A "frameworkless" http-server - using naive code (mixed concerns)

mixed-concerns-frameworkless-http-server.js

//code                                                concerns
//-------------------------------------------------------------------
console.log('starting greeter');                     //binary+logging

require('http').createServer((req, res) => {         //binary+app
  const [action] = req.url.slice(1).match(/[^\/]+/); //route

  switch(true) {                                     //route
    case action == 'status':                         //webCtrl
      return res.end('i\'m alive');                  //view+webCtrl
      
    case action == 'greet':                          //webCtrl
      const name = url.slice(7) || 'stranger';       //webCtrl
      console.log('greeting', { name })              //logging
      return res.end(`hello, ${name}`);              //view+webCtrl
      
    default:                                         //route
      console.log('no such url', { url: req.url });  //logging
      res.statusCode = 404;                          //webCtrl
      res.end('supports: /greet or /status');        //view+webCtrl
  }                                                  //route
}).listen(                                           //binary+app
  3000,                                              //binary 
  err => console.log(err || "Greeter on port 3000"), //binary+logging
);