Refactoring authorposts schema

author.js

export default `
  type Author {
    id: Int!
    firstName: String
    lastName: String
    posts: [Post] # the list of Posts by this author
}`

post.js

export default `
type Post {
  id: Int!
  title: String
  author: Author
  votes: Int
}`

schema.js

import Author from './components/author'
import Post from './components/post'

const typeDefs =
    `
  # the schema allows the following query:
  extend type Query {
    posts: [Post]
    author(id: Int!): Author
  }

  # this schema allows the following mutation:
  extend type Mutation {
    upvotePost (
      postId: Int!
    ): Post
  }
`;

export default [typeDefs, Author, Post];