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hitbtc php example
<?php
namespace Hitbtc;
/**
* show off @method
*
* @method string balance() balance( array $params )
* @method string ordersActive() ordersActive( array $params )
* @method string new_order() new_order( array $params )
* @method string cancel_order() cancel_order( array $params )
* @method string trades() trades( array $params )
* @method string ordersRecent() ordersRecent( array $params )
*
* @package Hitbtc
*/
class TradingApi
{
CONST HITBTC_API_URL = 'http://demo-api.hitbtc.com';
CONST HITBTC_TRADING_API_URL_SEGMENT = '/api/1/trading/';
private $_key, $_secret;
private $_availableMethods = array(
'balance',
'orders/active',
'new_order',
'cancel_order',
'trades',
'orders/recent',
);
private $_postMethods = array(
'new_order',
'cancel_order'
);
public function __construct($key, $secret)
{
$this->_key = $key;
$this->_secret = $secret;
$this->_nonce = time()*1E3;
}
public function __call($name, $arguments) {
$methodPathParts = preg_split('/(?=[A-Z])/', $name);
$methodPathParts = array_map(
function($pathSegment) { return strtolower($pathSegment); },
$methodPathParts
);
$method = implode('/', $methodPathParts);
if(!in_array($method, $this->_availableMethods)){
throw new \Exception( 'Method that you try to call doesn\'t exists!' );
}
return $this->_request($method, $arguments, in_array($method, $this->_postMethods));
}
private function _request($method, $arguments, $isPost = FALSE)
{
$requestUri = self::HITBTC_TRADING_API_URL_SEGMENT
. $method
. '?nonce=' . $this->_getNonce()
. '&apikey=' . $this->_key;
$arguments = sizeof($arguments) > 0 ? $arguments[0] : array();
$params = http_build_query($arguments);
if (strlen($params) && $isPost === FALSE) {
$requestUri .= '&' . $params;
}
$ch = curl_init();
curl_setopt_array($ch, array(
CURLOPT_URL => self::HITBTC_API_URL . $requestUri,
CURLOPT_CONNECTTIMEOUT => 10,
CURLOPT_RETURNTRANSFER => 1
));
if($isPost) {
curl_setopt($ch, CURLOPT_POST, TRUE);
curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
}
curl_setopt($ch, CURLOPT_HTTPHEADER, array('X-Signature: ' . $this->_signature($requestUri, $isPost ? $params : '')));
$result = curl_exec($ch);
curl_close($ch);
return $result;
}
private function _signature($uri, $postData)
{
return strtolower(hash_hmac('sha512', $uri . $postData, $this->_secret));
}
private function _getNonce()
{
return $this->_nonce++;
}
}
/**
* Usage example
**/
function randomString($length) {
$key = '';
$keys = array_merge(range(0, 9), range('a', 'z'));
for ($i = 0; $i < $length; $i++) {
$key .= $keys[array_rand($keys)];
}
return $key;
}
/**
* Create instance and provide your api and secret keys as params
**/
$interface = new \Hitbtc\TradingApi('xxx', 'yyy');
/**
* Try to place order
**/
$newOrderId = randomString(rand(8, 30));
echo $interface->new_order(array(
'clientOrderId' => $newOrderId,
'symbol' => 'BTCUSD',
'side' => 'buy',
'price' => 100.01, // $100.01
'quantity' => 1, // 1 lot => 0.01 BTC
'type' => 'limit',
'timeInForce' => 'GTC'
));
/**
* Try to cancel order
**/
echo $interface->cancel_order(array(
'cancelRequestClientOrderId' => randomString(rand(8, 30)),
'clientOrderId' => $newOrderId,
'symbol' => 'BTCUSD',
'side' => 'buy'
));
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