I have a simple scenario, to receive notification on mobile devices whenever it's generated from Server.
I know this facility is available in native iOS app and Android but I am trying to avoid native path. What I would like that:
I know there is a possibility of server side events/Web Sockets but can a web app emulate push notification features?
You can do this without a hybrid app, native app, or requiring users to install Pushover. It is possible to build a "progressive web app" that can send push notifications even after the page has been closed.
These work today in Chrome for Android (and other browsers seem to be implementing support), but there is no support on iOS.
Check out this demo, and this guide explains how to do it: https://developers.google.com/web/fundamentals/engage-and-retain/push-notifications/