This sample is a reference application project, showcasing an end-to-end development scenario for a Java-based app on SAP BTP. The app has a SAPUI5 web frontend, uses OData to connect to a Java-based cloud backend which in turn connects via JPA to an SAP HANA DB in the cloud.
Currently the view and controller for the checkout do only contain the HouseNumber field. I've added the Street fields and cleaned up a bit.