Check if cookies exist in ASPNET CORE

Question

I’m migrating from the Asp.net Webforms to the Core 2.2 and in the application, we stored information such as Id, and other parameters. In Asp.Net Core I use Seguinte Iactionresult to record the cookie:

public IActionResult GravaCookie(string setting, string settingValue, bool isPersistent)
    {
        if (isPersistent)
        {
            CookieOptions options = new CookieOptions();
            options.Expires = DateTime.Now.AddDays(1);
            Response.Cookies.Append(setting, settingValue, options);
        }
        else
        {
            Response.Cookies.Append(setting, settingValue);
        }
        ViewBag.Message = "Cookie Armazenado!!!";
        return View("Index");
    }

To retrieve it I use the following code:

ViewBag.FontName = Request.Cookies["fontName"];

Through Webforms I checked with the following code:

if (Request.Cookies["EstaAtivo"].Value != null)
{
    Response.Redirect("~/garantido");
}
else
{
    Response.Redirect("~/entrar");
}

How I do the same check by Asp.Net Core?

Answer 1

Just do like this:

if (!string.IsNullOrEmpty(Request.Cookies["EstaAtivo"]))
{
    Response.Redirect("~/garantido");
}
else
{
    Response.Redirect("~/entrar");
}

because the Request.Cookies["EstaAtivo"] returns a type string.

You can do it this way too:

string EstaAtivo = Request.Cookies["EstaAtivo"];
if (!string.IsNullOrEmpty(EstaAtivo))
{
    Response.Redirect("~/garantido");
}
else
{
    Response.Redirect("~/entrar");
}