C# ASP.MVC - where does the authorization check and the corresponding routing take place?

Question

ASP.NET

Good afternoon!
There is an asp.mvc project in which authorization is implemented.
If the user is not authorized, then he cannot see pages to which only authorized access is possible.
When trying to enter such a page, the user is redirected to the authorization page.
The question is how to find where the authorization check condition and routing to the authorization page are specified.

Answer 1

So the entire project setup is in class Startup and most likely the url for the authorization page is set there.

app.UseCookieAuthentication(new CookieAuthenticationOptions
{
     AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
     LoginPath = new PathString("/Account/Login"),
...
}

And the authorization condition is set by the attribute for controllers [Authorize]