[GraphQL] Fix introspection (graphql-php / GraphiQL)

composer.json

@@ -67,7 +67,7 @@
         "symfony/validator": "^3.3 || ^4.0",
         "symfony/web-profiler-bundle": "^3.3 || ^4.0",
         "symfony/yaml": "^3.3 || ^4.0",
-        "webonyx/graphql-php": "^0.10.2"
+        "webonyx/graphql-php": "^0.11.5"
     },
     "conflict": {
         "symfony/dependency-injection": "<3.4"

features/bootstrap/GraphqlContext.php

@@ -17,6 +17,7 @@
 use Behat\Gherkin\Node\PyStringNode;
 use Behatch\Context\RestContext;
 use Behatch\HttpCall\Request;
+use GraphQL\Type\Introspection;
 
 /**
  * Context for GraphQL.
@@ -95,6 +96,15 @@ public function ISendTheGraphqlRequestWithOperation(string $operation)
         $this->sendGraphqlRequest();
     }
 
+    /**
+     * @When I send the query to introspect the schema
+     */
+    public function ISendTheQueryToIntrospectTheSchema()
+    {
+        $this->graphqlRequest = ['query' => Introspection::getIntrospectionQuery()];
+        $this->sendGraphqlRequest();
+    }
+
     private function sendGraphqlRequest()
     {
         $this->request->setHttpHeader('Accept', null);

features/graphql/introspection.feature

@@ -9,20 +9,13 @@ Feature: GraphQL introspection support
     And the JSON node "errors[0].message" should be equal to "GraphQL query is not valid"
 
   Scenario: Introspect the GraphQL schema
-    When I send the following GraphQL request:
-    """
-    {
-      __schema {
-        types {
-          name
-        }
-      }
-    }
-    """
+    When I send the query to introspect the schema
     Then the response status code should be 200
     And the response should be in JSON
     And the header "Content-Type" should be equal to "application/json"
     And the JSON node "data.__schema.types" should exist
+    And the JSON node "data.__schema.queryType.name" should be equal to "Query"
+    And the JSON node "data.__schema.mutationType.name" should be equal to "Mutation"
 
   Scenario: Introspect types
     When I send the following GraphQL request:

features/graphql/mutation.feature

@@ -106,44 +106,6 @@ Feature: GraphQL mutation support
     And the JSON node "data.createDummy.arrayData[1]" should be equal to baz
     And the JSON node "data.createDummy.clientMutationId" should be equal to "myId"
 
-  Scenario: Create an item with an embedded field
-    When I send the following GraphQL request:
-    """
-    mutation {
-      createRelatedDummy(input: {_id: 2, symfony: "symfony", embeddedDummy: {dummyName: "Embedded"}, clientMutationId: "myId"}) {
-        id
-        clientMutationId
-      }
-    }
-    """
-    Then the response status code should be 200
-    And the response should be in JSON
-    And the header "Content-Type" should be equal to "application/json"
-    And the JSON node "data.createRelatedDummy.id" should be equal to "/related_dummies/2"
-    And the JSON node "data.createRelatedDummy.clientMutationId" should be equal to "myId"
-
-  Scenario: Create an item and update a nested resource through a mutation
-    When I send the following GraphQL request:
-    """
-    mutation {
-      createRelationEmbedder(input: {paris: "paris", krondstadt: "Krondstadt", anotherRelated: {id: 2, symfony: "laravel"}, clientMutationId: "myId"}) {
-        id
-        anotherRelated {
-          id
-          symfony
-        }
-        clientMutationId
-      }
-    }
-    """
-    Then the response status code should be 200
-    And the response should be in JSON
-    And the header "Content-Type" should be equal to "application/json"
-    And the JSON node "data.createRelationEmbedder.id" should be equal to "/relation_embedders/1"
-    And the JSON node "data.createRelationEmbedder.anotherRelated.id" should be equal to "/related_dummies/2"
-    And the JSON node "data.createRelationEmbedder.anotherRelated.symfony" should be equal to "laravel"
-    And the JSON node "data.createRelationEmbedder.clientMutationId" should be equal to "myId"
-
   Scenario: Delete an item through a mutation
     When I send the following GraphQL request:
     """

src/GraphQl/Type/SchemaBuilder.php

@@ -16,7 +16,6 @@
 use ApiPlatform\Core\Exception\ResourceClassNotFoundException;
 use ApiPlatform\Core\GraphQl\Resolver\Factory\ResolverFactoryInterface;
 use ApiPlatform\Core\GraphQl\Serializer\ItemNormalizer;
-use ApiPlatform\Core\GraphQl\Type\Definition\InputUnionType;
 use ApiPlatform\Core\GraphQl\Type\Definition\IterableType;
 use ApiPlatform\Core\Metadata\Property\Factory\PropertyMetadataFactoryInterface;
 use ApiPlatform\Core\Metadata\Property\Factory\PropertyNameCollectionFactoryInterface;
@@ -343,24 +342,13 @@ private function convertType(Type $type, bool $input = false, string $mutationNa
                 break;
             case Type::BUILTIN_TYPE_ARRAY:
             case Type::BUILTIN_TYPE_ITERABLE:
-                $graphqlType = $this->getIterableType();
+                if (!isset($this->graphqlTypes['#iterable'])) {
+                    $this->graphqlTypes['#iterable'] = new IterableType();
+                }
+                $graphqlType = $this->graphqlTypes['#iterable'];
                 break;
             case Type::BUILTIN_TYPE_OBJECT:
-                if ($input && $depth > 0) {
-                    if (!isset($this->graphqlTypes['#stringIterableUnionInput'])) {
-                        $this->graphqlTypes['#stringIterableUnionInput'] = new InputUnionType([
-                            'name' => 'StringIterableUnionInput',
-                            'description' => 'Resource\'s IRI or data (embedded entities or when updating a related existing resource)',
-                            'types' => [
-                                GraphQLType::string(),
-                                $this->getIterableType(),
-                            ],
-                        ]);
-                    }
-                    $graphqlType = $this->graphqlTypes['#stringIterableUnionInput'];
-                    break;
-                }
-                if (is_a($type->getClassName(), \DateTimeInterface::class, true)) {
+                if (($input && $depth > 0) || is_a($type->getClassName(), \DateTimeInterface::class, true)) {
                     $graphqlType = GraphQLType::string();
                     break;
                 }
@@ -511,15 +499,6 @@ private function getResourcePaginatedCollectionType(string $resourceClass, Graph
         return $this->graphqlTypes[$resourceClass]['connection'] = new ObjectType($configuration);
     }
 
-    private function getIterableType(): IterableType
-    {
-        if (!isset($this->graphqlTypes['#iterable'])) {
-            $this->graphqlTypes['#iterable'] = new IterableType();
-        }
-
-        return $this->graphqlTypes['#iterable'];
-    }
-
     private function isCollection(Type $type): bool
     {
         return $type->isCollection() && Type::BUILTIN_TYPE_OBJECT === $type->getBuiltinType();