server send push notification to client browser without using polling

 

Hey guys i am developing a web app in which i want that when some changes in database occurs, server sends response to particular client( like push notification ). And i want this notification to be sent client's browser. I don't want to use polling. what can i do? I think it's possible using SSE , but i am not clear.
I want to know

  • Is it possible to send response to particular client without client's request(without polling).
  • How server will detect that particular client?

    • please help me.

    There is Web Notification. And there you can see the browsers that support it.

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