Set an external reference for an upgrade

Overview

Use the setExternalRef method in conjunction with setSubscriptionUpgrade.

Parameters

Parameters	Type/Description
sessionID	Required (string)
	Session identifier, the output of the Login method. Include sessionID into all your requests. Avangate throws an exception if the values are incorrect. The sessionID expires in 10 minutes.
ExternalRef	Required (string)
	External reference you control.

Response

Boolean

true or false depending on whether or not the operation succeeded.

Request


<?php
$host   = "https://api.avangate.com";
$client = new SoapClient($host . "/soap/4.0/?wsdl", array(
    'location' => $host . "/soap/4.0/",
    "stream_context" => stream_context_create(array(
        'ssl' => array(
            'verify_peer' => false,
            'verify_peer_name' => false
        )
    ))
));

function hmac($key, $data)
{
    $b = 64; // byte length for md5
    if (strlen($key) > $b) {
        $key = pack("H*", md5($key));
    }
    
    $key    = str_pad($key, $b, chr(0x00));
    $ipad   = str_pad('', $b, chr(0x36));
    $opad   = str_pad('', $b, chr(0x5c));
    $k_ipad = $key ^ $ipad;
    $k_opad = $key ^ $opad;
    return md5($k_opad . pack("H*", md5($k_ipad . $data)));
}
$merchantCode = "YOUR_MERCHANT_CODE";// your account's merchant code available in the 'System settings' area of the cPanel: https://secure.avangate.com/cpanel/account_settings.php
$key = "YOUR_SECRET_KEY";// your account's secret key available in the 'System settings' area of the cPanel: https://secure.avangate.com/cpanel/account_settings.php
$now          = gmdate('Y-m-d H:i:s'); //date_default_timezone_set('UTC')
$string = strlen($merchantCode) . $merchantCode . strlen($now) . $now;
$hash   = hmac($key, $string);
try {
    $sessionID = $client->login($merchantCode, $now, $hash);
}
catch (SoapFault $e) {
    echo "Authentication: " . $e->getMessage();
    exit;
}
$ExternalReference = '9F4154733C';
try {
    $extRef = $client->setExternalRef($sessionID, $ExternalReference);
}
catch (SoapFault $e) {
    echo "extRef: " . $e->getMessage();
    exit;
}
var_dump("extRef", $extRef);