We can test single or multiple batch calls to observe the performance, to see the payload response, and many more.
We will use POSTMAN ( An application used for API testing and creation)
Steps —
A. Run your FIORI application in debugging (F12) mode.
B. Go to the ‘Network’ tab and put a filter for ‘$batch’. This should give you a list of batch calls during a request.
C. Go to the ‘Header’ section and get the below information
i. Get the Service

ii. Get the Payload Request