not exactly, we're using a library that reverse engineered the Whatsapp Web api: https://github.com/Rhymen/go-whatsapp. I haven't had any problems with the API and I've been using it for a year straight.
Seems like your cloudflare got hugged a few hugs too many.
haha yeah, I did not expect this so I hadn't paid $5 for more workers. Should work now :)