parking domain api not work return code 1

[pavel]

hi I try this code for park domain
<?php

// Server credentials
$vst_hostname = 'mydomain.com';
$vst_username = 'admin';
$vst_password = 'mypassword';
$vst_returncode = 'yes';
$vst_command = 'v-add-web-domain-alias';

// New Domain
$username = 'admin';
$domain = 'mydomain';
$aliases = 'park domain';

// Prepare POST query
$postvars = array(
'user' => $vst_username,
'password' => $vst_password,
'returncode' => $vst_returncode,
'cmd' => $vst_command,
'arg1' => $username,
'arg2' => $domain
);
$postdata = http_build_query($postvars);

// Send POST query via cURL
$postdata = http_build_query($postvars);
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, 'https://' . $vst_hostname . ':8083/api/');
curl_setopt($curl, CURLOPT_RETURNTRANSFER,true);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, $postdata);
$answer = curl_exec($curl);

// Check result
if($answer == 0) {
echo "Domain has been successfuly created\n";
} else {
echo "Query returned error code: " .$answer. "\n";
}
?>


but this give me return code 1. what field I missing there?

[li41]

$postvars = array(
'user' => $vst_username,
'password' => $vst_password,
'returncode' => $vst_returncode,
'cmd' => $vst_command,
'arg1' => $username,
'arg2' => $domain,
'arg3' => $aliases //here
);