I am working on Pega Constellation and trying to explore the SDK-React project provided by Pega Academy.

Can someone lighten to us the API used to exchange data between the application builded on React and the constellation server ?

In wich object (client side) form data are collected before sended to the server side ? 

PS: I am diving into PCore and PConnect public APIs and no track finded to understand how data collected from a form and sended.