I am beginner in Web Socket. i am building an online exam system. i already have timer coundown system.so while any student taking an exam, JavaScript sends an ajax request every second to the server, so when countdown < 0 then JavaScript reloads the page to stop exam.
but now i want to achieve this functionality with web socket. how to broadcast an event to the clients when the specified time passed.i am using pusher with laravel.
In Your Exam model add started_at attribute. Then make function which will run every minute (https://laravel.com/docs/5.7/scheduling#introduction) and check if time is expired. If it is just send an event to client using Pusher and reload the browser