• This document provides a SwissPostAPI class that allows you to generate an address label barcode
• using the Swiss Post API. The class handles the authentication process, sends a POST request to the API,
• and retrieves the generated barcode label data in ZPL format. The ZPL string is then displayed and can be
• saved as a .zpl file. Additionally, the comment provides instructions on how to test the generated ZPL file
• using the Labelary ZPL Viewer and how to send the ZPL file to a Zebra printer for printing the barcode label.
• To use this document, replace the "XXXXX" placeholders with your actual client ID and client secret,
• and then create an instance of the SwissPostAPI class to generate the barcode label.

ZPL file test online: http://labelary.com/viewer.html (100x150mm 300dpi)