The below post is an extension of the project Gateway Project for Expanded Entity Set.
Below is the project date model with association(Navigation) and the artifacts.
Let’s redefine the CREATE_DEEP_ENTITY method of the DPC extension class. By calling the method READ_ENTRY_DATA we get the deep structured data and then mapped to the appropriate work area and tables and we can update the required tables as necessary[ the insert query is not applied below but it can be done].
Let’s use the EXPAND with the Navigation link with the GET operation to find the result.
Here is the deep structure result-
By looking at the above result- we can prepare our POST operation input payload to trigger the CREATE_DEEP_ENTITY method.
Its in JSON format with one header and 2 items.
Set the breakpoint in the CREATE_DEEP_ENTITY method.
See the POST URI – its just the Entityset name.
The request payload-
The input deep structure we get in our internal deep structure- LS_AIRLINE.
The header fields and the navigation component for the ITEMs.
Items-
The status and reason-
SAPCODES 