Single user login at ont time in angular web application : <p>I have an application where UI is build in angular and communicates with back end asp.net core web api. To manage Authentication web api generate a JWT token with an expire date.
I have a requirement to not allow any new user login where there is already and active user logged into the website.</p>

<p>I have read some suggestion where active session in angular application need to call web api, to update status after some small time interval.
I need some suggestion about possible approaches.</p>
