programmatically login and search for stuff on amazon using casperjs - more to come soon

readme.md

Installation

brew install https://raw.github.com/mxcl/homebrew/8f7a1311af77b13b2bd5cc0d760290a320024525/Library/Formula/casperjs.rb

Running

casperjs index.js [email protected] --password=supersecret "annoyatron"
casperjs index.js [email protected] --password=supersecret "http://www.amazon.com/ThinkGeek-The-Ringtone-Annoy-a-tron/dp/B00C9CYS1Y/"

index.js

/* require, encodeURI  */

var casper = require('casper').create();

var email = casper.cli.get('email');
var password = casper.cli.get('password');
var target = casper.cli.get(0);

function isUrl(text) {
    var pattern = new RegExp('^(https?:\\/\\/)?' + // protocol
			     '((([a-z\\d]([a-z\\d-]*[a-z\\d])*)\\.)+[a-z]{2,}|' + // domain name
			     '((\\d{1,3}\\.){3}\\d{1,3}))' + // OR ip (v4) address
			     '(?::\\d{2,5})?' + // port
			     '(?:/[^\\s]*)?$', 'i'); // path

    return pattern.test(text);
}

if (!email) throw 'missing email';
if (!password) throw 'missing password';
if (!target) throw 'provide a keyword to search or url of an item';

casper.userAgent('Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/38.0.2125.111 Safari/537.36');
casper.on('step.error complete.error', function(error) {
    throw error;
});

var url = 'https://www.amazon.com/ap/signin?_encoding=UTF8&openid.assoc_handle=usflex&openid.claimed_id=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0%2Fidentifier_select&openid.identity=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0%2Fidentifier_select&openid.mode=checkid_setup&openid.ns=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0&openid.ns.pape=http%3A%2F%2Fspecs.openid.net%2Fextensions%2Fpape%2F1.0&openid.pape.max_auth_age=0&openid.return_to=https%3A%2F%2Fwww.amazon.com%2Fgp%2Fyourstore%2Fhome%3Fie%3DUTF8%26ref_%3Dnav_signin';

casper.start(url, function() {
    this.fill('form[name="signIn"]', {
	email: email,
	password: password
    }, true);
});

casper.then(function() {
    this.capture('login.png');
});

if (isUrl(target)) {
    casper.thenOpen(target);
} else {
    casper.thenOpen('http://www.amazon.com/s/?sf=fedaps&keywords=' + encodeURI(target), function() {
	this.echo(this.getTitle());
	this.capture('results.png');

	this.click('#resultsCol ul li a');
    });
}

casper.then(function() {
    this.echo(this.getTitle());
    this.capture('item.png');

    this.echo(this.evaluate(function() {
	return document.location.href;
    }));
});
 
casper.run();

thanks a ton, this is exactly what I needed and it seems to work really well !!!