I’m deploying a Flask app on Railway. I added DATABASE_URL under:
Architecture → Web Service → Variables

But during deployment, my debug print still shows:
DB_URL: None

psycopg2 then tries to connect via the default local socket:
"/var/run/postgresql/.s.PGSQL.5432"
and fails.

I’ve confirmed:
• The variable is saved in the Web Service
• The value matches the Postgres Connection URL
• The service was restarted after adding it

Still getting DB_URL: None in the deployment logs.

Any ideas on what I might be missing?

Additional context: Everything else in the deployment is working correctly — Google OAuth, redirect flow, callback route, and all other environment variables. The only issue is that DATABASE_URL is not being read by the Web Service, even though other variables in the same service load correctly.

thank you

Are you setting DATABASE_URL or DB_URL?

I’m setting the variable as DATABASE_URL in the Web Service, and in my code I’m calling:

DBURL = os.environ.get("DATABASEURL")

So the names match exactly. The debug print shows DB_URL: None even though the variable is present in the service’s Variables panel.

Have you tried using a different name? (Eg, DB_URL)

I haven’t tried renaming it yet, but I can test that. Just to clarify: the variable is currently named DATABASEURL in the Web Service, and my code calls os.environ.get("DATABASEURL"). All other variables in the same service load correctly.

I can try adding DB_URL as a second variable pointing to the same connection string to see if the Web Service picks that one up.