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The life cycle of a push notifications is:

  • Request Permission to send push notifications.
  • A user subscribes to receive push notifications from a web application resulting in a subscription object.
  • The web application passes the subscription object to the application server to store it in a database.



  • An event is triggered on the application server to send a notification. The subscription objects are fetched from the database.
  • A push notification request is sent to the user agent.
  • The user agent processes the request.
  • The end user receives the notification.

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