From 394033c4a17c2359a0dbbfea7a4bcccd052b1233 Mon Sep 17 00:00:00 2001
From: "cristian.almohalla" <cristian.almohalla@pccomponentes.com>
Date: Tue, 29 Dec 2020 11:17:03 +0100
Subject: [PATCH] allow nullable response parameters

---
 src/OpenApi/OpenApiSchemaParser.php | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/src/OpenApi/OpenApiSchemaParser.php b/src/OpenApi/OpenApiSchemaParser.php
index 32b01e9..743dead 100644
--- a/src/OpenApi/OpenApiSchemaParser.php
+++ b/src/OpenApi/OpenApiSchemaParser.php
@@ -44,6 +44,11 @@ public function fromResponse(string $path, string $method, int $statusCode, stri
     private function extractData(array $data): array
     {
         $aux = [];
+
+        if (\array_key_exists('nullable', $data)) {
+            $data = $this->convertNullableTypeToJsonSchema($data);
+        }
+
         foreach ($data as $key => $elem) {
             if ('$ref' === $key) {
                 $aux = $this->findDefinition($elem);
@@ -116,4 +121,20 @@ private function assertContentTypeRoot(
             );
         }
     }
+
+    private function convertNullableTypeToJsonSchema(array $data): array
+    {
+        $data['oneOf'] = [
+            ['type' => null],
+        ];
+
+        if (\array_key_exists('type', $data)) {
+            $data['oneOf'][] = ['type' => $data['type']];
+            unset($data['type']);
+        }
+
+        unset($data['nullable']);
+
+        return $data;
+    }
 }