digitalocean_app dns record with terraform

I’m building my infrastructure with Terraform.

I declared a digitalocean_domain:

resource "digitalocean_domain" "royllo_domain" {
  name = "royllo.org"
}

and then, I have my digitalocean_app: resource “digitalocean_app” “royllo_explorer_api_server” {

resource "digitalocean_app" "royllo_explorer_api_server" {
  spec {
  ...
    domain {
      name = "api.explorer.royllo.org"
    }
  ...
  }
}

The app is deployed correcty and I can access it with its ingress address.

The live URL in digital ocean panel is correct: api.explorer.royllo.org But when I try to access api.explorer.royllo.org, it doesn’t work and when doing dig royllo.org any there is not DNS record for my App…

What am I missing ? I thought setting domain {} would be enough. I also tried to create a digitalocean_record but i don’t know what to set in the value parameter as app doesn’t seem to return an IP