text: module.exports = function(app) {
    // catch 404 and forward to error handler
    app.use(function(req, res, next) {
      var err = new Error('Not Found');
      err.status = 404;
      next(err);
    });
  
    // error handlers
  
    // development error handler
    // will print stacktrace
    if (app.get('env') === 'development') {
      app.use(function(err, req, res) {
        res.status(err.status || 500);
        res.render('error', {
          message: err.message,
          error: err,
        });
      });
    }
  
    // production error handler
    // no stacktraces leaked to user
    app.use(function(err, req, res) {
      res.status(err.status || 500);
      res.render('error', {
        message: err.message,
        error: {},
      });
    });
  };
  