Why session getting expired when using the application in .NET core 6 MVC

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Hi,

I am working on .Net Core 6(MVC) web application, i set the idle timeout for 2 minutes, when i am moving from one page to another page then the session is working correctly, but when i am staying on any particular page and i am moving the cursor on page or filling the form then the session getting expired in 2 minutes, please see the below code what i am doing wrong and how to fix it.

Thanks

What I have tried:

program.cs code:

builder.Services.AddSession(options =>
{
    options.IdleTimeout = TimeSpan.FromMinutes(2);
    options.Cookie.HttpOnly = true;
    options.Cookie.IsEssential = true;
   
});

Login code:

await _signInManager.SignInAsync(
user,
new AuthenticationProperties
{
    ExpiresUtc = DateTime.UtcNow.AddMinutes(2),
    AllowRefresh = true,
    IsPersistent = true
});

Posted 15-Apr-24 7:13am

sysproteam123@gmail.com

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Dave Kreskowiak · Accepted Answer · 2024-04-15T08:03:00

Quote:
i set the idle timeout for 2 minutes, ... then the session getting expired in 2 minutes

It's doing exactly what you told it to do! You said expire the session in 2 minutes, so the session is expiring in 2 minutes. What did you think was going on?

From your own code:

C#

builder.Services.AddSession(options =>
{
    options.IdleTimeout = TimeSpan.FromMinutes(2);        <---- Here's your 2 minute timeout.
    options.Cookie.HttpOnly = true;
    options.Cookie.IsEssential = true;
   
});

If the user doesn't request a new page inside of 2 minutes, the session times out.

OriginalGriff · Accepted Answer · 2024-04-15T19:26:00

To add to what Dave has said, the session is a Server side construct, not Client - so it's expiration is unrelated to user input unless that input directly causes the Client browser to send (or request) information from the server.
Just moving about a form or filling in details in form controls does not do that, it is entirely local to the Client computer.

Why session getting expired when using the application in .NET core 6 MVC

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