Python script to check the IP and update the DNS on Cloudflare.

cf_ddns.py

#!/usr/bin/python3
import requests
from sendnotify import send_telegram_message

cfToken = 'API Token'
cfEmail = 'email@address'
cfZoneID = 'Zone ID'
cfRecordID = 'Record ID'
cfRecordName = 'domain name'
header = {"X-Auth-Email": cfEmail, "X-Auth-Key": cfToken, "Content-Type": "application/json"}

# check the IP address
response = requests.get("https://ipwho.is")
public_ip = response.json().get("ip")

# check the IP in Cloudflare
cfurl = f"https://api.cloudflare.com/client/v4/zones/{cfZoneID}/dns_records/{cfRecordID}"
response = requests.get(cfurl, headers=header)
reg_ip = response.json().get("result").get("content")

if public_ip != reg_ip:
    payload = {"content": public_ip}
    cfurl = f"https://api.cloudflare.com/client/v4/zones/{cfZoneID}/dns_records/{cfRecordID}"

    response = requests.patch(cfurl, headers=header, json=payload)
    send_telegram_message(f"The IP has been updated - {reg_ip} --> {public_ip}")