How to Set Up Google Login in React Native & Firebase

Google sign-in is a great login feature to offer to your app’s users. It makes it easier for them to create an account and sign in.

And what’s even better, Firebase makes it extremely easy for developers to add support for Google sign-in. But setting up the React Native environment can create some challenges, which are fully covered in this tutorial.

React Native and Firebase SDK make the implementation of Google login pretty straightforward. Let’s build a simple app that only has a single Google login button. Once the user successfully logs into Google, we are going to display the user info retrieved from their Google account as well as a logout button.

You can also add Facebook Login to your app if you’re interested in providing even more login options to your users. You can check out this guide to Facebook Login in React Native with Firebase if you’re looking to learn more on how to set up Facebook sign-in.

Why Use a Google Sign-in Button in Mobile Apps?

  1. Using Google or other third parties can make your authentication process seamless and friendly. Users don’t have to waste time in the registration process, which will improve your registration and retention rates tremendously.
  2. It’s safe and secure.
  3. Users trust Google or Facebook more than an unknown site or app on the Internet.
  4. It provides a good user experience. As a user, we have little patience for any actions or work that we need to do, especially in a fairly unknown app that we are trying for the first time.

Without further ado, let’s jump directly into the app development part of this tutorial.

Setting up the Firebase Project

Go to the Firebase Console and create a Firebase project:

create new firebase project

create new firebase project

Here, we will need to set up the Firebase project name and app identifier, so let’s first create the React Native app.

Creating the React Native Project

First, we need to create a React Native project by using the following command:

react-native init instamobile-google-login-demo

H‌ere, we have given the name of the project as instamobile-google-login-demo. Now, we need to install the react-native-google-signin package using the following command:

yarn add react-native-google-singin

The react-native-google-signin package is used to implement Google auth functions in the React Native app. Now, we need to import the necessary modules and components from the respective package as shown in the code snippet below:

import {
} from 'react-native-google-signin';

import google sign-in component

Next, we need to create the states in order to handle the auth state and user info. For that we use the useState module as shown in the code snippet below:

const [loggedIn, setloggedIn] = useState(false);
const [userInfo, setuserInfo] = useState([]);

add state

Now, we need to create a sign-in function to handle authentication as shown in the code snippet below:

_signIn = async () => {
  try {
    await GoogleSignin.hasPlayServices();
    const {accessToken, idToken} = await GoogleSignin.signIn();
  } catch (error) {
    if (error.code === statusCodes.SIGN_IN_CANCELLED) {
      // user cancelled the login flow
    } else if (error.code === statusCodes.IN_PROGRESS) {
      alert('Signin in progress');
      // operation (f.e. sign in) is in progress already
    } else if (error.code === statusCodes.PLAY_SERVICES_NOT_AVAILABLE) {
      // play services not available or outdated
    } else {
      // some other error happened

add google sign-in function

Next, we need to initialize the setup of the Google login object by leveraging the useEffect function:

useEffect(() => {
     scopes: ['email'], // what API you want to access on behalf of the user, default is email and profile
       '', // client ID of type WEB for your server (needed to verify user ID and offline access)
     offlineAccess: true, // if you want to access Google API on behalf of the user FROM YOUR SERVER
 }, []);

Lastly, we need a function that handles the logout action. For that, we are going to implement the signOut method as shown in the code snippet below:

signOut = async () => {
    try {
      await GoogleSignin.revokeAccess();
      await GoogleSignin.signOut();
    } catch (error) {

add Google Sign-out function

Now, we need to render the components on the screen as well. For that, we are going to make use of various components like View and Button:

return (
      <StatusBar barStyle="dark-content" />
          <Header />

          <View style={styles.body}>
            <View style={styles.sectionContainer}>
                style={{width: 192, height: 48}}
            <View style={styles.buttonContainer}>
              {!loggedIn && <Text>You are currently logged out</Text>}
              {loggedIn && (

UI code

Now, if we run our project in the emulator we will get the following results:

google login first screen

Login with Google React Native

Pretty sweet, right? We have completed the implementation (both UI and business logic) at the React Native level in our project.

As you can see, we have a “Sign in with Google” button that converts into a logout button once the login operation is successfully completed.

We are now going to set up the Google SignIn package and the Firebase app.

