From 36bb3ca5dc861822b4d557d6c54c2ac8076c03fe Mon Sep 17 00:00:00 2001
From: marhub <hubert.m.j@gmail.com>
Date: Tue, 14 Jan 2020 19:02:26 +0100
Subject: [PATCH] Error on SLIM 4

When performing any valid request error ```{"errors":[{"message":"GraphQL Request must include at least one of those two parameters: \"query\" or \"queryId\"","extensions":{"category":"request"}}]}``` is returned.
I've narrowed this to $request->getParsedBody() returning empty array instead of null in slim 4 framework when parsed body is empty. This will fix this issue.
---
 src/Http/WebonyxGraphqlMiddleware.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Http/WebonyxGraphqlMiddleware.php b/src/Http/WebonyxGraphqlMiddleware.php
index 279787838d..d87eec2aba 100644
--- a/src/Http/WebonyxGraphqlMiddleware.php
+++ b/src/Http/WebonyxGraphqlMiddleware.php
@@ -76,7 +76,7 @@ public function process(ServerRequestInterface $request, RequestHandlerInterface
         }
 
         // Let's json deserialize if this is not already done.
-        if ($request->getParsedBody() === null) {
+        if (empty($request->getParsedBody())) {
             $content = $request->getBody()->getContents();
             $data = json_decode($content, true);