Production Checklist

Security

• ✅ Use Helmet
• ✅ Validate all input
• ✅ Rate limiting
• ✅ HTTPS only
• ✅ Hash passwords with bcrypt
• ✅ Environment variables for secrets

Performance

• ✅ Enable compression
• ✅ Cache with Redis
• ✅ Database indexes
• ✅ Use lean() for reads
• ✅ Parallel operations with Promise.all()
• ✅ Clustering with PM2

Reliability

• ✅ Error handling
• ✅ Graceful shutdown
• ✅ Health checks
• ✅ Logging with Winston
• ✅ Monitoring
• ✅ Auto-restart with PM2

Deployment

• ✅ PM2 for process management
• ✅ Nginx reverse proxy
• ✅ SSL with Let's Encrypt
• ✅ CI/CD pipeline
• ✅ Environment setup
• ✅ Backup strategy

Testing

• ✅ Unit tests
• ✅ API tests
• ✅ Integration tests
• ✅ 80% code coverage
• ✅ Run tests in CI/CD

Key Takeaway

Production-ready means secure, fast, reliable, and monitored. Use this checklist before deployment. Test thoroughly. Monitor continuously.