How to save login state when close browser?

Question

when signed HttpContext.SignInAsync(claimsPrinciple);

when I close the browser the cookie is not valid and I need login again.

builder.Services.AddAuthentication("Cookie").AddCookie("Cookie", options =>
{
    options.Cookie.Name = "j.Cookie";
    options.LoginPath = "/Login";
    options.ExpireTimeSpan = TimeSpan.FromDays(7);
});

Answer 1

You are using the wrong SignInAsync() overload. Use the SignInAsync() method overload that lets you set the authentication properties. Please see the reference documentation and select the options that best fit your needs.

Use cookie authentication without ASP.NET Core Identity

var authProperties = new AuthenticationProperties
{
    ExpiresUtc = DateTimeOffset.UtcNow.AddMinutes(10),
    IsPersistent = true
};

await HttpContext.SignInAsync( 
    new ClaimsPrincipal(claimsIdentity), 
    authProperties);