Python 3.6 CallBill machine look up

callbill.py

#
# 1. logs in to CallBill via its API. 
# 2. pulls location from config or CallBill profile if not defined
# 3. searches for matching machines based on filters in config
#    (default: washing machines that are available)
# 4. once the check cycle is finished, calls config.found_func
#    (default found_func calls OSX "say" executable)
# 5. waits X seconds before next attemp
#    (default 60 seconds)
#


import requests
import time
import json
import subprocess


class config:
    SEARCH_FOR = {
        'serviceType': "WASHING_MACHINE",  # WASHING_MACHINE, DRYER, etc
        "state": "AVAILABLE",  # AVAILABLE, STOPPABLE, OCCUPIED
        # "externalId": "", # external machine id (displayed in UI)
        # "location": "", # where
        # "serviceType": "WASHING_MACHINE",
    }
    email = ""
    password = ""
    location_id = None  # set here or it will be grabbed from your profile
    delay_between_checks_secs = 60

    # function that runs when a machine matches
    # by default uses OSX "say" executable
    @staticmethod
    def found_func(machines):
        for machine in machines:
            subprocess.call(f"say \"Found {machine['externalId']}\"", shell=True)


login_url = "https://www.involtum-services.com/api-rest/login"
subscription_url = "https://www.involtum-services.com/api-rest/subscription"
machines_url_pattern = "https://www.involtum-services.com/api-rest/location/{locationId}/connectors"
headers = {
    "Language": "en",
    "Platform": "callbill",
    "Content-Type": "application/json",
}


r_login = requests.post(login_url, headers=headers, data=json.dumps({
    'email': config.email,
    'password': config.password
}))
if not r_login.ok:
    raise Exception("could not login")

login_json = r_login.json()
token = login_json['login']['token']

print(f"Logged in. Token: {token}")
headers['token'] = token

if not config.location_id:
    r_location = requests.get(subscription_url, headers=headers)
    if not r_location.ok:
        raise Exception(
            "no location_id provided and could not extract location from callbill")
    config.location_id = r_location.json()['data']['locationExternalId']
    print(f"Location id was not provided, fetched {config.location_id}")
machines_url = machines_url_pattern.format(locationId=config.location_id)

while(True):
    print("Checking up.")
    r_machines = requests.get(machines_url, headers=headers)
    if not r_machines.ok:
        raise Exception("could not get machines")
    machines_json = r_machines.json()
    matches = []
    for machine in machines_json['data']:
        for key, value in config.SEARCH_FOR.items():
            if key in machine:
                if machine[key] != value:
                    break
        else:
            print(
                f"Found by criteria: {machine['externalId']} - {machine['serviceType']}")
            matches.append(machine)
    config.found_func(matches)
    print(f"Check done. Waiting {config.delay_between_checks_secs}")
    time.sleep(config.delay_between_checks_secs)