graphql-presentation

Slides are in the docs folder:

• https://github.com/sourcelabs-nl/graphql-presentation/tree/master/docs

Code samples:

• https://github.com/sourcelabs-nl/graphql-presentation/tree/master/src/main/java/nl/sourcelabs/graphql

Running the Spring Boot demo application

Clone this git repository on your local machine. And run the application using the Spring Boot Maven plugin.

On Mac/Unix

./mvnw spring-boot:run

On Windows

mvnw spring-boot:run

Once it is started, browse to: http://localhost:8080/graphiql

Query

Now you can try to query the model (control+space will help you). An example query to retrieve all orders:

query {
  orders {
    id
    totalPrice
    orderItems {
      quantity
      product {
        title
        price
        imageUrl
      }
      shipment {
        status
      }
    }
  }
}

Query with errors element in the response

To generate a response that includes an errors element you can include the exception field inside orderItems. This demonstrates that the order information is returned but the OrderItem field names exception is null.

query {
  orders {
    id
    totalPrice
    orderItems {
      exception
      quantity
      product {
        title
        price
        imageUrl
      }
      shipment {
        status
      }      
    }
  }
}

Mutation

You can place an order by executing the following mutation query:

mutation CreateOrder($order: OrderInput) {
  createOrder(order: $order) {
    id
    totalPrice
    orderItems {
      quantity
      product {
        title
        price
        imageUrl
      }
    }
  }
}

Using this query variable:

{
  "order": {
    "orderItems": [
      {
        "productId": "123",
        "quantity": 1
      },
      {
        "productId": "234",
        "quantity": 1
      }
    ]
  }
}

Questions?

If you have any questions or maybe you want to request a presentation or workshop, then please send a mail to: info@sourcelabs.nl