Ask for client ID, GET API data from REST system, print QR barcode

Id like a small system that will search the ActionSTEP system for a user (either by way of matter id or surname), then GET the data and print a QR barcode on a label. Option to express how many labels should be printed. Currently using a Zebra LP2824 printer and would like to continue using the same. Parent system ActionSTEP API details at https://actionstep.atlassian.net/wiki/display/API/API+Quick+Start+Guide