chubbyphp-psr7-middleware-singlepass-to-multipass-adapter

Description

This adapter can be used, if you dlike to use single pass (no response argument given) middleware within a multipass environment as for example slim or zend-expressive are.

Requirements

• php: ~5.4
• psr/http-message: ~1.0

Installation

Through Composer as chubbyphp/chubbyphp-psr7-middleware-singlepass-to-multipass-adapter.

composer require chubbyphp/chubbyphp-psr7-middleware-singlepass-to-multipass-adapter "~1.0"

Usage

The variable $next, within the single pass middleware arguments will always be a \Closure from the adapter.

<?php

use Chubbyphp\Psr7SinglePassToMultiPassAdapter\Psr7SinglePassToMultiPassAdapter;

$existingSinglePassMiddleware = function (RequestInterface $request, callable $next) {
    $request = $request->withHeader('X-Custom', '1');

    $response = $next($request);

    $body = $response->getBody();
    $body->seek(0, SEEK_END);
    $body->write('<!-- provided by x-custom -->');

    return $response;
};

$adapter = new Psr7SinglePassToMultiPassAdapter($existingSinglePassMiddleware);

$response = $adapter($request, $response, $next);

Copyright

Dominik Zogg 2016