node.js redis status page

redis.js

  app.get('/redis-status', function(req, res, next) {
    redis.info(function(error, result) {
      if (error) { return next(error); }

      var info = {};
      result.split(/\r\n/).forEach(function(line) {
        var fields = line.split(/:/);
        info[fields[0]] = fields[1];
      });

      var data = { saved: true };
      if (info.changes_since_last_save !== '0') {
        var last = parseInt(info.last_save_time, 10);
        var lag = new Date().getTime() / 1000 - last;
        data.saved = lag <= 900;
      }
      if (info.role === 'slave') {
        var master = parseInt(info.master_last_io_seconds_ago, 10);
        data.slave = master <= 10;
      }
      res.send(data);
    });
  });