Documentation error on Schema basics topic

In the schema basics topic we defined the next schema structure:

const typeDefs = gql`
  type Book {
    title: String
    author: Author
  }

  type Author {
    name: String
    books: [Book]
  }

  type Query {
    getBooks: [Book]
    getAuthors: [Author]
  }

  type Mutation {
    addBook(title: String, author: String): Book
  }
`;

But, with that structure and this data (provided by the documentation):

const books = [
  {
    title: 'Harry Potter and the Chamber of Secrets',
    author: 'J.K. Rowling',
  },
  {
    title: 'Jurassic Park',
    author: 'Michael Crichton',
  },
];

Is not possible to obtain the data as the documentation displays.

Doc result:

{
  "data": {
    "getBooks": [
      {
        "title": "Jurassic Park",
        "author": {
          "name": "Michael Crichton"
        }
      },
      ...
    ]
  }
}

My result:

{
  "data": {
    "getBooks": [
      {
        "title": "Harry Potter and the Chamber of Secrets",
        "author": {
          "name": null
        }
      },
      {
        "title": "Jurassic Park",
        "author": {
          "name": null
        }
      }
    ]
  }
}

am I doing something wrong or is it a doc error?

[nikhilunni511]

@enbermudas Hope you are mixing the contents from getting-started and schema-basics. My suggestion is if you follow the getting-started first, then you can solve the issue yourself. FYI, const books = [ { title: 'Harry Potter and the Chamber of Secrets', author: 'J.K. Rowling', }, { title: 'Jurassic Park', author: 'Michael Crichton', }, ]; this is from getting-started, but it won’t work with queries that you have mentioned in this issue. This data is not enough to work with your problem, you need to add some more data to work with your problem.

@abernix @enbermudas Please excuse me if I’m wrong.

[nikhilunni511]

That’s what I’m talking about: there is code missing and there is no explanation on how to generate that code between those to tutorials. I’m lost.

@enbermudas Understood. But the getting-started is an overall idea about how to develop a server (create a project) and the schema-basics is just schema basics, so if you want to define data for the schema do it yourself, because we can do it in different ways. So that decision is always up to you. And I hope once you covered all the topics you will get the answer for your question. Now let me show you a few examples: example 1

const books = [
  {
    title: 'Harry Potter and the Chamber of Secrets',
    author: {
           name: 'J.K. Rowling'
      }
  },
  {
    title: 'Jurassic Park',
    author: {
           name: 'Michael Crichton'
     }
  },
];

example 1

const books = [
  {
    authorId: 1
    title: 'Harry Potter and the Chamber of Secrets',
  },
  {
    authorId: 2
    title: 'Jurassic Park',
  },
];
const authors = [
  {
    id: 1
    name: 'J.K. Rowling',
  },
  {
    id: 2
    name: 'Michael Crichton',
  },
];

We can define data for the schema in different ways as I stated above. Hope this will help you. Correct me if I’m wrong