PHP SDK for KuCoin Futures API

The detailed document https://docs.kucoin.com/futures/, in order to receive the latest API change notifications, please Watch this repository.

Requirements

Install

Install package via Composer.

composer require "kucoin/kucoin-futures-php-sdk:~1.0.0"

Usage

Choose environment

use KuCoin\Futures\SDK\KuCoinFuturesApi;
// Switch to the sandbox environment
KuCoinFuturesApi::setBaseUri('https://api-sandbox-futures.kucoin.com');

Debug mode & logging

use KuCoin\Futures\SDK\KuCoinFuturesApi;
// Debug mode will record the logs of API and WebSocket to files in the directory "KuCoinFuturesApi::getLogPath()" according to the minimum log level "KuCoinFuturesApi::getLogLevel()".
KuCoinFuturesApi::setDebugMode(true);

// Logging in your code
// KuCoinFuturesApi::setLogPath('/tmp');
// KuCoinFuturesApi::setLogLevel(Monolog\Logger::DEBUG);
KuCoinFuturesApi::getLogger()->debug("I'm a debug message");

Examples

See the test case for more examples.

Example of API without authentication

use KuCoin\Futures\SDK\PublicApi\Time;

$api = new Time();
$timestamp = $api->timestamp();
var_dump($timestamp);

Example of API with authentication

Note

To reinforce the security of the API, KuCoin upgraded the API key to version 2.0, the validation logic has also been changed. It is recommended to create(https://www.kucoin.com/account/api) and update your API key to version 2.0. The API key of version 1.0 will be still valid until May 1, 2021

use KuCoin\Futures\SDK\Auth;
use KuCoin\Futures\SDK\PrivateApi\Account;
use KuCoin\Futures\SDK\Exceptions\HttpException;
use KuCoin\Futures\SDK\Exceptions\BusinessException;

// Auth version v2 (recommend)
$auth = new Auth('key', 'secret', 'passphrase', Auth::API_KEY_VERSION_V2);
// Auth version v1
// $auth = new Auth('key', 'secret', 'passphrase');

$api = new Account($auth);

try {
    $result = $api->getOverview();
    var_dump($result);
} catch (HttpException $e) {
    var_dump($e->getMessage());
} catch (BusinessException $e) {
    var_dump($e->getMessage());
}

Example of WebSocket feed

use KuCoin\Futures\SDK\Auth;
use KuCoin\Futures\SDK\KuCoinFuturesApi;
use KuCoin\Futures\SDK\PrivateApi\WebSocketFeed;
use Ratchet\Client\WebSocket;
use React\EventLoop\Factory;
use React\EventLoop\LoopInterface;

$auth = null;
// Need to pass the Auth parameter when subscribing to a private channel($api->subscribePrivateChannel()).
// Auth version v2 (recommend)
// $auth = new Auth('key', 'secret', 'passphrase', Auth::API_KEY_VERSION_V2);
// Auth version v1
// $auth = new Auth('key', 'secret', 'passphrase');
$api = new WebSocketFeed($auth);

// Use a custom event loop instance if you like
//$loop = Factory::create();
//$loop->addPeriodicTimer(1, function () {
//    var_dump(date('Y-m-d H:i:s'));
//});
//$api->setLoop($loop);

$query = ['connectId' => uniqid('', true)];
$channels = [
    ['topic' => '/market/ticker:KCS-BTC'], // Subscribe multiple channels
    ['topic' => '/market/ticker:ETH-BTC'],
];

$api->subscribePublicChannels($query, $channels, function (array $message, WebSocket $ws, LoopInterface $loop) use ($api) {
    var_dump($message);

    // Subscribe another channel
    // $ws->send(json_encode($api->createSubscribeMessage('/contractMarket/ticker:ETHUSDTM')));

    // Unsubscribe the channel
    // $ws->send(json_encode($api->createUnsubscribeMessage('/contractMarket/ticker:XBTUSDM')));

    // Stop loop
    // $loop->stop();
}, function ($code, $reason) {
    echo "OnClose: {$code} {$reason}\n";
});

⚡️Coroutine HTTP client for asynchronous IO

See the benchmark, almost 20x faster than curl.

pecl install swoole
composer require swlib/saber

use KuCoin\Futures\SDK\Auth;
use KuCoin\Futures\SDK\Http\SwooleHttp;
use KuCoin\Futures\SDK\KuCoinFuturesApi;
use KuCoin\Futures\SDK\PrivateApi\Order;
use KuCoin\Futures\SDK\PublicApi\Time;

// Require PHP 7.1+ and Swoole 2.1.2+
// Require running in cli mode

go(function () {
    $api = new Time(null, new SwooleHttp);
    $timestamp = $api->timestamp();
    var_dump($timestamp);
});

go(function () {
    // Auth version v2 (recommend)
    $auth = new Auth('key', 'secret', 'passphrase', Auth::API_KEY_VERSION_V2);
    // Auth version v1
    // $auth = new Auth('key', 'secret', 'passphrase');
    $api = new Order($auth, new SwooleHttp);
    // Create 50 orders CONCURRENTLY in 1 second
    for ($i = 0; $i < 50; $i++) {
        go(function () use ($api, $i) {
            $order = [
                'clientOid' => uniqid(),
                'price'     => '1',
                'size'      => '1',
                'symbol'    => 'BTC-USDT',
                'type'      => 'limit',
                'side'      => 'buy',
                'remark'    => 'ORDER#' . $i,
            ];
            try {
                $result = $api->create($order);
                var_dump($result);
            } catch (\Throwable $e) {
                var_dump($e->getMessage());
            }
        });
    }
});

API list

Run tests

Modify your API key in phpunit.xml first.

# Add your API configuration items into the environmental variable first
export API_BASE_URI=https://api-futures.kucoin.com
export API_KEY=key
export API_SECRET=secret
export API_PASSPHRASE=passphrase
export API_KEY_VERSION=2
export API_DEBUG_MODE=1

composer test

License

MIT