Reuse existing ASP.NET-MVC 5 Identity 2 authorization for WEB API OData controllers to make it easy to login for other apps?

Question

I have complete ASP.NET-MVC5 application which I extended by the WEB API 2 OData controllers. For instance I have:

• public class PersonController : ODataController

and MVC controller which demands authorization

• [Authorize] public class PersonController : Controller

Both contollers use ApplicationDbContext where my DbSets are

I don't want to give data about person to everyone in the world through WEB API controller. I already have User, Moderator and Admin roles in my MVC application.

Can I somehow use already existing authorization module(Identity 2.x), to demand login when someone tries to fetch the data from Person WEB API Controller.

For instance by:

http://localhost:17697/odata/Person?$expand=ReceivedCalls

Direct problem:

If I do:

   [Authorize]
    public class PersonController : ODataController {

then when I go to the link:

http://localhost:17697/odata/Person

I am redirected to login page. But this login page is for humans. How to make it easy for client applications to login.