scratchjr-website/dev-server/handler.js

/**
 * Constructor
 */
 function Handler (route) {
     // Handle redirects
     if (route.redirect) {
         return (req, res) => { res.redirect(route.redirect); };
     }

     var url = '/' + route.name + '.html';
     return function (req, res, next) {
         req.url = url;
         next();
     };
 }

 /**
  * Export a new instance
  */
 module.exports = function (route) {
     return new Handler(route);
 };