Expose proxy for container to container communication

So I am using Traefik for a multi container local development setup. I have https://app.dv proxied to a Node container for JS SSR and my front-end. I have https://api.app.dv proxied to my back-end.

Both domains work great from my host, but I was curious, could I make https://api.app.dv available to my Node container? That way both my SSR api requests and browser based api requests could both hit the https://api.app.dv.