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Best Practices & Recommendations

Security​

Security Audit

For a comprehensive security audit covering all components (Backend, Frontend, Mobile Apps), see the Security Audit Report.

  1. JWT Secret: Use strong, random secret in production
  2. Password Hashing: Already using bcrypt (good)
  3. SQL Injection: Using parameterized queries (good)
  4. CORS: Restrict ALLOWED_ORIGINS in production
  5. Environment Variables: Never commit .env files
  6. HTTPS: Always use HTTPS in production
  7. Rate Limiting: Consider adding rate limiting middleware
Critical Security Issues

Before deploying to production, review and address all critical vulnerabilities listed in the Security Audit Report.

Performance​

  1. Database Indexes: Already have indexes on key fields
  2. Connection Pooling: Using pgxpool (good)
  3. File Storage: Use S3 for production scalability
  4. Caching: Consider Redis for session/token caching
  5. CDN: Use CDN for static assets

Code Quality​

  1. Error Handling: Always handle errors properly
  2. Logging: Use structured logging (consider zap or logrus)
  3. Testing: Add unit and integration tests
  4. Documentation: Keep API docs updated
  5. Code Review: Review all changes before merging

Database​

  1. Migrations: Use migration files for schema changes
  2. Backups: Regular database backups
  3. Monitoring: Monitor query performance
  4. Indexes: Add indexes for frequently queried fields

Development​

  1. Git Workflow: Use feature branches
  2. Commit Messages: Write clear commit messages
  3. Code Formatting: Use gofmt for Go, Prettier for TypeScript
  4. Linting: Use linters (golangci-lint, ESLint)

Future Enhancements​

  1. WebSockets: Real-time status updates
  2. Push Notifications: Mobile app notifications
  3. Analytics: User behavior tracking
  4. Multi-language: Internationalization
  5. Advanced Search: Full-text search for files
  6. File Preview: PDF/image preview before printing
  7. Print History: Detailed print history for users
  8. Rating System: Rate shopkeepers
  9. Loyalty Program: Rewards for frequent users
  10. Bulk Printing: Multiple files in one order