;
                    e.Password.RequiredUniqueChars = 2;
                    e.Password.RequiredLength = 5;
                    e.SignIn.RequireConfirmedPhoneNumber = false;
                    e.SignIn.RequireConfirmedEmail = false;
                }).AddRoles<IdentityRole>().AddRoleManager<RoleManager<IdentityRole>>()
                .AddDefaultTokenProviders().AddEntityFrameworkStores<ApplicationDbContext>();
            services.AddControllersWithViews();

and in my Configure I have:

app.UseAuthentication();
app.UseAuthorization();

This is my SignIn Controller:

[ValidateAntiForgeryToken]
        [HttpPost("/Login")]
        public async Task<IActionResult> Login(LoginViewModel model)
        {
            if (ModelState.IsValid)
            {
                var result =
                    await _signInManager.PasswordSignInAsync(model.UserName, model.Password, model.RememberMe, true);
                if (result.Succeeded)
                {
                    return Redirect(model.ReturnUrl);
                }
                else
                {
                    ModelState.AddModelError("", "Invalid Usename or password");
                    return View();
                }
            }
            else
            {
                return View();
            }
        }

But Even if Model.RememberMe is true, the SignIn is not persistent and User Needs to signin every 20 minutes. How can I solve this problem?

in addition to the answer below, please check if your data protection keys are the same, this is especially important if the application is hosted on multiple instances. (running inside docker containers for example), i had a problem with this a while ago and it took me some time to figure this out — Isparia, May 04 '21 at 07:48

score 0 · Answer 1 · answered May 04 '21 at 06:57

0

Try to set ExpireTimeSpan of cookie.Here is a sample to set expiretime to 1 day:

services.ConfigureApplicationCookie(options =>
{
    options.ExpireTimeSpan = TimeSpan.FromDays(1);
});

answered May 04 '21 at 06:57

Yiyi You

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I want to give user the choice to have a persistant session or not – AmirHossein Parsapour May 04 '21 at 18:19
You can refer to [this](https://stackoverflow.com/questions/43370722/persistent-session-in-asp-net-core) – Yiyi You May 05 '21 at 01:31
You mean I shouldn't use cookies for authentication? – AmirHossein Parsapour May 05 '21 at 03:37
There isn't something like IsPersistent for cookie.So you can set ExpireTimeSpan to a very long time if you want to use cookie authentication. – Yiyi You May 05 '21 at 07:02
1

Then what is the point of IsPersistent in Identity? – AmirHossein Parsapour May 05 '21 at 07:16

IsPersistent not working PasswordSignInAsync Identity asp.net core

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