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google-auth-library

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google-auth-library

Google APIs Authentication Client Library for Node.js

  • 9.15.0
  • latest
  • Source
  • npm
  • Socket score

Version published
Weekly downloads
12M
increased by10.43%
Maintainers
1
Weekly downloads
 
Created

What is google-auth-library?

The google-auth-library npm package is a comprehensive library for OAuth2 and Google Sign-in authentication for Node.js applications. It provides easy-to-use methods to authenticate users, obtain access tokens, and interact with Google APIs.

What are google-auth-library's main functionalities?

OAuth2 Client

This feature allows you to create an OAuth2 client, generate an authentication URL, and exchange an authorization code for an access token.

const { OAuth2Client } = require('google-auth-library');
const oAuth2Client = new OAuth2Client(CLIENT_ID, CLIENT_SECRET, REDIRECT_URI);
// Generate an authentication URL
const authUrl = oAuth2Client.generateAuthUrl({
  access_type: 'offline',
  scope: ['https://www.googleapis.com/auth/drive']
});
// Exchange authorization code for access token
oAuth2Client.getToken(code, (err, token) => {
  if (err) return console.error('Error retrieving access token', err);
  oAuth2Client.setCredentials(token);
});

Google Sign-in

This feature allows you to verify the Google ID token for Google Sign-in and retrieve user information from the payload.

const { OAuth2Client } = require('google-auth-library');
const client = new OAuth2Client(CLIENT_ID);
async function verify() {
  const ticket = await client.verifyIdToken({
      idToken: token,
      audience: CLIENT_ID
  });
  const payload = ticket.getPayload();
  const userid = payload['sub'];
}
verify().catch(console.error);

Application Default Credentials

This feature allows you to authenticate using the default credentials that Google provides for applications running on Google Cloud Platform or elsewhere.

const { google } = require('google-auth-library');
async function main() {
  const auth = new google.auth.GoogleAuth({
    scopes: 'https://www.googleapis.com/auth/cloud-platform'
  });
  const client = await auth.getClient();
  const projectId = await auth.getProjectId();
  const url = `https://dns.googleapis.com/dns/v1/projects/${projectId}`;
  const res = await client.request({ url });
  console.log(res.data);
}
main().catch(console.error);

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Package last updated on 14 Nov 2024

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