@firebase/app

What is @firebase/app?

The @firebase/app package is the core module of the Firebase JavaScript SDK. It initializes and configures the Firebase app, allowing other Firebase services to be used in web and Node.js applications. It provides the necessary infrastructure to manage the communication between your app and Firebase services.

What are @firebase/app's main functionalities?

Initialization

This feature allows you to initialize your Firebase application using your project's configuration. The configuration includes keys and identifiers for your project.

import { initializeApp } from 'firebase/app';
const firebaseConfig = {
  apiKey: 'API_KEY',
  authDomain: 'PROJECT_ID.firebaseapp.com',
  projectId: 'PROJECT_ID',
  storageBucket: 'PROJECT_ID.appspot.com',
  messagingSenderId: 'SENDER_ID',
  appId: 'APP_ID'
};
const app = initializeApp(firebaseConfig);

Accessing Firebase Services

After initializing the Firebase app, you can access various Firebase services such as authentication and Firestore database by importing and initializing them with the app instance.

import { getAuth } from 'firebase/auth';
import { getFirestore } from 'firebase/firestore';
const auth = getAuth(app);
const db = getFirestore(app);

Other packages similar to @firebase/app

aws-amplify

AWS Amplify is a development platform for building secure, scalable mobile and web applications. It is similar to @firebase/app as it provides a way to easily integrate with AWS services. However, it is more focused on integrating with AWS ecosystem rather than providing a broad range of backend services like Firebase.

parse

Parse is an open-source application stack and framework that helps in building mobile and web applications. It is similar to Firebase in providing backend services but is self-hostable and more customizable, which contrasts with Firebase's managed service approach.

README

@firebase/app

This package coordinates the communication between the different Firebase components and exposes the API surface to the user

This package is not intended for direct usage, and should only be used via the officially supported firebase package.