Mutations

classes/Dummy.php

@@ -0,0 +1,74 @@
+<?php namespace GermanAirlinesVa\Graphql\Classes;
+
+use Illuminate\Support\Str;
+use Illuminate\Http\Request;
+use GraphQL\Type\Definition\ResolveInfo;
+use Nuwave\Lighthouse\Subscriptions\Subscriber;
+use Nuwave\Lighthouse\Schema\Types\GraphQLSubscription;
+use Nuwave\Lighthouse\Support\Contracts\GraphQLContext;
+
+class Dummy extends GraphQLSubscription
+{
+  /**
+   * Check if subscriber is allowed to listen to the subscription.
+   *
+   * @param  \Nuwave\Lighthouse\Subscriptions\Subscriber  $subscriber
+   * @param  \Illuminate\Http\Request  $request
+   * @return bool
+   */
+  public function authorize(Subscriber $subscriber, Request $request): bool
+  {
+    return true;
+  }
+
+  /**
+   * Filter which subscribers should receive the subscription.
+   *
+   * @param  \Nuwave\Lighthouse\Subscriptions\Subscriber  $subscriber
+   * @param  mixed  $root
+   * @return bool
+   */
+  public function filter(Subscriber $subscriber, $root): bool
+  {
+    return true;
+  }
+
+  /**
+   * Encode topic name.
+   *
+   * @param  \Nuwave\Lighthouse\Subscriptions\Subscriber  $subscriber
+   * @param  string  $fieldName
+   * @return string
+   */
+  public function encodeTopic(Subscriber $subscriber, string $fieldName): string
+  {
+    // Create a unique topic name based on the `author` argument
+    return Str::snake($fieldName);
+  }
+
+  /**
+   * Decode topic name.
+   *
+   * @param  string  $fieldName
+   * @param  \App\Post  $root
+   * @return string
+   */
+  public function decodeTopic(string $fieldName, $root): string
+  {
+    return Str::snake($fieldName);
+  }
+
+  /**
+   * Resolve the subscription.
+   *
+   * @param  \App\Post  $root
+   * @param  array<string, mixed>  $args
+   * @param  \Nuwave\Lighthouse\Support\Contracts\GraphQLContext  $context
+   * @param  \GraphQL\Type\Definition\ResolveInfo  $resolveInfo
+   * @return mixed
+   */
+  public function resolve($root, array $args, GraphQLContext $context, ResolveInfo $resolveInfo): array
+  {
+    return array($root);
+  }
+}

classes/SchemaSourceProvider.php

@@ -68,7 +68,7 @@ class SchemaSourceProvider implements LighthouseSchemaSourceProvider
   public function getSchemaString(): string
   {
     // root types
-    $schema = '
+    $schema = "
         type Query {
           dummy: Boolean
         }
@@ -76,7 +76,11 @@ class SchemaSourceProvider implements LighthouseSchemaSourceProvider
         type Mutation {
           dummy: Boolean
         }
-        ';
+
+        type Subscription {
+          dummy: Boolean @subscription(class: \"GermanAirlinesVa\\\\Graphql\\\\Classes\\\\Dummy\")
+        }
+        ";
     // schema
     $schema .= collect($this->getGraphMap())->implode('schema', '');
     return $schema;