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<?php
declare(strict_types=1);
namespace Codenixsv\BitfinexWs\Request;
use Ratchet\RFC6455\Messaging\Frame;
/**
* Class SubscribeBooks
* @package Codenixsv\BitfinexWs\Request
*/
class SubscribeBooks implements Request
{
/** @var string */
private $symbol;
private $precision;
private $frequency;
private $length;
* SubscribeBooks constructor.
* @param string $symbol
* @param string $precision
* @param string $frequency
* @param string $length
public function __construct(string $symbol, string $precision, string $frequency, string $length)
$this->symbol = $symbol;
$this->precision = $precision;
$this->frequency = $frequency;
$this->length = $length;
}
* @return array
public function getPayload(): array
return [
'event' => 'subscribe',
'channel' => 'book',
'symbol' => $this->symbol,
'prec' => $this->precision,
'freq' => $this->frequency,
'len' => $this->length,
];
* @return Frame
public function getFrame(): Frame
return new Frame(json_encode($this->getPayload()));
codenix-sv /
bitfinex-api-ws
