A graphQL repo based on node js server, followed tutorial of fun fun function

https://nodejs.org/en/download/

run command in terminal: $ npm install express --save

run command in terminal: $ npm install express --save

$ npm install express-graphql --save

$ node server.js

 query {
author(id:21559){
    ###  Content here e.g name, books,...
   books{
   	title
   } 
}
}