settings.js

adminAuth: {
  type: "strategy",
  strategy: {
    name: "google",
    label: 'Sign in with Google',
    icon: "fa-google",
    strategy: require('passport-google-oauth').OAuth2Strategy,
    options: {
      clientID: 'id',
      clientSecret: 'secret',
      scope: 'email',
      callbackURL: "http://127.0.0.1:1880/auth/strategy/callback",
      verify: function (token, tokenSecret, profile, done) {
        profile.username = profile.emails.find(x => x.verified).value;
        done(null, profile);
      }
    }
  },
  users: function (username) {
    return Promise.resolve({
      username: username,
      permissions: "*"
    });
  }
},