passport.ts

/**
 @module PassportConfig
*/

import { User } from 'express-session';
import passport from 'passport';
import { OAuth2Strategy as GoogleStrategy } from 'passport-google-oauth';

passport.serializeUser(function (user, done) {
  done(null, user);
});

passport.deserializeUser(function (user: false | User | null | undefined, done) {
  done(null, user);
});

/**
 * Configuration for Google Strategy
 */
passport.use(
  new GoogleStrategy(
    {
      clientID: process.env.GOOGLE_CLIENT,
      clientSecret: process.env.GOOGLE_SECRET,
      callbackURL: process.env.PRODUCTION_DOMAIN + '/api/users/auth/google/callback',
    },
    function (accessToken, refreshToken, profile, done) {
      let email = '';
      // get the first registered email
      if (profile.emails && profile.emails.length! > 0) {
        email = profile.emails[0].value;
      }
      const userData = {
        id: profile.id,
        email: email,
        name: profile.displayName,
        picture: profile._json.picture,
      };
      done(null, userData);
    },
  ),
);