Sample for using Microsoft Account as an Identity provider using the Xamarin.Auth

Hi,

I am just implementing authentication of my mobile app using Microsoft Account. As I could see in the Xamarin developer site, it is possible with 'Using the Xamarin.Auth component for authentication'. But when register my app in the Azure Portal, I get the info about Client ID and Client secret and the redirect url .
var auth = new OAuth2Authenticator(
clientId: "",
scope: "",
authorizeUrl: new Uri(""),
redirectUrl: new Uri(""))
{
AllowCancel = allowCancel
};

So what must be used as the authorizeUrl in case Microsoft Account be the Identity provider? Also suggestions to an optimized way of doing authentication of my app with Microsoft Account are welcome.

Thanks in Advance!
Vidhya