Update serialization.md

core/serialization.md

@@ -41,6 +41,54 @@ feature of the Symfony Serializer component.
 In addition to groups, you can use any option supported by the Symfony Serializer. For example, you can use [`enable_max_depth`](https://symfony.com/doc/current/components/serializer.html#handling-serialization-depth)
 to limit the serialization depth.
 
+```php
+<?php
+// api/src/Entity/Book.php
+
+namespace App\Entity;
+
+use ApiPlatform\Core\Annotation\ApiResource;
+use Symfony\Component\Serializer\Annotation\Groups;
+use Symfony\Component\Serializer\Annotation\MaxDepth;
+
+#[ApiResource(
+    normalizationContext: ['groups' => 'read', 'enable_max_depth' => true],
+    denormalizationContext: ['groups' => ['write']],
+)]
+class Book
+{
+    #[Groups(["read", "write"])]
+    public $name;
+
+    #[Groups("write")]
+    #[MaxDepth(1)]
+    public $author;
+
+    // ...
+}
+```
+
+```yaml
+# api/config/api_platform/resources.yaml
+resources:
+    App\Entity\Book:
+        attributes:
+            normalization_context:
+                groups: ['read']
+                enable_max_depth: true
+            denormalization_context:
+                groups: ['write']
+
+# api/config/serialization/Book.yaml
+
+App\Entity\Book:
+    properties:
+        author:
+            groups: ['write']
+            max_depth: 1
+```
+
+
 ### Configuration
 
 Just like other Symfony and API Platform components, the Serializer component can be configured using annotations, XML