Python Azure Function requestor's IP address

I'm working on an anonymous level Azure Function in python and couldn't find where they stored the IP address of the caller, if applicable. It's in the request headers, which makes sense but not until I spent far too much time looking in all the wrong places. A minimal reproduction would look something like

import os
iptag = "REQ_HEADERS_X-FORWARDED-FOR"
ip = "Tag name:{} Tag value:{}".format(iptag, os.environ[iptag])
print(ip)

Now, something to note is that it will return not only the IP address but the port the call came in through. Thus, I see a value of 192.168.1.200:33496 instead of just the ipv4 value.

Knowing where to look, I can see that the heavy lifting had already been done by the most excellent HTTPHelper but as a wise man once said: knowing is half the battle.

import os
from AzureHTTPHelper import HTTPHelper
http = HTTPHelper()
#Notice the lower casing of properties here and the trimming of the type (REQ_HEADERS)
iptag = "x-forwarded-for"
ip = "Tag name:{} Tag value:{}".format(iptag, http.headers[iptag])
print(ip)

Yo Joe!