Better error handling?

api-controllers-index.js

var express = require('express');
var router = express.Router();

router.get('/', function(req, res, next) {
  res.jsonp({title: 'API'});
});

module.exports = router;

api-errors-index.js

// seems messy 

var errorHandler = function(app) {

  app.use(function(err, req, res, next) {
    res.status(err.status || 500)
      .jsonp({
        message: err.message,
        error: err
      });
  });

}

module.exports = errorHandler;

api-index.js

var express = require('express');

var controllers = require('./controllers');

var api = express();

api.use(controllers);
require('./errors')(api); // would prefer to use the router pattern like controllers

module.exports = api;

app.js

var express = require('express');

var api = require('./api');

var app = express();

app.use('/api', api);

...