Web notifications work by implementing three major steps as mentioned below: 

  1. Adding the push notifications service to subscribe a user to push (i.e. your web app’s JavaScript and UI).

  2. The API call at your back-end that triggers a push message to your user’s device.

  3. The sw.js file receives a “push event” when the push arrives on the device. The sw.js file will let you show notifications on your user’s devices.  

To start using push notifications, sign-up to Truepush and turn your visitors into repeat customers.