server.js

const url = require('url');
const http = require ('http');
const port= 8000;

const requestHandler = (request, response) => {
    const parsedUrl = url.parse(request.url, true);
    
    const person = {
        name : parsedUrl.query.name,
        city : parsedUrl.query.city
    }

    console.log(request.url);
    if (request.url ==='/'){
        response.end(`Hello Node.js Server !`);
    }
    else if (request.url==='/about'){
        response.end('this demonstrates routing with Node.JS');
    }
    else {
        if (person.name && person.city) 
        {
        response.end(`Hello ${person.name} from ${person.city} !`);
        }
        else
        response.end(`Hello, beautiful Stranger ! Please provide name and city parameters ...`);
    }
}
    
    const server = http.createServer(requestHandler);
server.listen(port, (err)=> {
    if (err)
    console.log("Something bad Happened");
    else
    console.log(`server listening on port ${port}`)
});