请求执行

GraphQlSource.Builder builder = ...

builder.schemaResources(..)
		.configureRuntimeWiring(..)
		.schemaFactory((typeDefinitionRegistry, runtimeWiring) -> {
			// create GraphQLSchema
		})

@Configuration
public class GraphQlConfig {

	@Bean
	public RuntimeWiringConfigurer runtimeWiringConfigurer(BookRepository repository) {
		GraphQLScalarType scalarType = ... ;
		SchemaDirectiveWiring directiveWiring = ... ;
		return wiringBuilder -> wiringBuilder
				.scalar(scalarType)
				.directiveWiring(directiveWiring);
	}
}

GraphQlSource.Builder builder = ...
ClassNameTypeResolver classNameTypeResolver = new ClassNameTypeResolver();
classNameTypeResolver.setClassNameExtractor((klass) -> {
	// Implement Custom ClassName Extractor here
});
builder.defaultTypeResolver(classNameTypeResolver);

@Configuration
public class GraphQlConfig {

	 @Bean
	 public RuntimeWiringConfigurer runtimeWiringConfigurer() {
		  return builder -> builder.directiveWiring(new MySchemaDirectiveWiring());
	 }

}

@Bean
GraphQlSourceBuilderCustomizer sourceBuilderCustomizer(
		ObjectProvider<DataFetcherExceptionResolver> resolvers) {

	DataFetcherExceptionHandler exceptionHandler =
			DataFetcherExceptionResolver.createExceptionHandler(resolvers.stream().toList());

	AsyncExecutionStrategy strategy = new CustomAsyncExecutionStrategy(exceptionHandler);

	return sourceBuilder -> sourceBuilder.configureGraphQl(builder ->
			builder.queryExecutionStrategy(strategy).mutationExecutionStrategy(strategy));
}

GraphQlSource.Builder builder = ...

builder.schemaResources(..)
		.inspectSchemaMappings(report -> {
			logger.debug(report);
		});

GraphQL schema inspection:
    Unmapped fields: {Book=[title], Author[firstName, lastName]} (1)
    Unmapped registrations: {Book.reviews=BookController#reviews[1 args]} (2)
    Unmapped arguments: {BookController#bookSearch[1 args]=[myAuthor]} (3)
    Field nullness errors: {Book=[title is NON_NULL -> 'Book#title' is NULLABLE]} (4)
    Argument nullness errors: {BookController#bookById[1 args]=[java.lang.String id should be NULLABLE]} (5)
    Skipped types: [BookOrAuthor] (6)

// Typically, accessed through Spring Boot's GraphQlSourceBuilderCustomizer
GraphQlSource.Builder builder = ...

// Create provider
PreparsedDocumentProvider provider =
        new ApolloPersistedQuerySupport(new InMemoryPersistedQueryCache(Collections.emptyMap()));

builder.schemaResources(..)
		.configureRuntimeWiring(..)
		.configureGraphQl(graphQLBuilder -> graphQLBuilder.preparsedDocumentProvider(provider))

public class RequestAttributesAccessor implements ThreadLocalAccessor<RequestAttributes> {

    @Override
    public Object key() {
        return RequestAttributesAccessor.class.getName();
    }

    @Override
    public RequestAttributes getValue() {
        return RequestContextHolder.getRequestAttributes();
    }

    @Override
    public void setValue(RequestAttributes attributes) {
        RequestContextHolder.setRequestAttributes(attributes);
    }

    @Override
    public void reset() {
        RequestContextHolder.resetRequestAttributes();
    }

}

type Query {
	books(first:Int, after:String, last:Int, before:String): BookConnection
}

type Book {
	id: ID!
	title: String!
}

GraphQlSource.schemaResourceBuilder()
		.schemaResources(..)
		.typeDefinitionConfigurer(new ConnectionTypeDefinitionConfigurer)

type BookConnection {
	edges: [BookEdge]!
	pageInfo: PageInfo!
}

type BookEdge {
	node: Book!
	cursor: String!
}

type PageInfo {
	hasPreviousPage: Boolean!
	hasNextPage: Boolean!
	startCursor: String
	endCursor: String
}

ConnectionAdapter adapter = ... ;
GraphQLTypeVisitor visitor = ConnectionFieldTypeVisitor.create(List.of(adapter)) (1)

GraphQlSource.schemaResourceBuilder()
		.schemaResources(..)
		.typeDefinitionConfigurer(..)
		.typeVisitors(List.of(visitor)) (2)

@Configuration
public class MyConfig {

	public MyConfig(BatchLoaderRegistry registry) {

		registry.forTypePair(Long.class, Author.class).registerMappedBatchLoader((authorIds, env) -> {
				// return Mono<Map<Long, Author>
		});

