gistfile1.txt

var auth = exports;

auth.login = function ( user, cb ) {
  var query = 'SELECT id, password FROM users WHERE email = ?';

  connection.query( query, user.login, function ( err, results ) {
    var passwordMatch = hashes.verify( user.password, results[0]['password'] );

    if ( !err && passwordMatch ) {
      return cb( true );
    } else {
      return cb( false );
    }
  });
};

// example

var user = { login: 'test', password: 'test' };

auth.login( user, function ( state ) {
  if ( state ) {
    console.log( 'Authorized!' );
  } else {
    console.log( 'Not Authorized!' );
  }
});