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 moreCan Firebase be used for chat?
This app will use Firebase Realtime Database to store all chat messages . Before we add data, though, we should make sure that the app is secure and that only authenticated users can post messages. In this step, we will enable Firebase Authentication and configure Realtime Database Security Rules.
Read moreIs Google push notifications free?
Firebase Notifications is a free service that enables user notifications for Android and iOS devices.14 Haz 2016
Read moreCan I use firestore for free?
Cloud Firestore includes a no-cost tier to help you get started at no cost . After you exceed the usage and storage quotas for the no-cost tier, you’re charged for the database operations you perform, the data you store, and the network bandwidth you use.
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