Environment Variables

Configure your app with environment variables. All values are encrypted at rest.

Setting Variables

Go to Services > PaaS > Your App > Env Vars and click Add Variable.

System Variables (auto-set)

• PORT — The port your app must listen on
• DATABASE_URL — PostgreSQL connection string (if database provisioned)

Best Practices

• Never commit secrets to git
• Use descriptive names: STRIPE_SECRET_KEY not KEY1
• Values are masked in dashboard