While using system.net.httpClient, I am able to get the HTTP status codes using the .getStatusCode() method in system.net.httpClient but would like a method to easily decipher these HTTP status codes into the HTTP response phrase. Is there a method to do this using ignition system.net.httpClient? Or do I need to import a java or python library to accomplish this?
Not within Ignition, no; Java's base HTTP client has no such enumeration.
Python's httplib does, though, in the responses dictionary:
https://docs.python.org/2.7/library/httplib.html#httplib.responses