sample.graphql

schema {
  query: Query
}

type CategoryType {
  id: ID!
  name: String!
  ingredients: [IngredientType]
}

type IngredientType {
  id: ID!
  name: String!
  notes: String!
  category: CategoryType!
}

type Query {
  category(id: Int, name: String): CategoryType
  allCategories: [CategoryType]
  ingredient(id: Int, name: String): IngredientType
  ingredients(ids: [Int]): [IngredientType]
  allIngredients: [IngredientType]
}