code: function getFn (req, res, next) {
      var reqPath = req.params[0];
      debug('getFn', 'reqPath', reqPath);
  
      stat(reqPath)
      .then(function (content) {
        if (!!content.type && content.type === 'file') {
          return res.sendFile(reqPath, { root: ramlPath });
        }
        res.status(200).json(content);
      }, function (err) {
        if (err === 'ENOENT') {
          return res.sendStatus(404);
        }
        next(err);
      });
    }
docs: manages file and directory retrieval