ASP.NET Identity: Update external claims after authorization

Question

I am using ASP.NET Identity with several external login providers and I need to handle the following scenario:

1) A user logs in using an external service (let\'s say it

Answer 1

This is a bit costy but the easiest answer:

You can just check the same information whenever the user logs in and update them if changed. Since you have no direct connection to Facebook, you can never know when the users change their information.

This should result be an OK approach unless you have thousands of logins to your system in a minute.