Kept running into issues, here's my two cents for anyone else.

[nahventure]

don't know why.
don't know how.
skydived into the api docs and tried my best.

Here's what I replaced the script for getting the a-record ID with.

https://pastebin.com/pVzuQjF4 the other one kept giving errors, syntax errors mostly.

({"success":false,"errors":[{"code":6003,"message":"Invalid request headers","error_chain":[{"code":6103,"message":"Invalid format for X-Auth-Key header"}]}],"messages":[],"result":null}curl: (6) Could not resolve host: application)

Using Debian 10 with latest curl.

[hcuk94]

Thank you! I was having similar issues and this was the quickest resolution for me.

[dcerisano]

Looks like you did not have your dynamic A-Record created in CF.
Also please post suggested code changes as a PR.
No one else is reporting this issue.