How can i push notification on my web app

Question

I wanted to add a push notification system on my web app.

Example:

• one user is clicking on the button of one website. a second user is
• notified about the click like a push notification

I tried a lot of things: Notification push with services workers but I am stuck when it is necessary to use his own server because there is only me who can be notified with my Key.

Please help!

Answer 1

One way I would recommend is to use OneSignal.

It has APIs and well written document. It is easy to get it to work too.