svasva

<?php
function api_query($http_method, $method, array $req = array()) {
	$key = '';
	$secret = '';

	$post_data = $http_method == 'POST' ? json_encode($req) : '';
	$sign = hash_hmac('sha512', $post_data, $secret);

	$headers = array(
		'Content-type: application/json',