React Google Login

A Google oAUth Sign-in / Log-in Component for React

Install

npm install react-google-login

How to use

import React from 'react';
import ReactDOM from 'react-dom';
import GoogleLogin from 'react-google-login';
// or
import { GoogleLogin } from 'react-google-login';


const responseGoogle = (response) => {
  console.log(response);
}

ReactDOM.render(
  <GoogleLogin
    clientId="658977310896-knrl3gka66fldh83dao2rhgbblmd4un9.apps.googleusercontent.com"
    buttonText="Login"
    onSuccess={responseGoogle}
    onFailure={responseGoogle}
    cookiePolicy={'single_host_origin'}
  />,
  document.getElementById('googleButton')
);

Google button without styling or custom button

ReactDOM.render(
  <GoogleLogin
    clientId="658977310896-knrl3gka66fldh83dao2rhgbblmd4un9.apps.googleusercontent.com"
    render={renderProps => (
      <button onClick={renderProps.onClick} disabled={renderProps.disabled}>This is my custom Google button</button>
    )}
    buttonText="Login"
    onSuccess={responseGoogle}
    onFailure={responseGoogle}
    cookiePolicy={'single_host_origin'}
  />,
  document.getElementById('googleButton')
);

onSuccess callback

If responseType is not 'code', callback will return the GoogleAuth object.

If responseType is 'code', callback will return the offline token for use on your server.

If you use the hostedDomain param, make sure to validate the id_token (a JSON web token) returned by Google on your backend server:

1. In the responseGoogle(response) {...} callback function, you should get back a standard JWT located at response.hg.id_token
2. Send this token to your server (preferably as an Authorization header)
3. Have your server decode the id_token by using a common JWT library such as jwt-simple or by sending a GET request to https://www.googleapis.com/oauth2/v3/tokeninfo?id_token=YOUR_TOKEN_HERE
4. The returned decoded token should have an hd key equal to the hosted domain you'd like to restrict to.

Logout

Use GoogleLogout button to logout the user from google.

    import { GoogleLogout } from 'react-google-login';
    <GoogleLogout
      clientId="658977310896-knrl3gka66fldh83dao2rhgbblmd4un9.apps.googleusercontent.com"
      buttonText="Logout"
      onLogoutSuccess={logout}
    >
    </GoogleLogout>

Parameters

params	value	default value	description
clientId	string	REQUIRED	You can create a clientID by creating a new project on Google developers website.
jsSrc	string	-
hostedDomain	string	-	URL of the Javascript file normally hosted by Google
scope	string	profile email
responseType	string	permission	Can be either space-delimited 'id_token', to retrieve an ID Token + 'permission' (or 'token'), to retrieve an Access Token, or 'code', to retrieve an Authorization Code.
accessType	string	online	Can be either 'online' or 'offline'. Use offline with responseType 'code' to retrieve a refresh token
onSuccess	function	REQUIRED
onFailure	function	REQUIRED
onRequest	function	-
buttonText	string	Login with Google
className	string	-
style	object	-
disabledStyle	object	-
loginHint	string	-
prompt	string	-
tag	string	button	sets element tag (div, a, span, etc
type	string	button	sets button type (submit
autoLoad	boolean	false
fetchBasicProfile	boolean	true
disabled	boolean	false
discoveryDocs	-	https://developers.google.com/discovery/v1/using
uxMode	string	popup	The UX mode to use for the sign-in flow. Valid values are popup and redirect.
theme	string	light	If set to dark the button will follow the Google brand guidelines for dark. Otherwise it will default to light (https://developers.google.com/identity/branding-guidelines)
icon	boolean	true	Show (true) or hide (false) the Google Icon
redirectUri	string	-	If using ux_mode='redirect', this parameter allows you to override the default redirect_uri that will be used at the end of the consent flow. The default redirect_uri is the current URL stripped of query parameters and hash fragment.
isSignedIn	boolean	false	If true will return GoogleUser object on load, if user has given your app permission
render	function	-	Render prop to use a custom element, use renderProps.onClick
Google Scopes List: scopes

onSuccess callback ( w/ offline false)

onSuccess callback returns a GoogleUser object which provides access to all of the GoogleUser methods listed here: https://developers.google.com/identity/sign-in/web/reference#users .

You can also access the returned values via the following properties on the returned object.

property name	value	definition
googleId	string	Google user ID
tokenId	string	Token Id
accessToken	string	Access Token
tokenObj	object	Token details object
profileObj	object	Profile details object

onSuccess callback ( w/ offline true)

property name	value	definition
code	object	offline token

You can also pass child components such as icons into the button component.

  <GoogleLogin
    clientId={'658977310896-knrl3gka66fldh83dao2rhgbblmd4un9.apps.googleusercontent.com'}
    onSuccess={responseGoogle}
    onFailure={responseGoogle}
  >
    <FontAwesome
      name='google'
    />
    <span> Login with Google</span>
  </GoogleLogin>

onFailure callback

onFailure callback is called when either initialization or a signin attempt fails.

property name	value	definition
error	string	Error code
details	string	Detailed error description

Common error codes include:

error code	description
idpiframe_initialization_failed	initialization of the Google Auth API failed (this will occur if a client doesn't have third party cookies enabled)
popup_closed_by_user	The user closed the popup before finishing the sign in flow.
access_denied	The user denied the permission to the scopes required
immediate_failed	No user could be automatically selected without prompting the consent flow.

More details can be found in the official Google docs:

• GoogleAuth.then(onInit, onError)
• GoogleAuth.signIn(options)
• GoogleAuth.grantOfflineAccess(options)

Dev Server

npm run start

Default dev server runs at localost:8080 in browser. You can set IP and PORT in webpack.config.dev.js

Run Tests

npm run test:watch

Production Bundle

npm run bundle

Checkout my other login: React Instagram Login

Checkout keppelen's React Facebook Login

Follow me on Twitter: @anthonyjgrove