.env.example

# Server Configuration
PORT=3000
NODE_ENV=development

# Redis Configuration (for distributed rate limiting)
REDIS_URL=redis://localhost:6379
REDIS_HOST=localhost
REDIS_PORT=6379
REDIS_PASSWORD=

# reCAPTCHA Configuration
RECAPTCHA_SECRET_KEY=your_recaptcha_secret_key_here
RECAPTCHA_SITE_KEY=your_recaptcha_site_key_here

# Security Configuration
BLOCKED_IPS=192.168.1.100,10.0.0.50
CORS_ORIGIN=http://localhost:3000

# API Keys
API_KEY_SECRET=your_api_key_secret_here

# Database Configuration
DATABASE_URL="postgresql://username:password@localhost:5432/nepa_db"

# Stellar Configuration
STELLAR_NETWORK=testnet
STELLAR_HORIZON_URL=https://horizon-testnet.stellar.org
STELLAR_SECRET_KEY=your_stellar_secret_key_here

# Logging Configuration
LOG_LEVEL=info
LOG_FILE=logs/app.log

# Error Tracking and Monitoring
SENTRY_DSN=https://your-sentry-dsn-here
SENTRY_TRACES_SAMPLE_RATE=0.1
SENTRY_ENVIRONMENT=development

# Performance Monitoring
ENABLE_PERFORMANCE_MONITORING=true
PERFORMANCE_RETENTION_HOURS=24

# Analytics Configuration
ENABLE_ANALYTICS=true
ANALYTICS_RETENTION_DAYS=30
ANALYTICS_BATCH_SIZE=100

# Rate Limiting Configuration
RATE_LIMIT_WINDOW_MS=900000
RATE_LIMIT_MAX_REQUESTS=100
PAYMENT_RATE_LIMIT_MAX=5
TRANSACTION_RATE_LIMIT_MAX=20
AUTH_RATE_LIMIT_MAX=10

# Monitoring and Alerting
ENABLE_ABUSE_MONITORING=true
ABUSE_ALERT_THRESHOLD=100
WEBHOOK_URL_FOR_ALERTS=https://your-webhook-url.com/alerts

# JWT Configuration (if using JWT auth)
JWT_SECRET=your_jwt_secret_here
JWT_EXPIRES_IN=24h

# Email Configuration (for alerts)
SMTP_HOST=smtp.gmail.com
SMTP_PORT=587
SMTP_USER=your-email@gmail.com
SMTP_PASS=your-app-password