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<?php declare(strict_types = 1);
namespace jschreuder\Middle\ServerMiddleware;
use Interop\Http\ServerMiddleware\DelegateInterface;
use Interop\Http\ServerMiddleware\MiddlewareInterface;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
class JsonRequestParserMiddleware implements MiddlewareInterface
{
/** @var string[] */
private $jsonContentTypes;
public function __construct(array $jsonContentTypes = null)
if (is_null($jsonContentTypes)) {
$jsonContentTypes = ['application/json'];
}
$this->jsonContentTypes = $jsonContentTypes;
public function process(ServerRequestInterface $request, DelegateInterface $delegate): ResponseInterface
if (in_array($request->getHeaderLine('Content-Type'), $this->jsonContentTypes, true)) {
$request = $request->withParsedBody($this->parseBody($request));
return $delegate->process($request);
private function parseBody(ServerRequestInterface $request) : array
$parsedBody = json_decode($request->getBody()->getContents(), true);
if (json_last_error() !== JSON_ERROR_NONE) {
throw new \InvalidArgumentException('Could not decode JSON body: ' . json_last_error_msg());
return $parsedBody;
jschreuder /
Middle
