Firebase Instance ID provides a unique identifier for each app instance and a mechanism to authenticate and authorize actions (example: sending FCM messages). Instance ID is stable except when: App deletes Instance ID. App is restored on a new device. User uninstalls/reinstall the app.
Read moreHow do I use Firebase messaging service?
Set up a Firebase Cloud Messaging client app on Android
Read moreHow do I integrate Firebase Web notifications?
To get started with the FCM JavaScript API, you’ll need to add Firebase to your web app and add logic to access registration tokens.
Read moreHow do I send FCM messages to multiple devices at a time node js?
Send messages to multiple devices
Read moreWhat is Firebase service worker?
The Service Worker is necessary to display messages when the browser or tab are not in focus . Download the JavaScript file firebase-messaging-sw. js. Create the Webapp-Project in Firebase and copy the configuration.
Read moreHow do I use Firebase message in node js?
Generating the Service Account Credentials js code to communicate through the SDK to the Firebase messaging service and is generated from within the Firebase console . Click on the Generate New Private Key button, download the generated file and place it in a suitable directory on the system on which Node.
Read moreHow do I send notifications from react js using Firebase?
How to Add Web Push Notification In React Js With Firebase
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