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<?php |
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declare(strict_types=1); |
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namespace Cerbero\LazyJsonPages\Middleware; |
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use Cerbero\LazyJsonPages\Services\TapCallbacks; |
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use Closure; |
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use GuzzleHttp\Exception\RequestException; |
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use GuzzleHttp\Promise\Create; |
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use GuzzleHttp\Promise\PromiseInterface; |
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use Psr\Http\Message\RequestInterface; |
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use Psr\Http\Message\ResponseInterface; |
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/** |
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* The middleware to handle an HTTP request before and after it is sent. |
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*/ |
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final class Tap |
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{ |
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/** |
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* The HTTP request. |
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*/ |
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private RequestInterface $request; |
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/** |
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* The Guzzle client configuration. |
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* |
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* @var array<string, mixed> |
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*/ |
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private array $config; |
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/** |
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* Instantiate the class statically to tap once. |
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*/ |
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public static function once(?Closure $onRequest = null, ?Closure $onResponse = null, ?Closure $onError = null): self |
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{ |
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$callbacks = new TapCallbacks(); |
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$onRequest && $callbacks->onRequest($onRequest); |
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$onResponse && $callbacks->onResponse($onResponse); |
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$onError && $callbacks->onError($onError); |
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return new self($callbacks); |
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} |
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/** |
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* Instantiate the class. |
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*/ |
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public function __construct(private readonly TapCallbacks $callbacks) {} |
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/** |
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* Handle an HTTP request before and after it is sent. |
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* |
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* @param callable(RequestInterface, array<string, mixed>): PromiseInterface $handler |
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*/ |
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public function __invoke(callable $handler): Closure |
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{ |
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return function (RequestInterface $request, array $config) use ($handler) { |
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$this->request = $request; |
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$this->config = $config; |
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foreach ($this->callbacks->onRequestCallbacks() as $callback) { |
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$callback($request, $config); |
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} |
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return $handler($request, $config) |
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->then($this->handleResponse(...)) |
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->otherwise($this->handleError(...)); |
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}; |
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} |
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/** |
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* Handle the given response. |
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*/ |
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private function handleResponse(ResponseInterface $response): ResponseInterface |
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{ |
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foreach ($this->callbacks->onResponseCallbacks() as $callback) { |
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$callback($response, $this->request, $this->config); |
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} |
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return $response; |
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} |
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/** |
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* Handle the given transaction error. |
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*/ |
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private function handleError(mixed $reason): PromiseInterface |
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{ |
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$exception = Create::exceptionFor($reason); |
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$response = $reason instanceof RequestException ? $reason->getResponse() : null; |
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foreach ($this->callbacks->onErrorCallbacks() as $callback) { |
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$callback($exception, $this->request, $response, $this->config); |
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} |
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return Create::rejectionFor($reason); |
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} |
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} |
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cerbero90 /
lazy-json-pages
This check looks for private methods that have been defined, but are not used inside the class.