API to read concurrent invoices

I have a 3rd part software that needs an API to submit hundreds of pdf invoices parallel and receive digitized data.
Previous pipeline was concurrent RESTapi in Python.
I have set up a document understanding template but struggling to set up multi-threaded efficient api to submit invoices jobs to Uipath and receive digitized data .

I would appreciate any help as I am fairly new to Uipath .

you can use the new feature introduced by UiPath to use digitization services as an API. You can read more here :