fix(jsonschema): Declare output properties as required

Author: VincentLanglet

src/JsonSchema/SchemaFactory.php

@@ -143,12 +143,18 @@ public function buildSchema(string $className, string $format = 'json', string $
         foreach ($this->propertyNameCollectionFactory->create($inputOrOutputClass, $options) as $propertyName) {
             $propertyMetadata = $this->propertyMetadataFactory->create($inputOrOutputClass, $propertyName, $options);
 
-            if (false === $propertyMetadata->isReadable() && false === $propertyMetadata->isWritable()) {
+            if (
+                Schema::TYPE_INPUT === $type && false === $propertyMetadata->isWritable()
+                || Schema::TYPE_OUTPUT === $type && false === $propertyMetadata->isReadable()
+            ) {
                 continue;
             }
 
             $normalizedPropertyName = $this->nameConverter ? $this->nameConverter->normalize($propertyName, $inputOrOutputClass, $format, $serializerContext) : $propertyName;
-            if ($propertyMetadata->isRequired() && !$isJsonMergePatch) {
+
+            // Property should be considered as required for output since they are "always" in the response body.
+            // @see https://github.com/api-platform/core/issues/7457
+            if (Schema::TYPE_OUTPUT === $type || $propertyMetadata->isRequired() && !$isJsonMergePatch) {
                 $definition['required'][] = $normalizedPropertyName;
             }
 

tests/Functional/JsonSchema/JsonLdJsonSchemaTest.php

@@ -81,6 +81,7 @@ public function testSubSchemaJsonLd(): void
                             '$ref' => '#/definitions/TestEntity.jsonld-read',
                         ]),
                     ],
+                    'required' => ['id', 'description', 'tests', 'nonResourceTests', 'type'],
                 ]),
             ],
         ]);
@@ -105,6 +106,7 @@ public function testSubSchemaJsonLd(): void
                     ],
                 ]),
             ],
+            'required' => ['id', 'nullableString', 'nullableInt'],
         ]);
 
         $expectedTestEntitySchema = new \ArrayObject([
@@ -132,6 +134,7 @@ public function testSubSchemaJsonLd(): void
                             ],
                         ]),
                     ],
+                    'required' => ['id', 'nullableString', 'nullableInt'],
                 ]),
             ],
         ]);

tests/Functional/OpenApiTest.php

@@ -138,6 +138,7 @@ public function testErrorsAreDocumented(): void
                 ['$ref' => '#/components/schemas/HydraItemBaseSchema'],
                 [
                     'type' => 'object',
+                    'required' => ['title', 'detail', 'status', 'instance', 'type', 'description'],
                     'properties' => [
                         'title' => [
                             'readOnly' => true,
@@ -243,6 +244,7 @@ public function testHasSchemasForMultipleFormats(): void
             ['$ref' => '#/components/schemas/HydraItemBaseSchema'],
             [
                 'type' => 'object',
+                'required' => ['id'],
                 'properties' => [
                     'id' => ['type' => 'string'],
                 ],
@@ -326,7 +328,25 @@ public function testRetrieveTheOpenApiDocumentation(): void
         $this->assertArrayHasKey('put', $json['paths']['/api/custom-call/{id}']);
 
         $this->assertArrayHasKey('id', $json['components']['schemas']['Dummy']['properties']);
-        $this->assertSame(['name'], $json['components']['schemas']['Dummy']['required']);
+        $this->assertSame([
+            'id',
+            'name',
+            'alias',
+            'foo',
+            'description',
+            'dummy',
+            'dummyBoolean',
+            'dummyDate',
+            'dummyFloat',
+            'dummyPrice',
+            'relatedDummy',
+            'relatedDummies',
+            'jsonData',
+            'arrayData',
+            'name_converted',
+            'relatedOwnedDummy',
+            'relatedOwningDummy',
+        ], $json['components']['schemas']['Dummy']['required']);
         $this->assertArrayHasKey('genderType', $json['components']['schemas']['Person']['properties']);
         $this->assertEquals([
             'default' => 'male',