update to the cloudflare dns updater

cf-ddns.sh

#!/bin/bash

while getopts z:e:a:t:n:p: option
do
  case "${option}"
  in
    z) ZONEID=${OPTARG};;
    a) APITOKEN=${OPTARG};;
    t) ZONETYPE=${OPTARG};;
    n) RECORD_NAME=${OPTARG};;
    e) EMAIL=${OPTARG};;
    p) PROXIED=${OPTARG};;
  esac
done

cf_api_url="https://api.cloudflare.com/client/v4"

get_record_id () {
    local records
    local records_count

    records=`curl -s -X GET "${cf_api_url}/zones/${ZONEID}/dns_records?name=${RECORD_NAME}&type=A" -H "X-Auth-Email: ${EMAIL}" -H "Authorization: Bearer ${APITOKEN}" -H "Content-Type: application/json"`

    if [ ! "${records}" ]; then
        echo "Request to API failed during record lookup."
        exit 1
    fi

    if [ -n "${records##*\"success\":true*}" ]; then
        echo "Failed to lookup DNS record ID. Check record name or specify an ID."
        echo "${records}"
        exit 1
    fi

    records=`echo "${records}" | grep -Po '(?<="id":")[^"]*'`
    records_count=`echo "${records}" | wc -w`

    if [ $records_count -gt 1 ]; then
        echo "Multiple DNS A records match ${record_name}. Please specify a record ID."
        exit 1
    fi

    recordID="${records}"
    return 0
}


do_A_record_update () {
    # Perform record update
    IP=`curl -s https://ifconfig.io/ip`
    api_dns_update=`curl -s -X PUT "${cf_api_url}/zones/${ZONEID}/dns_records/${recordID}" -H "X-Auth-Email: ${EMAIL}" -H "Authorization: Bearer ${APITOKEN}" -H "Content-Type: application/json" --data "{\"type\": \"${ZONETYPE}\", \"name\":\"${RECORD_NAME}\", \"content\":\"${IP}\", \"ttl\":120, \"proxied\": ${PROXIED}}" | jq '.success'`

    if  [ ! $api_dns_update ]; then
        echo "Record update failed."
        echo `curl -s -X PUT "${cf_api_url}/zones/${ZONEID}/dns_records/${recordID}" -H "X-Auth-Email: ${EMAIL}" -H "Authorization: Bearer ${APITOKEN}" -H "Content-Type: application/json" --data "{\"type\": \"${ZONETYPE}\", \"name\":\"${RECORD_NAME}\", \"content\":\"${IP}\", \"ttl\":120, \"proxied\": ${PROXIED}}"`
        exit 1
    fi

    if [ $api_dns_update ]; then
        echo "Record update succeeded."
        exit 1
    fi
    return 0
}
get_record_id

echo "API_TOKEN: ${APITOKEN}"
echo "Zone_ID: ${ZONEID}"
echo "Record_ID: ${recordID}"
echo "RECORD_NAME: ${RECORD_NAME}"
echo "RECORD_UPDATE_TYPE: ${ZONETYPE}"

do_A_record_update

How to use:

cf-ddns.sh -z <ZoneID> -a <apitoken> -t A -n example.com -p true -e [email protected]