[CLI] Custom environment variables don't work in metadata files

I have a remote_schemas.yaml file:

- name: api
  definition:
    url: "{{ API_GRAPHQL_ENDPOINT }}"
    timeout_seconds: 60

based on the docs here: https://hasura.io/blog/moving-from-local-development-staging-production-with-hasura/. I have the `` environment variable set, but the hasura CLI is still not happy:

❯ API_GRAPHQL_ENDPOINT=https://7asdf8.ngrok.io/graphql hasura metadata apply --admin-secret $HASURA_GRAPHQL_ADMIN_SECRET
FATA[0005] failed to apply metadata: cannot apply metadata on the database: [parse-failed] not a valid URI ($[1].remote_schemas[0].definition.url) 

And dropping the quotes

    url: {{ API_GRAPHQL_ENDPOINT }}

doesn’t work either:

❯ API_GRAPHQL_ENDPOINT=https://7asdf8.ngrok.io/graphql hasura metadata apply --admin-secret $HASURA_GRAPHQL_ADMIN_SECRET
FATA[0004] failed to apply metadata: cannot apply metadata on the database: yaml: invalid map key: map[interface {}]interface {}{"API_GRAPHQL_ENDPOINT":interface {}(nil)} 

[lughino]

This is a very important feature for us as well. Any ETA for enabling it?

[OllyDS]

I’ve run into this issue - is there a solution?

In the databases.yaml file I need to have a dynamic url so would like to use the following:

database_url:
    from_env: HASURA_GRAPHQL_DATABASE_URL

But I get the following error Inconsistent object: environment variable 'HASURA_GRAPHQL_DATABASE_URL' not set. It’s unclear how this should be set.