Download Images With node.js

All of a sudden /me gets silly and crazy thoughts to do useless tasks that just pleases me only!

Here is one such task, the code below downloads images from a given URI to the filesystem.

Prerequisites

• node.js

~~$bash < <(curl http://h3manth.com/njs) ~~

• request and cheerio npm install cheerio npm install request

The script

function getImages(uri) {

var request = require('request');
var url = require('url');
var cheerio = require('cheerio');
path = require('path')
var fs = require('fs');

request(uri, function (error, response, body) {
    if (!error && response.statusCode == 200) {
        $ = cheerio.load(body)
        imgs = $('img').toArray()
        console.log("Downloading...")
        imgs.forEach(function (img) {
            //console.log(img.attribs.src)
            process.stdout.write(".");
            img_url = img.attribs.src
            if (/^https?:\/\//.test(img_url)) {
                img_name = path.basename(img_url)
                request(img_url).pipe(fs.createWriteStream(img_name))
            }
        })
        console.log("Done!")
    }
})

} getImages(“http://imgur.com/gallery”)

Yes the same code can be extended to download different types of data/media :)