Script for Mikrotik RouterOS v7 updating AAAA DNS record on CloudFlare

cloudflare_ipv6_ddns_for_routeros_v7.script

:local cftoken "YOUR_CF_TOKEN"
:local cfzoneid "YOUR_CF_ZONE_ID"
:local cfrecordid "YOUR_CF_RECORD_ID"
:local recordtype "RECORD_TYPE"
:local recordname "FULL_RECORD_NAME"
:local recordttl TTL_TIME
:local isproxied false

:local interfacev6prefix [/ipv6 address get [find interface=INTERFACE_NAME from-pool=POOL_NAME] address]
:local interfacev6addr [:pick $interfacev6prefix 0 ([len $interfacev6prefix] -3)]
:local cfurl "https://api.cloudflare.com/client/v4/zones/$cfzoneid/dns_records/$cfrecordid"
:local cfhead "Authorization: Bearer $cftoken,Content-Type:application/json"
:local cfdata "{\"type\":\"$recordtype\",\"name\":\"$recordname\",\"content\":\"$interfacev6addr\",\"ttl\":$recordttl,\"proxied\":$isproxied}"

/tool fetch http-method=put mode=https url=$cfurl http-header-field="$cfhead" http-data=$cfdata output=none