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<?php |
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namespace Laratrade\GDAX\WebSocket; |
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use Exception; |
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use Illuminate\Contracts\Events\Dispatcher as DispatcherContract; |
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use Laratrade\GDAX\WebSocket\Contracts\Subscriber as SubscriberContract; |
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use Psr\Log\LoggerInterface as LoggerContract; |
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use Ratchet\Client\WebSocket; |
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use Ratchet\RFC6455\Messaging\MessageInterface as MessageContract; |
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use React\Promise\PromiseInterface as PromiseContract; |
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class Subscriber implements SubscriberContract |
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{ |
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/** |
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* The logger instance. |
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* |
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* @var LoggerContract |
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*/ |
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protected $logger; |
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/** |
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* The dispatcher instance. |
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* |
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* @var DispatcherContract |
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*/ |
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protected $dispatcher; |
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/** |
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* The event mappings. |
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* |
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* @var array |
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*/ |
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protected $events; |
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/** |
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* Create a new subscriber instance. |
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* |
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* @param LoggerContract $logger |
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* @param DispatcherContract $dispatcher |
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* @param array $events |
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*/ |
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public function __construct(LoggerContract $logger, DispatcherContract $dispatcher, array $events) |
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{ |
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$this->logger = $logger; |
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$this->dispatcher = $dispatcher; |
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$this->events = $events; |
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} |
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/** |
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* Handle the connect event. |
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* |
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* @param WebSocket $webSocket |
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* |
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* @return void |
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*/ |
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public function onConnect(WebSocket $webSocket): void |
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{ |
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$this->logger->info('websocket connect'); |
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$webSocket->on('message', [$this, 'onMessage']); |
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$webSocket->on('close', [$this, 'onDisconnect']); |
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$webSocket->send(json_encode([ |
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'type' => 'subscribe', |
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'product_ids' => [], |
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'channels' => [ |
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'ticker', |
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], |
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])); |
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} |
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/** |
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* Handle the message event. |
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* |
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* @param MessageContract $message |
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* |
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* @return void |
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*/ |
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public function onMessage(MessageContract $message): void |
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{ |
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$payload = json_decode($message->getPayload()); |
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$this->logger->info('websocket message', compact('payload')); |
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if (!isset($payload->type) || !isset($this->events[$payload->type])) { |
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return; |
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} |
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$this->dispatcher->dispatch(new $this->events[$payload->type]($payload)); |
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} |
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/** |
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* Handle the disconnect event. |
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* |
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* @param int|null $code |
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* @param string|null $reason |
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* |
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* @return void |
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*/ |
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public function onDisconnect(int $code = null, string $reason = null): void |
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{ |
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$this->logger->warning('websocket disconnect', compact('code', 'reason')); |
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} |
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/** |
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* Handle the error event. |
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* |
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* @param Exception $exception |
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* |
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* @return void |
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*/ |
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public function onError(Exception $exception): void |
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{ |
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$this->logger->error('websocket error', compact('exception')); |
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} |
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/** |
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* Register the listeners for the subscriber. |
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* |
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* @param PromiseContract $connection |
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*/ |
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public function subscribe(PromiseContract $connection): void |
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{ |
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$connection->then([$this, 'onConnect'], [$this, 'onError']); |
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} |
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} |
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laratrade /
gdax-websocket
