<?php
	echo "Start API Call ...<br/>";
	echo "<hr noshade/>";
	
	// Set the timezone to UTC for 1WorldSync API call
	date_default_timezone_set("UTC");
    $currentDateTime = new DateTime();
    echo "Current DateTime: [".$currentDateTime->format('Y-m-d H:i:s')."]<br/>";

	$appID = "abc123xy"; // Please update with your APP ID here (8 characters)
	echo "AppID: [".$appID."]<br/>";
	
	$secretKey = "qwertyuiosdfghjkfghjkfghj1232321"; // Please update with your Secret Key here (32 characters)
	$gln = "1234567890123"; // Please update with your 13-digit GLN here (13 digits)
	echo "GLN: [".$gln."]<br/>";
			
	$timeStamp = $currentDateTime->format('Y-m-d\TH:i:s\Z');
	$timeStampEnc = urlencode($timeStamp);
	echo "TimeStampEnc: [".$timeStampEnc."]<br/>";

	$uri = "/V1/product/fetch?timestamp=".$timeStamp."&pageSize=1";
	
	$hash = hash_hmac('sha256', $uri, $secretKey, true);
	$hashInBase64 = base64_encode($hash);
	echo "HashBase64: [".$hashInBase64."]<br/>";
	
	$hashInBase64URIencoded = urlencode($hashInBase64);
	echo "HashEnc: [".$hashInBase64URIencoded."]<br/>";
	echo "URL: [".'https://content1-api.1worldsync.com/V1/product/fetch?timestamp='.$timeStampEnc.'&pageSize=1'."]<br/>";

	echo "<hr noshade/>";
	
	$url = 'https://content1-api.1worldsync.com/V1/product/fetch?timestamp='.$timeStampEnc.'&pageSize=1';
	$curl = curl_init();
	curl_setopt_array($curl, 
	array
	(
	  CURLOPT_URL => 'https://content1-api.1worldsync.com/V1/product/fetch?timestamp='.$timeStampEnc.'&pageSize=1',
	  CURLOPT_RETURNTRANSFER => true,
	  CURLOPT_ENCODING => '',
	  CURLOPT_MAXREDIRS => 10,
	  CURLOPT_TIMEOUT => 0,
	  CURLOPT_FOLLOWLOCATION => true,
	  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
	  CURLOPT_CUSTOMREQUEST => 'POST',
	  CURLOPT_POSTFIELDS =>
	  '{ }',
	   CURLOPT_HTTPHEADER => 
	   array
	   (
		   'Content-Type: application/json',
		   'appId: '.$appID,
		   'hashcode: '.$hashInBase64
	   ),
	));

	$response = curl_exec($curl);

	curl_close($curl);
	echo "API Response: [".$response."]<br/>";
	echo "<hr noshade/>";

	echo "End API Call<br/>";

?>