I'm attempting to develop Cobol code to call an external sales tax calculation API (provided by Avalara/Avatax). HttpPost seems the most logical way to go as I will be sending & receiving responses. However, the basic format of the destination URL is getting the better of me. Simple test json url's, such as http://ip.jsonttest.com/ work fine and return responses. However when I need to send a complex URL with username/passwords & search parameters I'm getting nowhere.
Are there any step by step tutorials on this subject?
Any and all helpful comments are appreciated in advance!