Run mkdir over iControl REST for disappearing /var/config/rest/downloads/tmp

Something like this should work. This basic example is in python, using the requests module and the json module to convert the dict to json.

import requests
import json
s = requests.session()
s.auth = ('admin','admin')
s.verify = False

ip = "some.IP"
url = "/mgmt/tm/util/bash"
payload = { "command":"run",
            "utilCmdArgs":"-c 'mkdir /var/config/rest/downloads/tmp'" }
resp = s.post("https://"+ip+url, data=json.dumps(payload))
print resp.text

Returns: {"kind":"tm:util:bash:runstate","utilCmdArgs":"-c 'mkdir /var/config/rest/downloads/tmp'","command":"run","commandResult":"mkdir: cannot create directory `/var/config/rest/downloads/tmp': File exists\n"}

The equivalent command in tmsh would be: run /util bash -c 'mkdir /var/config/rest/downloads/tmp'

Now I don't know how well supported this method is or if it will continue to exist, but it works for me.