Update server.js

src/server.js

@@ -1,20 +1,3 @@
-const express = require('express');
-const app = express();
-const port = 3000;
-
-app.use(express.urlencoded({extended: true}));
-
-
-app.post('/echo', (req, res) => {
-  const userInput = req.body.name;
-
-  res.send(`Hello, ${userInput}!`);
-});
-
-app.listen(port, () => {
-  console.log(`Example app listening at http://localhost:${port}`);
-});
-
 const http = require('http');
 const url = require('url');
 const querystring = require('querystring');
@@ -48,7 +31,7 @@
   if (userId === query.user_id) {
     res.statusCode = 200;
     res.setHeader('Content-Type', 'text/html');
     res.end(`<h1>Welcome, ${query.username}!</h1>`);
   } else {
     res.statusCode = 403;
     res.setHeader('Content-Type', 'text/plain');