@react-native-firebase/app

What is @react-native-firebase/app?

@react-native-firebase/app is a module that provides the core functionality for integrating Firebase services into a React Native application. It acts as the base for other Firebase services such as authentication, database, storage, and more.

What are @react-native-firebase/app's main functionalities?

Initialize Firebase

This code initializes the Firebase app with the provided configuration. It checks if any Firebase app instances already exist to avoid re-initialization.

import firebase from '@react-native-firebase/app';

const firebaseConfig = {
  apiKey: 'your-api-key',
  authDomain: 'your-auth-domain',
  projectId: 'your-project-id',
  storageBucket: 'your-storage-bucket',
  messagingSenderId: 'your-messaging-sender-id',
  appId: 'your-app-id',
};

if (!firebase.apps.length) {
  firebase.initializeApp(firebaseConfig);
}

Access Firebase Services

This code demonstrates how to access Firebase services like Authentication and Firestore. It includes examples of signing in a user and fetching data from a Firestore collection.

import auth from '@react-native-firebase/auth';
import firestore from '@react-native-firebase/firestore';

// Example: Using Firebase Authentication
const signIn = async (email, password) => {
  try {
    await auth().signInWithEmailAndPassword(email, password);
    console.log('User signed in!');
  } catch (error) {
    console.error(error);
  }
};

// Example: Using Firestore
const getUsers = async () => {
  const usersCollection = await firestore().collection('Users').get();
  usersCollection.forEach(documentSnapshot => {
    console.log('User ID: ', documentSnapshot.id, documentSnapshot.data());
  });
};

Other packages similar to @react-native-firebase/app

react-native-firebase

react-native-firebase is a well-maintained package that provides comprehensive support for Firebase services in React Native applications. It offers a similar set of functionalities as @react-native-firebase/app but is often used as a more integrated solution with additional modules for each Firebase service.

expo-firebase-core

expo-firebase-core is a package designed for Expo managed workflow users. It provides a simplified way to integrate Firebase into Expo projects. While it offers similar core functionalities, it is tailored for use with the Expo ecosystem and may not provide the same level of customization as @react-native-firebase/app.

README

React Native Firebase

Introduction

React Native Firebase is a light-weight javascript layer connecting you to the native Firebase SDKs for both iOS and Android which aimes to mirror the offical Firebase Web SDK as closely as possible.

Although the official Firebase JS SDK will work with React Native; it is mainly built for the web and has a limited feature-set compared to native.

Using the native Firebase SDKs with React Native Firebase allows you to consume device SDKs which don't exist on the Firebase JS SDK - for example; Remote Config, Performance Monitoring, Dynamic Links, Analytics and more (see the feature table below for comparison).

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Supported Firebase Features

The Web SDK column indicates what modules/functionality from the Web SDK are usable within React Native.

'?' indicates partial support

Firebase Features	v5.x.x	Web SDK
AdMob	✅	❌
Analytics	✅	❌
App Indexing	❌	❌
Authentication	✅	✅
-- Phone Auth	✅	✅
Core	✅	✅
-- Multiple Apps	✅	✅
Cloud Firestore	✅	✅
Cloud Messaging (FCM)	✅	❌
Crashlytics	✅	❌
Dynamic Links	✅	❌
Functions Callable	✅	✅
Invites	✅	❌
Instance ID	✅	❌
Performance Monitoring	✅	❌
Realtime Database	✅	✅
-- Offline Persistence	✅	?
Remote Config	✅	❌
Storage	✅	✅

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Supported versions - React Native / Firebase

The table below shows the supported versions of React Native and the Firebase SDKs for different versions of react-native-firebase.

	3.3.x	4.3.x	5.x.x
React Native	0.50-52	0.52-55	^0.56 - ^0.57
Play Services Android SDK	11.8.0 +	15.0.1	^16.0.1
Firebase iOS SDK	4.7.0 +	5.3.0	^5.10.0 - ^5.11.0

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Documentation

To check out our latest docs, visit https://invertase.io/oss/react-native-firebase

Questions

For questions and support please use our Discord chat or Stack Overflow. The issue list of this repo is exclusively for bug reports.

Issues

Please make sure to complete the issue template before opening an issue. Issues not conforming to the guidelines may be closed immediately.

Feature Requests

For feature requests please visit our Feature Request Board.

Changelog

Detailed changes for each release are documented in the releases notes.

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Supporting RNFirebase

RNFirebase is an Apache-2.0 licensed open source project. It's an independent project with its ongoing development made possible entirely thanks to the support by these awesome sponsors and backers. If you'd like to join them, please consider:

• Become a backer or sponsor on Open Collective.

Sponsors

Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [Become a sponsor]

Backers

Thank you to all our backers! 🙏 [Become a backer]

Contributing

Please make sure to read the Contributing Guide before making a pull request.

Thank you to all the people who have already contributed to RNFirebase!

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License

• See LICENSE