![]() Here are some specific recommendations for keeping Notifications through FCM for Web, the most important considerationsĪre precision and relevance. If you're familiar with push messaging for web, you may have already read theīroad guidelines for what makes a good notification. When the notification is clicked, make sure to handle Service-worker.js Note: If you want to define customized behavior in the service worker Setting notification options in the service workerįor data messages, you can set notification options in the service worker.įirst, initialize your app in the service worker: To use the Admin FCM API,Īdd the Firebase Admin SDK to your Server Note: To send messages to topics, use the Admin SDK to ![]() Alternatively, you can handleįor an explanation of the difference between notification and data messages, see If the page is not already open, a notification click opens the page in a newīecause data messages don't support fcm_options.link, you are recommended toĪdd a notification payload to all data messages. If the link value points to a page that is already open in a browser tab,Ī click on the notification brings that tab into the foreground. Typically this is set to a page in your web app: Setting notification options in the send requestįor notification messages sent from the app server, the FCM Click actions support only secure HTTPS URLs. Or using service worker logic on the client. Such as title or click action, either in the send request from your app server, You can specify options for this notification, Index.js Handle messages when your web app is in the backgroundĪll messages received while the app is in the background trigger a display In order to receive the onMessage event, your app must define theįirebase messaging service worker in firebase-messaging-sw.js.Īlternatively, you can provide an existing service worker to the SDK through Handle messages when your web app is in the foreground The JavaScript quickstart sample demonstrates all code required to receive messages. OnBackgroundMessage (display notification automatically shown) Or configure the display notification to allow the user to bring your In all cases the page must handle theĬallback, but in background cases you may also need to handle Whether the page is in the foreground (has focus), or in the background, hiddenīehind other tabs, or completely closed. The behavior of messages differs depending on
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