/If you want to save an author but without books********************/ mutation{ saveAuthor(author:{id:5,name:"sidaoui"}){ id name } } /If you want to retreive all authors********************/ query{ getAuthor{ id name books { id title description pages } } } /If you want to retreive an author by id********************/ query{ getAuthorById(id:1){ id name books { id title description pages } } } /If you want to add a new book**********************/ mutation{ saveBook(book:{title:"REST API tutorial",description:"Tutorial",pages:300,id:2}) { id
} } /If you want to retreive all books**********************/ query{ getAllBooks{ title description pages author{ id name }

} }