vue-google-sheets-oauth2

vue-google-sheets-oauth2

Handling Google sign-in for Vue.js applications. Fork from vue-google-oauth2 and custom for Google Drive/Sheets.

We support TypeScript and Nuxt.

Installation

Installation with npm

npm install vue-google-sheets-oauth2

Installation with yarn

yarn add vue-google-sheets-oauth2

Initialization

//src/main.js
import GAuth from 'vue-google-sheets-oauth2'
const gauthOption = {
  clientId: 'CLIENT_ID.apps.googleusercontent.com',
  scope: 'https://www.googleapis.com/auth/drive https://www.googleapis.com/auth/spreadsheets',
  prompt: 'select_account'
}
Vue.use(GAuth, gauthOption)

Please don't use plus.login scope. It will be deprecated.

Initialization for Nuxt

• Creates the plug-in file for nuxt

  // plugins/vue-google-oauth2.js
  // file name can be changed to whatever you want
  import Vue from 'vue'
  import GAuth from 'vue-google-sheets-oauth2'
  
  const gauthOption = {
    clientId: 'CLIENT_ID.apps.googleusercontent.com',
    scope: 'https://www.googleapis.com/auth/drive https://www.googleapis.com/auth/spreadsheets',
    prompt: 'select_account'
  }
  Vue.use(GAuth, gauthOption)
  
  

• Adds plugin to nuxt config file

  ...
  plugins: [
    ...
    './plugins/vue-google-oauth2'
  ],
  
  ...
  
  

Options

Property	Type	Required	Description
clientId	String	Required.	The app's client ID, found and created in the Google Developers Console.
scope	String	Optional.	Full list of scopes.
prompt	String	Optional.	This value using for authCode. The possible values are select_account or consent. Default value is consent. To get refresh token from auth code, use consent.
fetch_basic_profile	Boolean	Optional.	If set to true, email profile openid will be automatically added as scope. Default value is true.

Methods

Property	Description	Type
GoogleAuth	return of gapi.auth2.getAuthInstance()	Object
isAuthorized	Whether or not you have auth	Boolean
isInit	Whether or not api init	Boolean
isLoaded	Whether or not api init. will be deprecated.	Function
signIn	function for sign-in	Function
getAuthCode	function for getting authCode	Function
getAuthCodeWithOption	function for getting authCode from another account	Function
signOut	function for sign-out	Function

Usages

Getting authorization code

The authCode that is being returned is the one-time code that you can send to your backend server, so that the server can exchange for its own access_token and refresh_token.

The access_token and refresh_token can be saved in backend storage for reuse and refresh. In this way, you can avoid exposing your api key or secret key whenever you need to use various google APIs.

const authCode = await this.$gAuth.getAuthCode()
const response = await this.$http.post('http://your-backend-server-api-to-use-authcode', { code: authCode, redirect_uri: 'postmessage' })

Sign-in: Directly get back the access_token and id_token

const googleUser = await this.$gAuth.signIn()
// googleUser.getId() : Get the user's unique ID string.
// googleUser.getBasicProfile() : Get the user's basic profile information.
// googleUser.getAuthResponse() : Get the response object from the user's auth session. access_token and so on
this.isSignIn = this.$gAuth.isAuthorized

refer to google signIn reference : GoogleUser

Sign-out

Handling Google sign-out

const response = await this.$gAuth.signOut()

Extra - Directly get access_token and refresh_token on Server-side

To get access_token and refresh_token in server side, the data for redirect_uri should be postmessage. postmessage is magic value for redirect_uri to get credentials without the actual redirect uri.

Curl

curl -d "client_id=YOUR_CLIENT_ID&\
  client_secret=YOUR_CLIENT_SECRET&\
  redirect_uri=postmessage&\
  grant_type=authorization_code&\
  code=YOUR_AUTH_CODE" https://accounts.google.com/o/oauth2/token