It would be also good to have a look at the below Tungsten Demo Center recordings:
https://www.tungstendemocenter.com/items/delete-temporary-cards-printix-card-api
https://www.tungstendemocenter.com/items/debug-printer-in-printix
https://www.tungstendemocenter.com/items/postman-and-printix-card-api
Tungsten Automation - Batch Register Card Values Printix Card API.pptx