query 
{
  books
  {
    nodes
    {
      id,
      title
    }
  }
}

mutation
{
  deleteBook(inputBook:
    {
    id: 4
    }    
  )
  {
    title    
  }
}

mutation
{
  createBook(inputBook: {
    title: "Приключения капитана Вру"
    authorId: 1
    price: 1999
  })
  {
    id
  }
}

mutation
{
  updateBook(inputBook: {
    id: 4
    title: "Winny the Pooh"
  })
  {
    title
  }
}