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<?php declare(strict_types=1); |
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namespace ApiClients\Foundation\Transport; |
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use ApiClients\Foundation\Middleware\Locator\Locator; |
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use ApiClients\Foundation\Middleware\MiddlewareRunner; |
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use Clue\React\Buzz\Browser; |
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use Psr\Http\Message\RequestInterface; |
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use Psr\Http\Message\ResponseInterface; |
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use React\EventLoop\LoopInterface; |
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use React\Promise\PromiseInterface; |
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use React\Stream\ReadableStreamInterface; |
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use RingCentral\Psr7\Uri; |
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use Throwable; |
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use function React\Promise\reject; |
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use function React\Promise\resolve; |
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final class Client implements ClientInterface |
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{ |
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const DEFAULT_OPTIONS = [ |
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Options::SCHEMA => 'https', |
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Options::PATH => '/', |
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Options::HEADERS => [], |
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]; |
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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 Locator |
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*/ |
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protected $locator; |
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/** |
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* @var Browser |
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*/ |
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protected $browser; |
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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 string[] |
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*/ |
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protected $middleware = []; |
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/** |
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* @param LoopInterface $loop |
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* @param Locator $locator |
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* @param Browser $buzz |
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* @param array $options |
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*/ |
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public function __construct( |
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LoopInterface $loop, |
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Locator $locator, |
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Browser $buzz, |
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array $options = [] |
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) { |
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$this->loop = $loop; |
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$this->locator = $locator; |
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$this->browser = $buzz; |
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$this->options = $options + self::DEFAULT_OPTIONS; |
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if (isset($this->options[Options::MIDDLEWARE])) { |
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$this->middleware = $this->options[Options::MIDDLEWARE]; |
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} |
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} |
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/** |
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* @param RequestInterface $request |
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* @param array $options |
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* @return PromiseInterface |
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*/ |
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public function request(RequestInterface $request, array $options = []): PromiseInterface |
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{ |
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$body = $request->getBody(); |
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if ($body instanceof ReadableStreamInterface) { |
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$body->pause(); |
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} |
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$options = $this->applyRequestOptions($options); |
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$request = $this->applyApiSettingsToRequest($request, $options); |
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$executioner = $this->constructMiddlewares($options); |
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return $executioner->pre($request)->then(function (RequestInterface $request) use ($options) { |
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$body = $request->getBody(); |
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if ($body instanceof ReadableStreamInterface) { |
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$this->loop->futureTick(function () use ($body) { |
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$body->resume(); |
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}); |
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} |
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return resolve($this->browser->send( |
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$request |
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)); |
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}, function (ResponseInterface $response) { |
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return resolve($response); |
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})->then(function (ResponseInterface $response) use ($executioner) { |
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return $executioner->post($response); |
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})->otherwise(function (Throwable $throwable) use ($executioner) { |
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return reject($executioner->error($throwable)); |
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}); |
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} |
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public function applyRequestOptions(array $options): array |
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{ |
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if (!isset($this->options[Options::DEFAULT_REQUEST_OPTIONS])) { |
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return $options; |
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} |
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return array_merge_recursive( |
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$this->options[Options::DEFAULT_REQUEST_OPTIONS], |
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$options |
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); |
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} |
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protected function constructMiddlewares(array $options): MiddlewareRunner |
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{ |
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$set = $this->middleware; |
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if (isset($options[Options::MIDDLEWARE])) { |
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$set = $this->combinedMiddlewares($options[Options::MIDDLEWARE]); |
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} |
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$args = []; |
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$args[] = $options; |
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foreach ($set as $middleware) { |
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$args[] = $this->locator->get($middleware); |
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} |
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return new MiddlewareRunner(...$args); |
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} |
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protected function combinedMiddlewares(array $extraMiddlewares): array |
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{ |
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$set = $this->middleware; |
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foreach ($extraMiddlewares as $middleware) { |
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if (in_array($middleware, $set, true)) { |
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continue; |
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} |
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$set[] = $middleware; |
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} |
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return $set; |
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} |
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protected function applyApiSettingsToRequest(RequestInterface $request, array $options): RequestInterface |
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{ |
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$options = array_replace_recursive($this->options, $options); |
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$uri = $request->getUri(); |
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if (strpos((string)$uri, '://') === false) { |
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$uri = Uri::resolve( |
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new Uri( |
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$options[Options::SCHEMA] . |
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'://' . |
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$options[Options::HOST] . |
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$options[Options::PATH] |
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), |
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$request->getUri() |
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); |
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} |
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foreach ($options[Options::HEADERS] as $key => $value) { |
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$request = $request->withAddedHeader($key, $value); |
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} |
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return $request->withUri($uri); |
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} |
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} |
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php-api-clients /
transport
