Node.js and Express.js Best Practices

Project Structure

• Use proper directory structure
• Implement proper module organization
• Use proper middleware organization
• Keep routes organized by domain
• Implement proper error handling
• Use proper configuration management

Express Setup

• Use proper middleware setup
• Implement proper routing
• Use proper error handling
• Configure proper security middleware
• Implement proper validation
• Use proper static file serving

API Design

• Use proper REST principles
• Implement proper versioning
• Use proper request validation
• Handle errors properly
• Implement proper response formats
• Document APIs properly

Database Integration

• Use proper ORM/ODM
• Implement proper migrations
• Use proper connection pooling
• Implement proper transactions
• Use proper query optimization
• Handle database errors properly

Authentication

• Implement proper JWT handling
• Use proper password hashing
• Implement proper session management
• Use proper OAuth integration
• Implement proper role-based access
• Handle auth errors properly

Security

• Use proper CORS setup
• Implement proper rate limiting
• Use proper security headers
• Implement proper input validation
• Use proper encryption
• Handle security vulnerabilities

Performance

• Use proper caching
• Implement proper async operations
• Use proper connection pooling
• Implement proper logging
• Use proper monitoring
• Handle high traffic properly

Testing

• Write proper unit tests
• Implement proper integration tests
• Use proper test runners
• Implement proper mocking
• Test error scenarios
• Use proper test coverage

Deployment

• Use proper Docker setup
• Implement proper CI/CD
• Use proper environment variables
• Configure proper logging
• Implement proper monitoring
• Handle deployment errors

Best Practices

• Follow Node.js best practices
• Use proper async/await
• Implement proper error handling
• Use proper logging
• Handle process signals properly
• Document code properly