typeDefs-2.js

const typeDefs = `
  type Post {
    id: Int!
    title: String
    body: String
  }

  type User {
    id: Int!
    username: String
    email: String
  }

  type Query {
    posts: [Post]
    post (id: Int!): Post
    users: [User]
    user: User
  }

  schema {
    query: Query
  }
`