# Server
PORT=3001
API_BASE_PATH=/v1
NODE_ENV=development

# Database
DATABASE_URL=postgresql://user:password@localhost:5432/koin_ping

# Ethereum JSON-RPC
ETH_RPC_URL=https://mainnet.infura.io/v3/YOUR-PROJECT-ID

# Polling interval (ms, minimum 1000)
POLL_INTERVAL_MS=60000

# Firebase
FIREBASE_PROJECT_ID=koin-ping

# Email notifications (Resend — https://resend.com)
# RESEND_API_KEY=re_xxxxxxxxxxxx
# EMAIL_FROM=Koin Ping <alerts@yourdomain.com>