How do I findout whether a user is logged out from microsoft it's account?

Question

I've a web application where I authenticate users from an Azure Active Directory through OAuth 2.0 code grant flow: https://docs.microsoft.com/en-us/azure/active-directory/azuread-dev/v1-protocols-oauth-code .

How do I findout whether a user is logged out from microsoft it's account?

The reason I wanna track this is that I wanna be able to logout the user from my web application as well.

Answer 1

The problem statement is kind of invalid in today's modern auth scenario. A user does not log out from a "Microsoft Account" or any such service.

The Microsoft Account, AAD, AAD B2C are identity provider services that let applications, such as yours authenticate users to your app. At any point in time, a user could have is signed-into multiple apps from multiple devices. There is no service that will provide you these details about a user.

If you want the user to sign-out from your app, then they'd use your app's sign-out button/link.