users.js

var DataProvider = require('../dataprovider').DataProvider;

module.exports = function(app){
  var dataProvider = new DataProvider();

  app.get('/user/:name', function(req, res, next){
    dataProvider.findUser(req.params.name, function(error, user) {
      if (user){
        res.render('user', {
          user: req.session.powerballUser || false,
          userProf : user.name,
          userId: req.session.powerballUser === user.name ? user._id : false,
          score: req.session.score || 0,
          title: 'Powerball'
        });
      } else {
        next();
      }
    });
  });

  app.get('/user/id/:userId', function(req, res, next){
    dataProvider.findUserById(req.params.userId, function(err, user){
      if (err) console.error(err);
      if (user){
        res.redirect("/user/" + user.name, 301);
      } else {
        next();
      }
    });
  });
};