Implement an interface type: Content: Blog

Author: jerowork

src/Infrastructure/Api/Http/GraphQL/Resolver/Query/ContentQuery.php

@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Jerowork\ExampleApplicationGraphqlAttributeSchema\Infrastructure\Api\Http\GraphQL\Resolver\Query;
+
+use Jerowork\ExampleApplicationGraphqlAttributeSchema\Domain\Blog\BlogRepository;
+use Jerowork\ExampleApplicationGraphqlAttributeSchema\Infrastructure\Api\Http\GraphQL\Type\BlogType;
+use Jerowork\ExampleApplicationGraphqlAttributeSchema\Infrastructure\Api\Http\GraphQL\Type\ContentType;
+use Jerowork\GraphqlAttributeSchema\Attribute\Query;
+use Symfony\Component\DependencyInjection\Attribute\Autoconfigure;
+
+#[Autoconfigure(public: true)]
+final readonly class ContentQuery
+{
+    public function __construct(
+        private BlogRepository $blogRepository,
+    ) {}
+
+    #[Query]
+    public function content(string $id): ContentType
+    {
+        // Other types can be added here, e.g. a page type
+        $blog = $this->blogRepository->getById($id);
+
+        return new BlogType($blog);
+    }
+}

src/Infrastructure/Api/Http/GraphQL/Type/BlogType.php

@@ -6,7 +6,6 @@
 
 use DateTimeImmutable;
 use Jerowork\ExampleApplicationGraphqlAttributeSchema\Domain\Blog\Blog;
-use Jerowork\ExampleApplicationGraphqlAttributeSchema\Infrastructure\Api\Http\GraphQL\Loader\AuthorTypeLoader;
 use Jerowork\GraphqlAttributeSchema\Attribute\Cursor;
 use Jerowork\GraphqlAttributeSchema\Attribute\Field;
 use Jerowork\GraphqlAttributeSchema\Attribute\Option\ListType;
@@ -16,7 +15,7 @@
 
 #[Exclude]
 #[Type]
-final readonly class BlogType
+final readonly class BlogType implements ContentType
 {
     public function __construct(
         public Blog $blog,
@@ -41,7 +40,6 @@ public function getTitle(): string
         return $this->blog->title;
     }
 
-    #[Field(type: AuthorType::class, deferredTypeLoader: AuthorTypeLoader::class)]
     public function getAuthor(): string
     {
         return $this->blog->authorId;

src/Infrastructure/Api/Http/GraphQL/Type/ContentType.php

@@ -0,0 +1,16 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Jerowork\ExampleApplicationGraphqlAttributeSchema\Infrastructure\Api\Http\GraphQL\Type;
+
+use Jerowork\ExampleApplicationGraphqlAttributeSchema\Infrastructure\Api\Http\GraphQL\Loader\AuthorTypeLoader;
+use Jerowork\GraphqlAttributeSchema\Attribute\Field;
+use Jerowork\GraphqlAttributeSchema\Attribute\InterfaceType;
+
+#[InterfaceType]
+interface ContentType
+{
+    #[Field(type: AuthorType::class, deferredTypeLoader: AuthorTypeLoader::class)]
+    public function getAuthor(): string;
+}