State of PSR-15

[Woody Gilk]

Hello FIG & company,

I wanted to send a quick progress report on PSR-15. Life has been busy and the working group is doing its best to finish this up.

The first order of business is addressing the concerns brought up by Rasmus and Michael in this thread:

https://groups.google.com/d/msg/php-fig/B3jtdJA7-6w/jzgSPrpYAQAJ

PSR-15 will define HandlerInterface, MiddlewareInterface, and DelegateInterface. These will be two separate packages (names subject to change):

psr/http-server-handler (handler)

psr/http-server-middleware (middleware + delegate, depends on handler)

The HandlerInterface signature will be:

__invoke(ServerRequestInterface $request): ResponseInterface

The MiddlewareInterface signature will be:

process(ServerRequestInterface $request, DelegateInterface $delegate): ResponseInterface

The DelegateInterface will simply be an extension of HandlerInterface. (Are we certain we need delegate?)

As such, a middleware would look something like this:

function process(ServerRequestInterface $request, DelegateInterface $delegate)

{

    if ($this->isNotValid($request)) {

        // create ResponseInterface error

        return $response;

    }

    // all good, continue processing

    return $delegate($request);

}

As always, feedback and thoughts on this proposal are appreciated.

--
Woody Gilk
http://about.me/shadowhand

[Oscar Otero]

I really like this change and see a lot of potential to HandlerInterface. In my opinion, DelegateInterface could be removed and HandlerInterface used instead. I don’t see any value having two interfaces doing the same.

Regards.

Oscar Otero.

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