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<?php |
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declare(strict_types=1); |
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namespace WyriHaximus\ApiClient\Transport; |
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use GuzzleHttp\Client as GuzzleClient; |
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use GuzzleHttp\Psr7\Request; |
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use Psr\Http\Message\ResponseInterface; |
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use React\Cache\CacheInterface; |
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use React\EventLoop\LoopInterface; |
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use React\Promise\Deferred; |
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use React\Promise\FulfilledPromise; |
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use React\Promise\PromiseInterface; |
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use function React\Promise\reject; |
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use function React\Promise\resolve; |
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use function WyriHaximus\React\futureFunctionPromise; |
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class Client |
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{ |
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const DEFAULT_OPTIONS = [ |
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'schema' => 'https', |
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'path' => '/', |
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'user_agent' => 'WyriHaximus/php-api-client', |
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'headers' => [], |
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]; |
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/** |
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* @var GuzzleClient |
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*/ |
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protected $handler; |
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/** |
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* @var LoopInterface |
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*/ |
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protected $loop; |
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/** |
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* @var array |
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*/ |
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protected $options = []; |
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/** |
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* @var Hydrator |
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*/ |
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protected $hydrator; |
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/** |
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* @var CacheInterface |
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*/ |
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protected $cache; |
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public function __construct(LoopInterface $loop, GuzzleClient $handler, $options = []) |
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{ |
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$this->loop = $loop; |
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$this->handler = $handler; |
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$this->options = self::DEFAULT_OPTIONS + $options; |
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if (isset($this->options['cache']) && $this->options['cache'] instanceof CacheInterface) { |
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$this->cache = $this->options['cache']; |
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} |
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$this->hydrator = new Hydrator($this, $options); |
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} |
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public function request(string $path, bool $refresh = false): PromiseInterface |
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{ |
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if ($refresh) { |
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return $this->sendRequest($path); |
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} |
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return $this->checkCache($path)->otherwise(function () use ($path) { |
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return $this->sendRequest($path); |
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}); |
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} |
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protected function checkCache(string $path) |
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{ |
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if ($this->cache instanceof CacheInterface) { |
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return $this->cache->get($path)->then(function ($json) use ($path) { |
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return $this->jsonDecode($json); |
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}); |
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} |
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return reject(); |
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} |
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protected function sendRequest(string $path, string $method = 'GET'): PromiseInterface |
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{ |
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$deferred = new Deferred(); |
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$this->handler->sendAsync($this->createRequest($method, $path))->then(function (ResponseInterface $response) use ($deferred) { |
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$contents = $response->getBody()->getContents(); |
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$deferred->resolve($contents); |
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}, function ($error) use ($deferred) { |
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$deferred->reject($error); |
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}); |
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return $deferred->promise()->then(function ($json) use ($path) { |
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$this->cache->set($path, $json); |
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return $this->jsonDecode($json); |
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}); |
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} |
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protected function createRequest(string $method, string $path) |
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{ |
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$url = $this->options['schema'] . '://' . $this->options['host'] . $this->options['path'] . $path; |
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$headers = [ |
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'User-Agent' => $this->options['user_agent'], |
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]; |
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$headers += $this->options['headers']; |
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return new Request($method, $url, $headers); |
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} |
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protected function jsonDecode($json): PromiseInterface |
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{ |
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return futureFunctionPromise($this->loop, $json, function ($json) { |
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return json_decode($json, true); |
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}); |
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} |
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public function getHydrator(): Hydrator |
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{ |
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return $this->hydrator; |
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} |
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public function getLoop(): LoopInterface |
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{ |
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return $this->loop; |
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} |
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} |
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WyriHaximus /
php-api-client
