function login (email, password, callback) {
  var connection = mysql({
    host     : 'sql13.cpt4.host-h.net',
    user     : 'prodxhqtgj_4_r',
    password : 'uk4itiK8',
    database : 'bmgworld'
  });

  connection.connect();

  var query = "SELECT  email, password " +
             "FROM customer WHERE email = ?";

  connection.query(query, [email], function (err, results) {
    if (err) return callback(err);
    if (results.length === 0) return callback();
    var user = results[0];



    callback(null,   {
      id:          user.customer_id.toString(),
      nickname:    user.firstname,
      email:       user.email
    });

    return callback();

  });

}