middleware class for guzzlehttp

guzzle-history-mw.php

<?php

use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseInterface;
use GuzzleHttp\HandlerStack;
use GuzzleHttp\Handler\CurlHandler;
use GuzzleHttp\Client;

class History
{
	private $int = 0;
	private $history = [];

	public function getHistory()
	{
		return $this->history;
	}

	private function increment()
	{
		$this->int++;
	}

	private function saveResponse(ResponseInterface $response)
	{
		$this->history[$this->int]['response'] = (clone $response);
		$this->increment();
	}

	private function saveRequest(RequestInterface $request)
	{
		$this->history[$this->int]['request'] = (clone $request);
	}

	public function __invoke(callable $handler)
	{
		return function (RequestInterface $request, array $options) use ($handler) {
			// save request
			$this->saveRequest($request);
			// save response
			return $handler($request, $options)->then(function (ResponseInterface $response) {
				$this->saveResponse($response);
			});
		};
	}
}

$history = new History;

$stack = new HandlerStack();
$stack->setHandler(new CurlHandler());
$stack->push($history);

$client = new Client([
	'handler' => $stack
]);

$client->post('https://httpbin.org/status/200', [
	'body' => '{"key": "val"}'
]);

var_dump($history->getHistory());