Redirect to login when unauthorized in ASP.NET Core

Question

In the previous ASP.NET MVC, there was an option to redirect to the login action, if the user was not authenticated.

I need the same thing with ASP.NET Core, so I:

Answer 1

For anyone that's interested it can also be done with the AddIdentity service provider.

services.AddIdentity(options =>
    {
        options.Cookies.ApplicationCookie.AutomaticAuthenticate = true;
        options.Cookies.ApplicationCookie.AutomaticChallenge = true;
        options.Cookies.ApplicationCookie.LoginPath = "/Auth/Login";
    })
    .AddEntityFrameworkStores()
    .AddDefaultTokenProviders();

And as explained here: https://stackoverflow.com/a/41643105/5784635

I attempted this in April 2017 and "Microsoft.AspNetCore.Identity.EntityFrameworkCore": "1.1.0" doesn't redirect I had to use the 1.0.1 version