		// more registrations ...
	}

}

type Query {
    me: Person
    people: [Person]
}

input FriendsFilter {
    favoriteBeverage: String
}

type Person {
    id: ID!
    name: String
    favoriteBeverage: String
    friends(filter: FriendsFilter): [Person]
}

	public FriendsControllerFiltering(BatchLoaderRegistry registry) {
		registry.forTypePair(Integer.class, Person.class).registerMappedBatchLoader((personIds, env) -> {
			Map<Integer, Person> friends = new HashMap<>();
			personIds.forEach((personId) -> friends.put(personId, this.people.get(personId))); (1)
			return Mono.just(friends);
		});
	}

	@QueryMapping
	public Person me() {
		return ...
	}

	@QueryMapping
	public Collection<Person> people() {
		return ...
	}

	@SchemaMapping
	public CompletableFuture<List<Person>> friends(Person person, @Argument FriendsFilter filter, DataLoader<Integer, Person> dataLoader) {
		return dataLoader
				.loadMany(person.friendsId())
				.thenApply(filter::apply); (2)
	}

	public record FriendsFilter(String favoriteBeverage) {

		List<Person> apply(List<Person> friends) {
			return friends.stream()
					.filter((person) -> person.favoriteBeverage.equals(this.favoriteBeverage))
					.toList();
		}
	}

	public FriendsControllerComposedKey(BatchLoaderRegistry registry) {
		registry.forTypePair(FriendFilterKey.class, Person[].class).registerMappedBatchLoader((keys, env) -> {
			return dataStore.load(keys);
			Map<FriendFilterKey, Person[]> result = new HashMap<>();
			keys.forEach((key) -> { (2)
				Person[] friends = key.person().friendsId().stream()
						.map(this.people::get)
						.filter((friend) -> key.friendsFilter().matches(friend))
						.toArray(Person[]::new);
				result.put(key, friends);
			});
			return Mono.just(result);
		});
	}

	@QueryMapping
	public Person me() {
		return ...
	}

	@QueryMapping
	public Collection<Person> people() {
		return ...
	}

	@SchemaMapping
	public CompletableFuture<Person[]> friends(Person person, @Argument FriendsFilter filter, DataLoader<FriendFilterKey, Person[]> dataLoader) {
		return dataLoader.load(new FriendFilterKey(person, filter));
	}

	public record FriendsFilter(String favoriteBeverage) {
		boolean matches(Person friend) {
			return friend.favoriteBeverage.equals(this.favoriteBeverage);
		}
	}

	public record FriendFilterKey(Person person, FriendsFilter friendsFilter) { (1)
	}

query {
    me {
        name
        friends(filter: {favoriteBeverage: "tea"}) {
            name
            favoriteBeverage
        }
    }
    people {
        name
        friends(filter: {favoriteBeverage: "coffee"}) {
            name
            favoriteBeverage
        }
    }
}

{
  "data": {
    "me": {
      "name": "Brian",
      "friends": [
        {
          "name": "Donna",
          "favoriteBeverage": "tea"
        }
      ]
    },
    "people": [
      {
        "name": "Andi",
        "friends": [
          {
            "name": "Rossen",
            "favoriteBeverage": "coffee"
          },
          {
            "name": "Brad",
            "favoriteBeverage": "coffee"
          }
        ]
      },
      {
        "name": "Brad",
        "friends": [
          {
            "name": "Rossen",
            "favoriteBeverage": "coffee"
          },
          {
            "name": "Andi",
            "favoriteBeverage": "coffee"
          }
        ]
      },
      {
        "name": "Donna",
        "friends": [
          {
            "name": "Rossen",
            "favoriteBeverage": "coffee"
          },
          {
            "name": "Brad",
            "favoriteBeverage": "coffee"
          }
        ]
      },
      {
        "name": "Brian",
        "friends": [
          {
            "name": "Rossen",
            "favoriteBeverage": "coffee"
          }
        ]
      },
      {
        "name": "Rossen",
        "friends": []
      }
    ]
  }
}

BatchLoaderRegistry batchLoaderRegistry = new DefaultBatchLoaderRegistry();
// perform registrations...

DataLoaderRegistry dataLoaderRegistry = DataLoaderRegistry.newRegistry().build();
batchLoaderRegistry.registerDataLoaders(dataLoaderRegistry, graphQLContext);

DataLoader<Long, Book> loader = dataLoaderRegistry.getDataLoader(Book.class.getName());
loader.load(1L);
loader.loadMany(Arrays.asList(2L, 3L));
List<Book> books = loader.dispatchAndJoin(); // actual loading

assertThat(books).hasSize(3);
assertThat(books.get(0).getName()).isEqualTo("...");
// ...