Hi all! I'm starting to use environmental variables from a .env file with my run configurations, and am running into some challenges. Using the instructions on run configuration at this link, I've written the following in my job file:

defs = Definitions(
    jobs=[
        pq_first_load_graph.to_job(
            resource_defs={'s3': s3_res},
            config={
                'ops': {
                    'get_city_data': {
                        'config': {
                            'cities': {'env': 'CITIES'}
                        }
                    }
                }
            }
        )
    ]
)

When I run "dagster dev -f <job_file>", I get the following error:

dagster._core.errors.DagsterInvalidConfigError: Invalid default_value for Field. Error 1: Invalid scalar at path root:get_city_data:config:cities. Value "{'env': 'CITIES'}" of type "<class 'dict'>" is not valid for expected type "String".

Any ideas on what I'm doing wrong? Also, out of curiosity, once I solve this issue, will I have to manually enter the cities value in the job launchpad? I had previously been using os.getenv to load the environmental variables and couldn't figure out a way to get around entering them manually in the launchpad.

Hi Phil, You need

StringSource

set in the config schema for your

get_city_data

op, see here: https://docs.dagster.io/concepts/configuration/config-schema#passing-secrets-as-configuration I recognize that that snippet of docs you linked is misleading because it does not include this, I will fix it.

Ok perfect. I've got it working now -- thanks very much @sean!