From 2983ba303545320c7f5a8c8d54290b257aa60e57 Mon Sep 17 00:00:00 2001
From: Edgaras Levinson <edgaras@eneba.com>
Date: Mon, 19 Jan 2026 15:55:45 +0200
Subject: [PATCH] fix: preserve zero fraction during response json encoding

Fix zero fraction floats (1.0) being incorectly encoded as ints (1).
---
 src/Controller/GraphController.php                |  4 +++-
 .../App/config/preserveFloats/config.yml          | 15 +++++++++++++++
 .../preserveFloats/mapping/RootQuery.types.yml    |  7 +++++++
 .../Functional/Controller/GraphControllerTest.php | 10 ++++++++++
 4 files changed, 35 insertions(+), 1 deletion(-)
 create mode 100644 tests/Functional/App/config/preserveFloats/config.yml
 create mode 100644 tests/Functional/App/config/preserveFloats/mapping/RootQuery.types.yml

diff --git a/src/Controller/GraphController.php b/src/Controller/GraphController.php
index f1985ab6b..8e3583e71 100644
--- a/src/Controller/GraphController.php
+++ b/src/Controller/GraphController.php
@@ -63,7 +63,9 @@ private function createResponse(Request $request, ?string $schemaName, bool $bat
                 return new JsonResponse('', 405);
             }
             $payload = $this->processQuery($request, $schemaName, $batched);
-            $response = new JsonResponse($payload, 200);
+            $response = new JsonResponse('', 200);
+            $response->setEncodingOptions(JsonResponse::DEFAULT_ENCODING_OPTIONS|JSON_PRESERVE_ZERO_FRACTION);
+            $response->setData($payload);
         }
         $this->addCORSHeadersIfNeeded($response, $request);
 
diff --git a/tests/Functional/App/config/preserveFloats/config.yml b/tests/Functional/App/config/preserveFloats/config.yml
new file mode 100644
index 000000000..0fc6e5b19
--- /dev/null
+++ b/tests/Functional/App/config/preserveFloats/config.yml
@@ -0,0 +1,15 @@
+imports:
+    - { resource: ../config.yml }
+    - { resource: ../exception/services.yml }
+
+overblog_graphql:
+    definitions:
+        class_namespace: "Overblog\\GraphQLBundle\\PreserveFloats\\__DEFINITIONS__"
+        schema:
+            query: RootQuery
+            mutation: RootQuery
+        mappings:
+            types:
+                -
+                    type: yaml
+                    dir: "%kernel.project_dir%/config/preserveFloats/mapping"
diff --git a/tests/Functional/App/config/preserveFloats/mapping/RootQuery.types.yml b/tests/Functional/App/config/preserveFloats/mapping/RootQuery.types.yml
new file mode 100644
index 000000000..621d9a10d
--- /dev/null
+++ b/tests/Functional/App/config/preserveFloats/mapping/RootQuery.types.yml
@@ -0,0 +1,7 @@
+RootQuery:
+    type: object
+    config:
+        fields:
+            float:
+                type: Float
+                resolve: '1.0'
diff --git a/tests/Functional/Controller/GraphControllerTest.php b/tests/Functional/Controller/GraphControllerTest.php
index b302a095d..eedbce3c2 100644
--- a/tests/Functional/Controller/GraphControllerTest.php
+++ b/tests/Functional/Controller/GraphControllerTest.php
@@ -164,6 +164,16 @@ public function testEndpointActionWithInvalidVariables(): void
         $client->request('GET', '/', ['query' => $query, 'variables' => '"firstFriends": 2}']);
     }
 
+    public function testEndpointActionPreservesFloats(): void
+    {
+        $client = static::createClient(['test_case' => 'preserveFloats']);
+        $this->disableCatchExceptions($client);
+
+        $client->request('GET', '/', ['query' => 'query { float }'], [], ['CONTENT_TYPE' => 'application/graphql;charset=utf8', 'HTTP_Origin' => 'http://example.com']);
+        $result = $client->getResponse()->getContent();
+        $this->assertSame(['data' => ['float' => 1.0]], json_decode($result, true), $result);
+    }
+
     public function testMultipleEndpointActionWithUnknownSchemaName(): void
     {
         $this->expectException(NotFoundHttpException::class);