renatompf / poc_spring_graphql

Project made in Java to understand to basics of Spring for GraphQl. Also using PostgresQL

poc_spring_graphql

Description:

This was a small project impleted in JAVA 17 to understand how does Spring for GraphQL works.
To handle the data I used PostgresQL.

How to run it:

In order to run this project you will need Docker and Java 17 - or higher.

In order to run this project the simpler way would be to make the following:

make run

This way you will start a container running the database and the app. Everything will start automatically.

To stop it, you can simply do the following:

make stop

How to test it:

Once your application has started you can go tolocalhost:8080/graphiql and try the following queries:

Queries:

1. Get All Books:

      query {
          books {
            ISBN
            title
            publisher
          }
       }

2. Get Book By Id:

      query {
          booksById(bookISBN: "857904910-5") {
                  title
                  publisher
        }
      }

3. Get All Authors:

      query {
          authors {
            id
            name
          }
       }

4. Get Author By Id:

      query {
          authorsById(authorId: 1) {
             name
          }
      }

Mutations:

1. Add new Book:

       mutation{
           books(newBook: {
               ISBN: "0321349601",
               title: "Java Concurrency in Practice",
               publisher: "Addison-Wesley Professional",
               authorId: 1
           }){
               title
           }
       }

2. Add new User:

       mutation{
         authors(newAuthor:{
              name: "Joshua Bloch"
            }){
                id
            }
        }

3. Delete Book by Id:

       mutation{
           deleteBook(bookISBN: "857904910-5")
       }

4. Update User Name By Id:

       mutation{
             updateAuthorName(authorId: 1, updatedAuthor: {
                  name: "John Who"
             })
               {
                   id
                   name 
               }
       }

These are just some examples to guide you. Feel free to use them as you want and play around with it!