Zoho creator integration with another webservice

Hi guys, i would like to put my app to integrate with one of the delivery service provider. without much knowledge on the API , i am here to seek for help as i cant find much information online.

what i want to do is to pump data from Zoho Creator to another webservice called Easyparcel. and i have got the required documentation and API key generated by the Easyparcel.

one of the action sample as below

<?php

$domain = "http://demo.connect.easyparcel.my/?ac=";

$action = "EPRateCheckingBulk";

$postparam = array(

'api' => ‘xxxxxxx’,

'bulk' => array(

array(

'pick_code' => "10050",

'pick_state' => "png",

'pick_country' => "MY",

'send_code' => "11950",

'send_state' => "png",

'send_country' => "MY",

'weight' => 5,

'width' => 0,

'length' => 0,

'height' => 0,

'date_coll' => date("Y-m-d")

array(

'pick_code' => "14300",

'pick_state' => "nt",

'pick_country' => "MY",

'send_code' => "81100",

'send_state' => "jhr",

'send_country' => "MY",

'weight' => 10,

'width' => 0,

'length' => 0,

'height' => 0,

'date_coll' => date("Y-m-d")

)

);

$url = $domain.$action;

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $url);

curl_setopt($ch, CURLOPT_POST, 1);

curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($postparam));

curl_setopt($ch, CURLOPT_HEADER, 0);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);

ob_start();

$return = curl_exec($ch);

ob_end_clean();

curl_close($ch);

$json = json_decode($return);

echo "<pre>"; print_r($json); echo "</pre>";

but where should i place this code in Zoho creator to test it out?

it would be great if anyone can shed some light and i don'd mind paying development fee for this as my gratitude.

thanks,

Jeff