Queries and Mutations

Overview

Now that we have defined the schema, types, queries, and mutations, let’s dive deeper into these concepts. To keep everything simple, we’ll define the following queries:

• getAllBooks()
• getAllAuthors()
• getBook(id: String)
• getAuthor(id: String)

We’ll also define the following mutations:

• addBook(input: BookInput!)
• addAuthor(input: AuthorInput!)
• addReview(input: ReviewInput!)

Note: We’ll only add the entities for now and we won’t link them (that is, we won’t add an author and reviews to a book).