const https = require("https"); // requiring https module

const fs = require("fs"); // requiring fs module

const Stream = require("stream").Transform;

const options = {

hostname: "api.nasa.gov", // nasa api

port: 443, // tcp port

path: "/planetary/apod?api_key=DEMO_KEY&date=2019-08-08", // path from which image is extracted

method: "GET"

};

let wholedata = "";

const request = https.request(options, function (res) {

res.on("data", function (chunk) {

wholedata += chunk; // we get data in chunks or packets so we are adding it to get wholedata

});

res.on("end", function () {

const JSONobj = JSON.parse(wholedata); // parsing data into object form

const path = JSONobj.url;

const img = https.request(path, function (res) {

const data = new Stream(); // creating new stream

res.on("data", function (chunk) {

data.push(chunk);

});

res.on("end", function () {

fs.writeFileSync("./resources/img/file.jpg", data.read()); // saving image in file.jpg file

});

});

img.end();

});

});

request.end(); // ending request