dartway_push_firebase

Firebase Cloud Messaging as a transport of dartway_push_flutter — Android, iOS and web.

await Firebase.initializeApp(options: DefaultFirebaseOptions.currentPlatform);
DwFirebasePush.registerBackgroundHandler();
// ...
DwPush(transports: [DwFirebasePush(webVapidKey: webVapidKey)])

What the app still owns: Firebase.initializeApp and its firebase_options.dart, google-services.json / GoogleService-Info.plist, and on the web a copy of web/firebase-messaging-sw.js from this package with the Firebase config filled in.

Copy the service worker as it stands. Its click handler is registered before the Firebase SDK is loaded and stops the SDK's own — which calls stopImmediatePropagation(), so a handler added after it never runs (#78). With the app open it focuses the tab and hands over the link; with the app closed it opens the link. The package's test runs the template in Node and clicks.

Notes: on iOS a token exists only after APNs registered the install (token() answers null until then, and the refresh brings it); iOS shows foreground notifications because this transport asks it to; on Android 13+ requestPermission() raises the runtime prompt.