Get availalbe free slots for online order by the AH

get.py

#!/usr/bin/python3
"""
This script notifies you by mail when there are available time slots for online shopping at the AH.

./get.py --postcode 1111aa --to-mail <WHERE_TO_SEND_THE_ALLERT> --from-mail <GMAIL_SENDER_ADDRESS> --password <THEPASS>
"""

import json
import urllib.request

from email.mime.text import MIMEText
import smtplib

import logging
logging.basicConfig(level=logging.INFO,format="%(asctime)s %(filename)s: %(message)s")

import argparse

def sendgmail(from_mail,to_mail,username,password,subject,text):

    msg = MIMEText(text)
    msg['Subject'] = subject
    msg['From'] = from_mail
    msg['To'] = to_mail

    server = smtplib.SMTP('smtp.gmail.com:587')
    server.starttls()
    server.login(username,password)
    server.sendmail(from_mail, to_mail,msg.as_string())
    server.quit()


def fetch_dates(postcode,local_file=False):
    if local_file:
        resp = json.load(open(local_file))
    else:
        url=f"https://www.ah.nl/service/rest/delegate?url=%2Fkies-moment%2Fbezorgen%2F{postcode}"

        with urllib.request.urlopen(url) as r:
            json_resp = r.read()

        resp = json.loads(json_resp)

    return resp["_embedded"]["lanes"][3]["_embedded"]["items"][0]["_embedded"]["deliveryDates"]

if __name__ == "__main__":
    parser = argparse.ArgumentParser(description='Fetch and alert for free slots in the AH')
    parser.add_argument("--postcode", help="The postcode to fetch the free slots for", required=True)
    parser.add_argument("--from-mail", help="The from mail", required=True)
    parser.add_argument("--to-mail", help="The mail to send the alert to", required=True)
    parser.add_argument("--password", help="The password to authenticate to Gmail", required=True)
    args = parser.parse_args()

    delivery_dates = fetch_dates(args.postcode)
    
    free_slots = []
    for day in delivery_dates:
        date = day["date"]
        for slot in day["deliveryTimeSlots"]:
            if slot["state"] != "full":
                full = False
                text = f"{date} from {slot['from']}"
                free_slots.append(text)
                logging.info(text)

    if free_slots:
        mailtext = "Free slots available on\n {}".format("\n".join(free_slots))
        sendgmail(args.from_mail,args.to_mail,args.from_mail,args.password,"Free slots available!",mailtext)
    else:
        logging.info("No slots available in the next 2 weeks.")