opentelemetry-java-instrumentation/instrumentation/graphql-java/graphql-java-common/testing/src/main/resources/schema.graphqls

type Query {
  bookById(id: ID): Book
}

type Mutation {
  addBook(id: ID, name: String, author: ID): Book
}

type Book {
  id: ID
  name: String
  author: Author
}

type Author {
  id: ID
  name: String
}