<?php namespace GuzzleHttp\Handler; use GuzzleHttp\Promise\PromiseInterface; use GuzzleHttp\RequestOptions; use Psr\Http\Message\RequestInterface; /** * Provides basic proxies for handlers. * * @final */ class Proxy { /** * Sends synchronous requests to a specific handler while sending all other * requests to another handler. * * @param callable(\Psr\Http\Message\RequestInterface, array): \GuzzleHttp\Promise\PromiseInterface $default Handler used for normal responses * @param callable(\Psr\Http\Message\RequestInterface, array): \GuzzleHttp\Promise\PromiseInterface $sync Handler used for synchronous responses. * * @return callable(\Psr\Http\Message\RequestInterface, array): \GuzzleHttp\Promise\PromiseInterface Returns the composed handler. */ public static function wrapSync(callable $default, callable $sync): callable { return static function (RequestInterface $request, array $options) use ($default, $sync): PromiseInterface { return empty($options[RequestOptions::SYNCHRONOUS]) ? $default($request, $options) : $sync($request, $options); }; } /** * Sends streaming requests to a streaming compatible handler while sending * all other requests to a default handler. * * This, for example, could be useful for taking advantage of the * performance benefits of curl while still supporting true streaming * through the StreamHandler. * * @param callable(\Psr\Http\Message\RequestInterface, array): \GuzzleHttp\Promise\PromiseInterface $default Handler used for non-streaming responses * @param callable(\Psr\Http\Message\RequestInterface, array): \GuzzleHttp\Promise\PromiseInterface $streaming Handler used for streaming responses * * @return callable(\Psr\Http\Message\RequestInterface, array): \GuzzleHttp\Promise\PromiseInterface Returns the composed handler. */ public static function wrapStreaming(callable $default, callable $streaming): callable { return static function (RequestInterface $request, array $options) use ($default, $streaming): PromiseInterface { return empty($options['stream']) ? $default($request, $options) : $streaming($request, $options); }; } }