'use strict';

const https = require('https');

const fs = require('fs');

const url = 'https://ietf.org/';

https.get(url, res => {

console.log(res.req._header);

console.dir(res.headers);

if (res.statusCode !== 200) {

const { statusCode, statusMessage } = res;

console.log(`Status Code: ${statusCode} ${statusMessage}`);

return;

}

res.setEncoding('utf8');

const buffer = [];

res.on('data', chunk => {

buffer.push(chunk);

});

res.on('end', () => {

const data = buffer.join();

console.log({ size: data.length, chunks: buffer.length });

fs.writeFile('content.html', data, () => {

console.log('Saved to file: content.html');

});

});

});