Ok, despite some prototype related issues, I do not understand how you want
to stack multiple RequestMiddlewareInterface instances?
For example one which adds the computation time, but only if the next
middleware (e.g. the AuthHeaderMiddleware) returned with status === 200.
On Tuesday, February 21, 2017 at 8:09:36 PM UTC+1, John Porter wrote:
>
> Woody,
>
> Here's an example meeting your criteria (I think):
>
> <?php
>
> namespace Example;
>
> use Psr\Http\Message\MessageInterface;
> use Psr\Http\Message\RequestInterface;
> use Psr\Http\Middleware\RequestMiddlewareInterface;
> use Psr\Http\Middleware\ResponseFactoryInterface;
>
> class AuthHeaderMiddleware implements RequestMiddlewareInterface,
> ResponseFactoryInterface
> {
> public function parseRequest(RequestInterface $request):
> MessageInterface
> {
> if ($request->getMethod() === 'POST' && $request->hasHeader(
> 'authorization')) {
> return $request; // Passthrough here
> }
>
> $response = $this->createResponseInstance();
>
> return $response->withStatus(401); // short circuit handled by
> middleware runner implementing ExchangeInterface
> }
> }
>
>
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