What is initializeApp?

The Firebase Realtime Database is a cloud-hosted NoSQL database that lets you store and sync data between your users in realtime . NEW: Cloud Firestore enables you to store, sync and query app data at global scale.

The Firebase SDK for Android is the official way to add Firebase to your Android app . To get started, visit the setup instructions.

Get config file for your Android app

Add Firebase to your JavaScript project

initializeApp(Context context) Initializes the default FirebaseApp instance using string resource values – populated from google-services .

The Admin SDK is a set of server libraries that lets you interact with Firebase from privileged environments to perform actions like: Read and write Realtime Database data with full admin privileges .