mass download videos from youtube

mass-youtube-dl.js

var HOST = 'https://###.firebaseio.com/items.json'
var fs = require('fs')
var datapath = __dirname + '/videos'
var exec = require("child_process").execSync
var request = require('request')

request(HOST, function (err, res, body) {
    if (res.statusCode == 200) {
        var result = JSON.parse(body);
        for (var key in result) {
            if (result.hasOwnProperty(key)) {
                var temp = result[key];
                for (var item in temp) { 
                    console.log('now downloading ' + item)
                    var cmd = 'youtube-dl https://www.youtube.com/watch\?v\=' + item + ' --format mp4';
                    console.log(cmd)
                    exec(cmd, function (error, stdout, stderr) {
                        console.log('Starting download')
                        console.log(stdout);
                    });

                }
            }
        }
    }
});