server.js

// we need this module to create the server and handel the request from the user 
const http = require('http'); 

// here is the host where the server will work 
const hostname = '127.0.0.1'; 
// you can use any port but the likely for node.js is 3000
const port = 3000; 

// here is a call back function we will talk about it later but this function called when the user requset the server URL
const server = http.createServer((req, res) => {
  // request status code 200 on connection success will get back tothe user 
  res.statusCode = 200;
  
  // the header for the request 
  res.setHeader('Content-Type', 'text/plain');
  
  // resposne to clinet 
  res.end('Hello, World!\n');
  
  // log  in the server 
  console.log('hello world')
});

// start the server function when we run node server in the shell or command prompt
server.listen(port, hostname, () => {
  console.log(`Server running at http://${hostname}:${port}/`);
});