Как на Node.js парсить фотографии?

var express = require('express');
var app = express();
var request = require('request');
var cheerio = require('cheerio');
var port = 8080;

var url = "https://www.nasa.gov/rss/dyn/lg_image_of_the_day.rss";

var content = [];

request(url, function(err, res, body) {
  var $ = cheerio.load(body);
	  $('enclosure').each(function(i, elem) {
	  	content.push($(this).attr('url'));
	 });
    for (var i = 0; i<content.length; i++) {     
      console.log(content[i]);   
    }
});

app.listen(port);