How can we check whats happening while creating Web service in background in SAP ByD ?

Hello Experts,

While creating web service , we go through Wizard process and create web service.

How can we check whats happening while creating Web service in background ,what language written in background to create Web service?

For example i have created Custom BO with 5 fields ,for that i have created web service using Service integration and we follow wizard process like Create ,Update,Read

I want to know what code they have written and how it works to create web service in SAP ByD?

Can someone help me out on these ?

Thanks & Regards
Balreddy