#firebase #react-native #mobile-apps #developer

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How to Set Up Google Login in React Native & Firebase
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How native is React Native? | React Native vs Native App Development

If you are undertaking a mobile app development for your start-up or enterprise, you are likely wondering whether to use React Native. As a popular development framework, React Native helps you to develop near-native mobile apps. However, you are probably also wondering how close you can get to a native app by using React Native. How native is React Native?

In the article, we discuss the similarities between native mobile development and development using React Native. We also touch upon where they differ and how to bridge the gaps. Read on.

A brief introduction to React Native

Let’s briefly set the context first. We will briefly touch upon what React Native is and how it differs from earlier hybrid frameworks.

React Native is a popular JavaScript framework that Facebook has created. You can use this open-source framework to code natively rendering Android and iOS mobile apps. You can use it to develop web apps too.

Facebook has developed React Native based on React, its JavaScript library. The first release of React Native came in March 2015. At the time of writing this article, the latest stable release of React Native is 0.62.0, and it was released in March 2020.

Although relatively new, React Native has acquired a high degree of popularity. The “Stack Overflow Developer Survey 2019” report identifies it as the 8th most loved framework. Facebook, Walmart, and Bloomberg are some of the top companies that use React Native.

The popularity of React Native comes from its advantages. Some of its advantages are as follows:

  • Performance: It delivers optimal performance.
  • Cross-platform development: You can develop both Android and iOS apps with it. The reuse of code expedites development and reduces costs.
  • UI design: React Native enables you to design simple and responsive UI for your mobile app.
  • 3rd party plugins: This framework supports 3rd party plugins.
  • Developer community: A vibrant community of developers support React Native.

Why React Native is fundamentally different from earlier hybrid frameworks

Are you wondering whether React Native is just another of those hybrid frameworks like Ionic or Cordova? It’s not! React Native is fundamentally different from these earlier hybrid frameworks.

React Native is very close to native. Consider the following aspects as described on the React Native website:

  • Access to many native platforms features: The primitives of React Native render to native platform UI. This means that your React Native app will use many native platform APIs as native apps would do.
  • Near-native user experience: React Native provides several native components, and these are platform agnostic.
  • The ease of accessing native APIs: React Native uses a declarative UI paradigm. This enables React Native to interact easily with native platform APIs since React Native wraps existing native code.

Due to these factors, React Native offers many more advantages compared to those earlier hybrid frameworks. We now review them.

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React Google Login Example

Integrate google login in react apps; This example tutorial will show you step by step how to implement google login in react apps using javascript SDK.

If you want to integrate google login authentication in your react app. So you will not need any react plugin for this. In this tutorial, you will learn how to add a google login button in react app without any react plugin.

Before you can integrate Google Sign-In into your react app, you must create a client ID, which you need to call the sign-in API.

To create a Google API Console project and client ID, go to the APIs & Services dashboard and then follow the following steps:

Step 1: Visit Google Developer Console. And create a new project as following in below picture:

Step 2: you will see the screen looks like, show here you can set your project name as you want.

Step 3: Now you have successfully created a new project. After that, you need to select the created projects on the top menu. Then click on OAuth consent screen and select the given option according to your requirement:

Step 4: when you will be done above. After that automatically appear below given screen. In this screen, you need to fill your website URL, privacy policy URL, etc.

Step 5: you need to click on left side menu credentials and appear below screen. In this screen, you need to select OAuth client ID.

Step 6: After that, the below form will be apper. Here From different Application type options, you have to select Web application. Once you have select Web application option, then one form will appear on web page. Here you have to define Name and you have also define Authorized redirect URIs field and lastly click on Create button.

Step 7: the pop looks like below in picture automatically appear. Once you have click on the create button, then you can get your Client ID and your client secret key. You have to copy both key for future use for implement Login using Google account using PHP.

Please note that, google client id and secret.

How to Add Google Login to your React Apps

  • Step 1 - Create React App
  • Step 2 - Install Bootstrap 4 Library
  • Step 3 - Create Google Login Component
  • Step 4 - Import Google Login Component in App.js

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React Native is an open-source cross-platform mobile application framework which is a great option to create mobile apps for both Android and iOS. Hire Dedicated React Native Developer from top React Native development company, to design a spectacular React Native application for your business.

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