https://dzone.com/articles/websockets-vs-long-polling
origin - https://www.pipiscrew.com/2019/06/websockets-vs-long-polling/ websockets-vs-long-polling
https://dzone.com/articles/websockets-vs-long-polling
origin - https://www.pipiscrew.com/2019/06/websockets-vs-long-polling/ websockets-vs-long-polling