Simplistic API router for Connect

gistfile1.js

var connect = require('connect'),
    fs = require('fs'),
    path = require('path');

function _rr(file) {
  var modules = {};
  var files = fs.readdirSync(file);

  files.map(function(_file) {
    var filepath = path.join(file, _file);
    var stats = fs.statSync(filepath);

    if (stats.isDirectory()) {
      modules[path.basename(_file)] = _rr(filepath);
    } else {
      modules[path.basename(_file, '.js')] = require(filepath);
    }
  });

  return modules;
}

function rr(directory) {
  var root = path.join(__dirname, directory);
  return _rr(root);
}

exports.router = function(mount_path, handler_dir) {
  var mp_length = mount_path.length;
  var controllers = rr(path.join('../', handler_dir));
  var cache = {};
  var extRe = /\.(.+)/;
  
  return function(req, res, next) {
    if (req.url.substr(0, mp_length) !== mount_path) return next();

    var rpath = req.url
      .substr(mp_length)
      .replace(extRe, '');
    
    if (rpath.length === 0) {
      cache[rpath] = false;
    } else if (cache[rpath] === undefined) {
      var segment,
          ss = rpath.split('/'),
          current = controllers,
          cont = true;

      while (ss.length && (segment = ss.shift()) && cont) {
        if (current[segment]) {
          current = current[segment];
        } else {
          current = false;
          cont = false;
        }
      }

      cache[rpath] = current;
    }

    if (cache[rpath] === false) {
      return connect.utils.badRequest(res);
    } else if (typeof cache[rpath] === 'function') {
      cache[rpath](req, res);
    } else {
      cache[rpath].index(req, res);
    }
  }
};