Update Hipchat room topic with who is on call from PagerDuty

whoisoncall.py

#!/usr/bin/env python
import requests, json

SUBDOMAIN='SUBDOMAIN'
API_ACCESS_KEY='YOURAPIACCESSKEY'
AUTH_CODE='APIAUTHCODE'

def get_oncall_name():
    url = 'https://{0}.pagerduty.com/api/v1/escalation_policies/on_call'.format(SUBDOMAIN)
    headers = {
        'Authorization': 'Token token={0}'.format(API_ACCESS_KEY),
        'Content-Type': 'application/json',
    }
    data = {'query': 'ops-default-escalation'}
    payload = json.dumps(data)
    r = requests.get(url, data=payload, headers=headers)
    oncall = r.json()
    whosoncall =  oncall['escalation_policies'][0]['on_call'][0]['user']['name']
    return whosoncall

def notify_hipchat():
    whoisoncall = get_oncall_name()
    hcurl = 'https://opinionlab.hipchat.com/v2/room/ROOM_ID/topic?auth_token={1}'.format(AUTH_CODE)
    message = '{"topic" : "OnCall: %s"}' % whoisoncall
    headers = {'content-type' : 'application/json'}
    res = requests.put(hcurl, data=message, headers=headers)
    print res

notify_hipchat()