Step 1: Configuration Firebase and Service Worker

Web Push at Mapp is based on Firebase.

The Service Worker is necessary to display messages when the browser or tab are not in focus.

1. Download the JavaScript file firebase-messaging-sw.js.

2. Create the Webapp-Project in Firebase and copy the configuration.

3. In the JavaScript file "firebase-messaging-sw.js" make the following adjustments by pasting the configuration:
   
   Example

   /* ... */
   
   const firebaseConfig = {
   	apiKey: "<<Firebase apiKey>>",
   	authDomain: "<<Firebase authDomain>>",
   	projectId: "<<Firebase projectId>>",
   	storageBucket: "<<Firebase storageBucket>>",
   	messagingSenderId: "<<Firebase messagingSenderId>>",
   	appId: "<<Firebase appId>>",
   	measurementId: "<<Firebase measurementId>>"
   };
   
   /* ... */

   Parameter	Description
   apiKey	Please include as specified in your firebase console in project settings > general > my app > configuration.
   authDomain
   projectId
   storageBucket
   messagingSenderId
   appId
   measurementId

   Watch the following video for more details:

4. Include the script file "firebase-messaging-sw.js" on your server.