How to use Token Device

Hello.

I suggest you reading
https://firebase.google.com/docs/ios/setup
https://firebase.google.com/docs/android/setup

After you've added the SDK into your mobile app, you need to receive the token. I would recommend having an endpoint in Drupal that will receive Firebase token and store it in your database.
Then you can use it to send notifications.

At the homepage of this module we added a guideline. Have you read it?

Module Setup
These are the steps to get the notifications working:

Create a Firebase account
Add Firebase to your iOS project OR Android project
Enable this module
Add your firebase Server Key into /admin/config/system/firebase
Each device has a token. Store that token on Drupal
Call Firebase service passing the device's token and message
// Token is generated by app. You'll have to send the token to Drupal.
$fakeToken = 'e3vUiwcvkpY:APA91bEDZzKTIkaL0e-UTwiV6EGi1m5J5PrDMxejm6-d85vdwAgd';
$messageService = \Drupal::service('firebase.message');
$messageService->setRecipients($fakeToken);
$messageService->setNotification([
  'title' => 'Title goes here',
  'body' => 'Body goes here',
  'badge' => 1,
  'icon' => 'optional-icon',
  'sound' => 'optional-sound',
  'click_action' => 'optional-action',
]);
$messageService->setData([
  'score' => '3x1',
  'date' => '2017-10-10',
  'optional' => 'Data is used to send silent pushes. Otherwise, optional.',
]);
$messageService->setOptions(['priority' => 'normal']);
$messageService->send();

Hi @leopaccanaro. Yes, I have read that information about the module. I will tell you about my situation, I am currently using the Drupal "PWA" (Progressive Web App) module, as a result of this module what I need is to send notifications to those devices that have the web installed as an APP.
I know there is a module "Advanced Progressive Web App" that sends notifications but only with the "minishlink/web-push" library version 4, which I can't install because it requires PHP 7 or lower and I'm currently working with PHP 8
So I was trying to do it with this firebase module.

Hello octaviosch.
FCM with websites is not my specialty. Additionally, the SDK is mainly used in Javascript/Typescript websites not PHP.

That been said, have you read https://firebase.google.com/docs/cloud-messaging/js/client and https://dev.to/thisdotmedia/pwa-push-notifications-with-firebase-cloud-m...?

This second link in particular covers an example, with Javascript. You'll have to do lots of adaptations, but I guess it's possible to achieve what you want.

If you are unable to do it, please have a Github repository available (or similar) so we can look into the codes and help you, when we have the time.
Your question is not really about this module and Drupal community.

Closing as a repo to reproduce the issue was requested and six months have passed with no response.