How to stream/pipe response object from Zombie.js

Question

How can I download a file with Zombie.js with a web app that uses http-equiv meta tag to emulate the Refresh HTTP header?

In essence how do you download/stream/pipe a downloadable resource that is loaded after sometime have passed and not via a direct download link.

I was thinking I could do it with the Zombie.js Pipeline... but the docs on that are pretty senseless to a zombiejs newbie

Answer 1

Can be used to download BINARY FILES

var fs = require('fs');
var URL = require('url');
var Request = require('request'); // Named 'Request' to prevent conflict with zombie's 'request' object
var Browser = require('zombie'), browser = new Browser();

browser.on('request', function (request) {

  // let's pullover for a download incase we find our request signboard :)
  if (request.url.indexOf('https://matchingString') == 0) {

    console.log('Beginning download in a flash...');

    var 
    parsedURL = URL.parse(request.url), 
    cookies = browser.cookies, 
    cookieHeader = cookies.serialize(parsedURL.hostname, parsedURL.pathname);

    if (cookieHeader) request.headers.append('Cookie', cookieHeader);

    var writeStream = fs.createWriteStream(pathToFileYetToBeWritten);

    writeStream
    .on('error', function(err) {
        console.error(err);
    })
    .on('finish', function() {
        console.log('finished writing file');
    });

    Request({
        method: request.method, 
        uri: request.url, 
        headers: request.headers.toObject(), 
        proxy: browser.proxy, 
        body: request.body, 
        jar: false, 
        followRedirect: false, 
        strictSSL: browser.strictSSL, 
        localAddress: browser.localAddress || 0
    })
    .on('error', function(err) {
        console.error(err);
    })
    .pipe(writeStream);

}

});



browser.visit(url, function () {

browser.wait(6000); // Wait only if you need to

});