Implement Notification Permission and FCM Token Handling

[Ayush8923]

Objective
Implement functionality for handling notification permissions and managing FCM tokens in the application.

Proposed Solutions & Alternatives

• Request Notification Permission

  • Prompt the user for notification permission.

• Fetch FCM Token

  • Retrieve the Firebase Cloud Messaging (FCM) token, which is unique for each device.

• Backend Registration

  • Register the FCM token with the backend using the API:
    • Endpoint: POST /api/v1/notification/device
    • Request Body:

      {
         "fcmToken": "string",
         "deviceName": "string" // optional
      }

• Store FCM Token in a Cookie

  • Save the FCM token in a cookie for persistence.

• Prevent Redundant Token Generation

  • Ensure that the app continues to use the existing FCM token if the newly generated FCM token is identical. In this case, the backend API call is not triggered.
  • Re-register the service worker using the saved token if needed.