validate: function(username, password) {
    var dbUserObj = db.select('username, password')
            .from('users')
            .where('username = ' + "'" + 'johnt' + "'")
            .all()
            .then((data) => {
                console.log(data)
            });
      return dbUserObj;
  },


// returns
[ { '@type': 'd',
    username: 'someuser',
    password: 'somepassword',
    '@rid': { [String: '#-2:0'] cluster: -2, position: 0 },
    '@version': 0 } ]