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| 1 | <?php |
| 2 | declare(strict_types=1); |
| 3 | /** |
| 4 | * Pop PHP Framework (https://www.popphp.org/) |
| 5 | * |
| 6 | * @link https://github.com/popphp/popphp-framework |
| 7 | * @author Nick Sagona, III <nick@popphp.org> |
| 8 | * @copyright Copyright (c) 2009-2026 Nick Sagona, III |
| 9 | * @license https://www.popphp.org/license New BSD License |
| 10 | */ |
| 11 | |
| 12 | /** |
| 13 | * @namespace |
| 14 | */ |
| 15 | namespace Pop\Http\Client\Middleware; |
| 16 | |
| 17 | use Psr\Http\Message\RequestInterface; |
| 18 | use Psr\Http\Message\ResponseInterface; |
| 19 | |
| 20 | /** |
| 21 | * Client middleware interface - a PSR-15-style interceptor for Client's outbound |
| 22 | * dispatch. Not a literal PSR-15 implementation: PSR-15's real interfaces are typed |
| 23 | * to ServerRequestInterface (server-side only) and cannot apply to a Client's |
| 24 | * outbound RequestInterface flow, so this mirrors PSR-15's shape with the request |
| 25 | * type swapped. |
| 26 | * |
| 27 | * @category Pop |
| 28 | * @package Pop\Http |
| 29 | * @author Nick Sagona, III <nick@popphp.org> |
| 30 | * @copyright Copyright (c) 2009-2026 Nick Sagona, III |
| 31 | * @license https://www.popphp.org/license New BSD License |
| 32 | * @version 6.0.0 |
| 33 | */ |
| 34 | interface MiddlewareInterface |
| 35 | { |
| 36 | |
| 37 | /** |
| 38 | * Process the request, optionally passing it (or a modified copy) to $handler |
| 39 | * to continue the chain, or returning a response directly to short-circuit |
| 40 | * |
| 41 | * Typed to the broader PSR-7 ResponseInterface for interface parity with |
| 42 | * RequestHandlerInterface::handle(), but for use with Pop\Http\Client, the |
| 43 | * response returned here (whether from $handler->handle() or a short-circuit) |
| 44 | * must be a Pop\Http\Client\Response (or something that satisfies it) - |
| 45 | * Client\Response is the concrete type this pipeline's terminal handler and |
| 46 | * Client's internals require, not an arbitrary ResponseInterface. Client |
| 47 | * enforces this at the end of the pipeline and throws a Client\Exception with |
| 48 | * a clear message if it's violated. |
| 49 | * |
| 50 | * @param RequestInterface $request |
| 51 | * @param RequestHandlerInterface $handler |
| 52 | * @return ResponseInterface |
| 53 | */ |
| 54 | public function process(RequestInterface $request, RequestHandlerInterface $handler): ResponseInterface; |
| 55 | |
| 56 | } |