ページから画像をダウンロード

var client = require('cheerio-httpcli');
var request = require('request');
var fs = require('fs');
var URL = require('url');

var Dir = "./files/img";
if (!fs.existsSync(Dir)) {
  fs.mkdirSync(Dir);
}

var url = "http://www.pet-home.jp/cats/";
var param = {};
client.fetch(url, param, function(err, $, res) {
  if (err) { console.log("error"); return; }
  $(".contribute_result .img_container:first-child img").each(function(i) {
    var src = $(this).attr('src');
    src = URL.resolve(url, src);
    var file_name = URL.parse(src).pathname;
    file_name = Dir + "/" + file_name.replace(/[^a-zA-Z0-9\.]+/g, '-');
    request(src).pipe(fs.createWriteStream(file_name));//ダウンロードファイル書き込み
  });
});