feat(Request): add generic PSR-Request

src/Request/PsrRequest.php

@@ -0,0 +1,50 @@
+<?php
+/**
+ * @author @jayS-de <jens.schulze@commercetools.de>
+ */
+
+namespace Commercetools\Core\Request;
+
+use Commercetools\Core\Client\JsonEndpoint;
+use Commercetools\Core\Model\Common\Context;
+use Commercetools\Core\Response\ResourceResponse;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+use Commercetools\Core\Model\Common\JsonObject;
+use Commercetools\Core\Response\ApiResponseInterface;
+use Commercetools\Core\Model\MapperInterface;
+
+/**
+ * @package Commercetools\Core\Request
+ *
+ * @method JsonObject mapResponse(ApiResponseInterface $response)
+ * @method JsonObject mapFromResponse(ApiResponseInterface $response, MapperInterface $mapper = null)
+ */
+class PsrRequest extends AbstractApiRequest
+{
+    /**
+     * @var RequestInterface
+     */
+    private $request;
+
+    public function __construct(RequestInterface $request, Context $context = null)
+    {
+        $this->request = $request;
+        parent::__construct(new JsonEndpoint(''), $context);
+    }
+
+    public static function ofRequest(RequestInterface $request, Context $context = null)
+    {
+        return new static($request, $context);
+    }
+
+    public function buildResponse(ResponseInterface $response)
+    {
+        return new ResourceResponse($response, $this, $this->getContext());
+    }
+
+    public function httpRequest()
+    {
+        return $this->request;
+    }
+}