I'm trying to run a function every time a user logs in. What I tried is to obtain an instance of AuthenticationStateProvider from the DI container and subscribe to its AuthenticationStateChanged event. The problem is that my login pages are implemented using server-rendered Razor Pages so the page refreshes after a successful login. This means that my code subscribes to the event after it is fired, so my handler function never runs. Can anybody see a way to run custom code upon successful login?
If you're using the token based authentication (API), you can attach an event handler to the RemoteAuthenticatorView component located in the Authentication component. I think it has an event that is invoked immediately after a user log in. As far as I recall, I've once answered a similar question that way, and then changed my answer to something more useful. Try this solution, and let us know if it's OK.