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<?php
declare(strict_types=1);
namespace Yiisoft\Yii\Web\Middleware;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\MiddlewareInterface;
use Psr\Http\Server\RequestHandlerInterface;
use Yiisoft\Http\Header;
final class JsonBodyParser implements MiddlewareInterface
{
private const DEFAULT_FLAGS = JSON_THROW_ON_ERROR | JSON_INVALID_UTF8_IGNORE;
private bool $assoc = true;
private int $depth = 512;
private int $options = self::DEFAULT_FLAGS;
public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
$contentType = $request->getHeaderLine(Header::CONTENT_TYPE);
if ($contentType && strpos(strtolower($contentType), 'application/json') !== false) {
$request = $request->withParsedBody(
$this->parse($request->getBody()->getContents())
);
}
return $handler->handle($request);
public function withAssoc(): self
$new = clone $this;
$new->assoc = true;
return $new;
public function withoutAssoc(): self
$new->assoc = false;
public function withDepth(int $value): self
$new->depth = $value;
public function withOptions(int $value): self
$new->options = self::DEFAULT_FLAGS | $value;
/**
* @return mixed
*/
private function parse(string $body)
$result = json_decode($body, $this->assoc, $this->depth, $this->options);
if (is_array($result) || is_object($result)) {
return $result;
return null;
yiisoft /
yii-web
