Compose networking with axios (node) error ENOTFOUND

Put out on stack overflow yesterday with no dice: https://stackoverflow.com/questions/50263684/docker-compose-networking-with-axios-node

Wondering if any of you have seen an error like this before. It’s likely a problem with my configuration because I can ping across container to container. But, I can’t make requests.

Though, I can make the same POST requests across https to the outside world (production server running the same code as the app service)