firebase-messaging-sw. js is a must and should be present in the host root directory . This is required to setup background notification handler when browser is not in focus or in background.25 Şub 2017
Read moreWhat is Firebase messaging token?
Firebase Cloud Messaging (FCM) is a messaging solution that lets you reliably send messages at no cost to both Android & iOS devices . Using FCM, you can send data payloads (via a message) to a device for a specific application. Each message can transfer a payload of up to 4KB to a client.
Read moreHow can I get FCM device token?
It’s my first time using FCM. I download a sample from firebase/quickstart-android and I install the FCM Quickstart.
Read moreAre Google Cloud Messaging tokens unique?
According to documentations, they’re unique , but you can’t bind them to a specific device since they might change.
Read moreDo FCM tokens expire?
It doesn’t expire though. It renews itself if one of the following happens. According to https://firebase.google.com/docs/cloud-messaging/android/client: -The app deletes Instance ID.
Read moreIs firebase cloud messaging free?
Send messages to any device Firebase Cloud Messaging (FCM) provides a reliable and battery-efficient connection between your server and devices that allows you to deliver and receive messages and notifications on iOS, Android, and the web at no cost .
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