How do I redirect the user to a view once they've logged in and attempted to go back to the login screen ASP NET CORE

Question

I have my auth controller which on successful login redirects the user to my dashboard controller with the user.identity properties populated, so I can use User.IsAuthenticated and User.IsInRole("Admin")

My question is.

Once the user is logged in and are on the dashboard page. How can I redirect them back to the dashboard page if they're already logged in.

Thanks in advance.

Answer 1

So my solution was to simply check if the user was already authenticated in my [HttpGet] login controller as opposed to my [HttpPost] login controller.

[HttpGet]
public ActionResult Login()
{
    if (User.Identity.IsAuthenticated)
        return RedirectToAction("Index", "Dashboard");

    return View();
}

[HttpPost]
public async Task<IActionResult> Login(LoginViewModel req)
{

    return View(req);
}