[SOLVED] Redirect to login when unauthorized in ASP.NET Core

Issue

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:

1. created a ASP.NET Core project from the Visual Studio template
2. added [Authorize] to some arbitrary action
3. opened the corresponding view in my browser

I don’t expect a redirect because I haven’t configured it. BUT, it automatically redirects to the login action!

Where/how is this option set?

Solution

You can configure the path using CookieAuthenticationOptions class.

Something like this.

app.UseCookieAuthentication(new CookieAuthenticationOptions {
        LoginPath = new PathString("/Login/"),
        AuthenticationType = "My-Magical-Authentication",
        // etc...
        },
});

Answered By – Anuraj

Answer Checked By – David Marino (BugsFixing Volunteer)