Goa-gel-fullstack/Documentation/operations/configuration.md

Configuration

Environment Variables

Application

Variable	Description	Example
NODE_ENV	Runtime environment	production
PORT	API server port	3000
LOG_LEVEL	Logging verbosity	info

Database

Variable	Description	Example
DB_HOST	PostgreSQL host	postgres.internal
DB_PORT	PostgreSQL port	5432
DB_USER	Database user	license_app
DB_PASSWORD	Database password	<secure>
DB_NAME	Database name	license_prod

Authentication

Variable	Description	Example
JWT_SECRET	Token signing key	<64-char-random>
JWT_EXPIRY	Token lifetime	3600

Blockchain

Variable	Description	Example
BESU_RPC_URL	Besu JSON-RPC endpoint	http://besu:8545
CONTRACT_ADDRESS	NFT contract address	0x123...
WALLET_PRIVATE_KEY	Signing wallet key	<secure>

External Services

Variable	Description	Example
DIGILOCKER_CLIENT_ID	DigiLocker OAuth client	<client-id>
DIGILOCKER_SECRET	DigiLocker OAuth secret	<secret>
SMTP_HOST	Email server	smtp.gov.in
SMS_API_KEY	SMS gateway key	<api-key>

Configuration Files

config/production.yaml

server:
  port: 3000
  cors:
    origins:
      - https://license.gov.in
      - https://admin.license.gov.in

database:
  pool:
    min: 5
    max: 20

blockchain:
  confirmations: 2
  gasLimit: 500000

upload:
  maxSize: 10485760  # 10MB
  allowedTypes:
    - application/pdf
    - image/jpeg
    - image/png

Secrets Management

Store sensitive values in:

• Environment variables (Docker/Kubernetes)
• HashiCorp Vault
• AWS Secrets Manager

Never commit secrets to version control.