mn-graphql-bean

    @Bean
    @Singleton
    public GraphQL graphQL(
        final ResourceResolver resourceResolver,
        final DataFetcherProvider dataFetcherProvider) {
        
        val schemaParser = new SchemaParser();
        val schemaGenerator = new SchemaGenerator();

        // Parse the schema.
        val typeRegistry = new TypeDefinitionRegistry();
        typeRegistry.merge(schemaParser.parse(new BufferedReader(new InputStreamReader(
            resourceResolver.getResourceAsStream("classpath:schema.graphqls").get()
        ))));

        // Create the runtime wiring.
        val runtimeWiring = RuntimeWiring.newRuntimeWiring()
            .type(TypeRuntimeWiring
                .newTypeWiring("Query")
                .dataFetcher("allLinks", dataFetcherProvider.getAllLinksDataFetcher()))
            .type(TypeRuntimeWiring
                .newTypeWiring("Mutation")
                .dataFetcher("createLink", dataFetcherProvider.createLinkDataFetcher()))
            .build();

        // Create the executable schema.
        val graphQLSchema = schemaGenerator.makeExecutableSchema(typeRegistry, runtimeWiring);

        // Return the GraphQL bean.
        return GraphQL.newGraphQL(graphQLSchema).build();
    }