Question 1

How to use GraphQL-Java Annotations with Spring Boot?

Accepted Answer

The README mentions the graphql-spring-annotations library, which builds on this project to create a GraphQL Spring Boot server. It handles dependency injection and configuration, simplifying integration with Spring ecosystems.

Question 2

GraphQL-Java Annotations vs graphql-java: which is better for my project?

Accepted Answer

GraphQL-Java Annotations is better if you want a declarative, annotation-driven approach to reduce boilerplate and improve code readability. Plain graphql-java offers more control for dynamic or complex schema manipulations but requires more manual coding.

Question 3

How to handle custom Java types like UUID in GraphQL-Java Annotations?

Accepted Answer

Implement a TypeFunction for the custom type, such as UUIDTypeFunction, and register it with GraphQLAnnotations using registerType. This allows automatic mapping of UUID to GraphQL types, as explained in the Type Inference section.

Question 4

Can I use GraphQL-Java Annotations for GraphQL subscriptions?

Accepted Answer

Yes, the AnnotationsSchemaCreator supports subscriptions by specifying a subscription class, similar to query and mutation. However, the README provides limited examples, so you may need to refer to graphql-java's subscription documentation for implementation details.

Question 5

What's the best way to implement pagination with Relay in this library?

Accepted Answer

Use the @GraphQLConnection annotation on fields, requiring the data fetcher to return a PaginatedData instance. The library provides AbstractPaginatedData for convenience, and you can customize the Relay schema with setRelay in the builder.

Question 6

How do I add custom directives to my GraphQL schema?

Accepted Answer

Define a directive as a Java annotation with @GraphQLDirectiveDefinition, create a wiring class implementing AnnotationsDirectiveWiring, and apply it to fields using the annotation or @GraphQLDirectives, as detailed in the Directives section with examples like Suffix.

graphql-java-annotations

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