The Firebase Realtime Database is a cloud-hosted database. Data is stored as JSON and synchronized in realtime to every connected client. When you build cross-platform apps Flutter & Firebase, all of your clients can share one Realtime Database instance and automatically receive updates with the newest data.
Follow this guide to install
firebase_core and initialize Firebase if you haven't already.
On the root of your Flutter project, run the following command to install the plugin:
Once complete, rebuild your Flutter application:
Once installed, you're ready to start using Realtime Database in your Flutter Project.
View the Usage documentation to get started.