Does LogoutPath do anything?

Question

I am writing a sample app. leveraging OWIN and UseCookieAuthentication. The latter accepts CookieAuthenticationOptions, which has a LogoutPath property. This property has the following associated note:

If the LogoutPath is provided the middleware then a request to that path will redirect based on the ReturnUrlParameter.

However, I cannot figure out whether this does anything or if it just represents some implicit contract your code will do something. For example, if I leverage AuthenticationManager.SignOut(), I would expect the logout-path endpoint would get called.

Answer 1

Thanks to Khalid Abuhakmeh for providing additional insight. However, my confusion ultimately is a result of assuming an implicit end-point is mapped when specifying the LogoutPath property. After adding the following, requesting /logout?ReturnUrl=/ works as-expected:

app.Map("/logout", logout =>
{
    logout.Run(context =>
    {
        context.Authentication.SignOut();

        return Task.FromResult(0);
    });
});

Without the explicit map, I get a 404.

As an additional side-note, I also wrongly assumed providing an AuthenticationProperties-instance to SignOut would allow me to specify the return-url (instead of having it as part of the request url). It appears this only applies to external cookie authentication.