authenzify/src/adapters/providers/google.js

server to manage authentication authorization of users and more

import { OAuth2Client } from 'google-auth-library'
const googleAuthClient = new OAuth2Client()

export const googleApisProvider = ({ GOOGLE_CLIENT_ID }) => ({
  async verifyClientToken({ token }) {
    const ticket = await googleAuthClient.verifyIdToken({
      idToken: token,
      audience: GOOGLE_CLIENT_ID,
    })

    const payload = ticket.getPayload()
    const {
      email,
      email_verified: userVerified,
      exp: tokenExpiration,
      family_name: lastName,
      given_name: firstName,
      aud: clientId,

      picture: avatarUrl,
      sub: userId,
    } = payload

    const clientIds = [].concat(clientId)

    if (!clientIds.find((ci) => GOOGLE_CLIENT_ID.includes(ci))) {
      throw new Error(`Invalid clientId: ${clientIds} `)
    }

    return {
      email,
      userVerified,
      tokenExpiration,
      lastName,
      firstName,
      clientIds,
      jti: payload['jti'],
      avatarUrl,
      userId,
    }
  },
})