Use the FoxyCart datafeed to push your orders to Zapier for processing and submitting to third-party API's.

PHP, cURL

<?php
//Zapier Webhook Script by David Hollander, www.sparkweb.net
//Version 1.0, 2014-10-07
 
//Setup Instructions
//-------------------------------------------------------------------------------------------------------------------
 
//Go to this url to enable the Zapier app: https://zapier.com/developer/invite/6466/2e388f1a688ec8ed2976c539d9ab71c4/
 
//Get this field from the FoxyCart > Advanced Settings page
$foxycart_api_key = "";
 
//You'll be presented with a url when setting up your Zapier integration. Enter it here:
$zapier_static_webhook_url = "";
 
//This file needs to be saved on your webserver. Then go to Advanced Settings and check the box to enable store datafeed.
//Put the url for this file in the datafeed box.
 
//When Zapier asks you to create a brand new transaction in FoxyCart, just refeed a transaction.
//You can do this by expanding the transaction on the FoxyCart transactions page.
 
//-------------------------------------------------------------------------------------------------------------------
 
 
 
 
//Processing The Datafeed
if (isset($_POST["FoxyData"])) {
 
	//Make sure we have everything we need
	if (!$foxycart_api_key) {
		die("Please enter your FoxyCart API key.");
	} elseif (!$zapier_static_webhook_url) {
		die("Please enter your static webhook url from Zapier.");
	}
 
	//Decrypt the Datafeed
	$decrypted = foxycart_decrypt($_POST["FoxyData"]);
	$xml_string = simplexml_load_string($decrypted, NULL, LIBXML_NOCDATA);
	$json = json_encode($xml_string);
 
	//Send to Zapier
	$ch = curl_init();
	curl_setopt_array($ch, array(
		CURLOPT_URL => $zapier_static_webhook_url,
		CURLOPT_FAILONERROR => 1,
		CURLOPT_RETURNTRANSFER => 1,
		CURLOPT_TIMEOUT => 5,
		CURLOPT_POSTFIELDS => $json,
		CURLOPT_POST => true,
	));
	$result = curl_exec($ch);
	curl_close($ch);
 
	//Process Response
	$json = json_decode($result, 1);
 
	//No JSON Returned
	if (!is_array($json)) {
		die("Invalid Response: $result");
 
	//Failure
	} elseif ($json['status'] != "success") {
		die("Unsuccessful Status: $result");
 
	//All Good!
	} else {
		die("foxy");
	}
 
} else {
	die('No Content Received From Datafeed');
}
 
 
 
 
//Decrypt Data From Source
function foxycart_decrypt($src) {
    global $foxycart_api_key;
	return rc4crypt::decrypt($foxycart_api_key, urldecode($src));
}
 
 
// ======================================================================================
// RC4 ENCRYPTION CLASS
// Do not modify.
// ======================================================================================
/**
 * RC4Crypt 3.2
 *
 * RC4Crypt is a petite library that allows you to use RC4
 * encryption easily in PHP. It's OO and can produce outputs
 * in binary and hex.
 *
 * (C) Copyright 2006 Mukul Sabharwal [http://mjsabby.com]
 *     All Rights Reserved
 *
 * @link http://rc4crypt.devhome.org
 * @author Mukul Sabharwal <mjsabby@gmail.com>
 * @version $Id: class.rc4crypt.php,v 3.2 2006/03/10 05:47:24 mukul Exp $
 * @copyright Copyright &copy; 2006 Mukul Sabharwal
 * @license http://www.gnu.org/copyleft/gpl.html
 * @package RC4Crypt
 */
class rc4crypt {
	/**
	 * The symmetric encryption function
	 *
	 * @param string $pwd Key to encrypt with (can be binary of hex)
	 * @param string $data Content to be encrypted
	 * @param bool $ispwdHex Key passed is in hexadecimal or not
	 * @access public
	 * @return string
	 */
	public static function encrypt ($pwd, $data, $ispwdHex = 0) {
		if ($ispwdHex) $pwd = @pack('H*', $pwd); // valid input, please!
 		$key[] = '';
		$box[] = '';
		$cipher = '';
		$pwd_length = strlen($pwd);
		$data_length = strlen($data);
		for ($i = 0; $i < 256; $i++) {
			$key[$i] = ord($pwd[$i % $pwd_length]);
			$box[$i] = $i;
		}
		for ($j = $i = 0; $i < 256; $i++) {
			$j = ($j + $box[$i] + $key[$i]) % 256;
			$tmp = $box[$i];
			$box[$i] = $box[$j];
			$box[$j] = $tmp;
		}
		for ($a = $j = $i = 0; $i < $data_length; $i++) {
			$a = ($a + 1) % 256;
			$j = ($j + $box[$a]) % 256;
			$tmp = $box[$a];
			$box[$a] = $box[$j];
			$box[$j] = $tmp;
			$k = $box[(($box[$a] + $box[$j]) % 256)];
			$cipher .= chr(ord($data[$i]) ^ $k);
		}
		return $cipher;
	}
	/**
	 * Decryption, recall encryption
	 *
	 * @param string $pwd Key to decrypt with (can be binary of hex)
	 * @param string $data Content to be decrypted
	 * @param bool $ispwdHex Key passed is in hexadecimal or not
	 * @access public
	 * @return string
	 */
	public static function decrypt ($pwd, $data, $ispwdHex = 0) {
		return rc4crypt::encrypt($pwd, $data, $ispwdHex);
	}
}