tghimanshu · April 16, 2019 15:21
diff --git a/first-node-app b/first-node-app
 // core node modules
 const http = require('http');
 const fs = require('fs');

 // creating a server
 const server = http.createServer((req, res) => {
    let url = req.url;
    let method = req.method;
    // for content in home page
    if (url === '/') {
        res.setHeader('Content-Type', 'text/html');
        res.write('<form action="/message" method="POST"><input type="text" name="message"><button type="submit">Submit</button></form>');
        return res.end();
    }
    // For Post requested Message Page
    if (url === "/message" && method === "POST") {
        const body = [];
        // get data and working on it
        req.on('data', chunk => {
            // console.log(chunk);
            body.push(chunk);
        }); // res on data
        return req.on('end', () => {
            // convert to readable
            let parsedBody = Buffer.concat(body).toString();
            // splitting and retriving the value of input
            let message = parsedBody.split('=')[1];
            // console.log(message);
            fs.writeFile('message.txt', message, err => {
                // redirect code
                res.statusCode = 302;
                res.setHeader('Location', '/');
                // always return response end so it stop execution
                return res.end();
            });//fs write code ends
        });// res ends
    }// message page code ends
    // if nothing matches underneath code executes
    res.setHeader('Content-Type', 'text/html');
    res.write('<html>');
    res.write('<head><title>Hello World!</title></head>');
    res.write('<body');
    res.write('<h1>Hello From My Node Server!</h1>');
    res.write('</body>');
    res.write('</html>');
    return res.end();
 });

 // To keep server running at port 3000
 server.listen(3000);
	// core node modules
	const http = require('http');
	const fs = require('fs');

	// creating a server
	const server = http.createServer((req, res) => {
	let url = req.url;
	let method = req.method;
	// for content in home page
	if (url === '/') {
	res.setHeader('Content-Type', 'text/html');
	res.write('<form action="/message" method="POST"><input type="text" name="message"><button type="submit">Submit</button></form>');
	return res.end();
	}
	// For Post requested Message Page
	if (url === "/message" && method === "POST") {
	const body = [];
	// get data and working on it
	req.on('data', chunk => {
	// console.log(chunk);
	body.push(chunk);
	}); // res on data
	return req.on('end', () => {
	// convert to readable
	let parsedBody = Buffer.concat(body).toString();
	// splitting and retriving the value of input
	let message = parsedBody.split('=')[1];
	// console.log(message);
	fs.writeFile('message.txt', message, err => {
	// redirect code
	res.statusCode = 302;
	res.setHeader('Location', '/');
	// always return response end so it stop execution
	return res.end();
	});//fs write code ends
	});// res ends
	}// message page code ends
	// if nothing matches underneath code executes
	res.setHeader('Content-Type', 'text/html');
	res.write('<html>');
	res.write('<head><title>Hello World!</title></head>');
	res.write('<body');
	res.write('<h1>Hello From My Node Server!</h1>');
	res.write('</body>');
	res.write('</html>');
	return res.end();
	});

	// To keep server running at port 3000
	server.listen(3000);