Create Data Entities with Joule

In this lesson, we will create the data model and the services for the customer loyalty program application.

We could create the data model visually from the Storyboard or by writing the code manually. However, we are going to use the generative AI capabilities of Joule and SAP Build Code to generate the code. Thus, significantly reducing the time and effort required to develop the customer loyalty program application.

1. Launch the Joule digital assistant.

   • Please wait for the digital assistant to open. If it fails to open then please refresh your browser.
   

2. Please ask Joule to generate a CAP application by entering /cap-gen-app into the prompt.

   

3. Generate the data model and services by copying and pasting the prompt into the box where it says ‘Describe what you need to do’.

Design a customer loyalty program application. Define 3 data entities: Customers, Purchases and Redemptions. Each customer must have the following fields: name, email, 7-digit customer number, total purchase value, total reward points, ‘total redeemed reward points’. All fields for each customer should be integer except name and email that will be stored as string. Purchases should include the following fields: purchase value, reward points and selected product. All fields in Purchases must be integer except selected product. Redemptions must have 1 field in integer: redeemed amount. Each purchase and redemption will be associated to a customer. Use Association instead of compositions. Do not use managed in the Customers entity.

4. Select Generate.

   

5. The code should be generated now below your prompt.

   

6. Select Accept.

   

7. Once the code is accepted, the update will be reflected on the Storyboard. Please allow up to 2 minutes for Joule to generate the data models and services.