What best practices and development standards should be followed when using Garfish in actual projects?

When using Garfish in actual projects, it's necessary to follow certain best practices and development standards to ensure project maintainability and scalability.

Project Architecture Design

1. Main Application Design

• Clear Responsibilities: Main application handles routing, sub-application loading, and global state management
• Lightweight: Avoid including too much business logic in the main application
• Unified Standards: Establish unified development standards and code style
• Example:

javascript
// Main application entry
import Garfish from 'garfish';

Garfish.run({
  apps: [
    {
      name: 'app1',
      entry: '//localhost:3001',
      activeWhen: '/app1',
      props: {
        shared: {
          userInfo: getUserInfo(),
          theme: getTheme()
        }
      }
    }
  ],
  beforeLoad: (app) => {
    console.log('Loading app:', app.name);
  }
});

2. Sub-application Design

• Independent Deployment: Each sub-application is developed and deployed independently
• Lifecycle Management: Correctly implement lifecycle hooks
• Resource Cleanup: Ensure complete resource cleanup when unmounting
• Example:

javascript
// Sub-application lifecycle
export async function bootstrap() {
  console.log('App bootstrap');
}

export async function mount(props) {
  const { container, shared } = props;
  ReactDOM.render(<App shared={shared} />, container);
}

export async function unmount(props) {
  const { container } = props;
  ReactDOM.unmountComponentAtNode(container);
}

Development Standards

1. Naming Conventions

• Application Names: Use lowercase letters and hyphens, e.g., user-center
• Route Prefixes: Consistent with application names
• Component Naming: Follow framework naming conventions
• Style Class Names: Use BEM or CSS Modules

2. Code Standards

• Unified Code Style: Use ESLint and Prettier
• Type Checking: Use TypeScript or Flow
• Code Review: Establish code review mechanisms
• Complete Documentation: Write clear documentation and comments

3. Version Management

• Semantic Versioning: Follow SemVer specification
• Version Compatibility: Ensure sub-application version compatibility
• Update Strategy: Establish version update strategies
• Rollback Mechanism: Prepare version rollback plans

Team Collaboration

1. Team Division

• Main Application Team: Responsible for main application development and maintenance
• Sub-application Teams: Responsible for developing their respective sub-applications
• Architecture Team: Responsible for overall architecture design and technology selection
• Testing Team: Responsible for integration testing and quality assurance

2. Collaboration Process

• Requirement Review: Unified review of cross-application requirements
• Interface Definition: Define inter-application interfaces in advance
• Integration Testing: Regular integration testing
• Release Coordination: Coordinate release timing of various applications

3. Communication Mechanisms

• Regular Meetings: Regular technical meetings
• Document Sharing: Share technical and design documents
• Issue Feedback: Establish issue feedback mechanisms
• Knowledge Sharing: Organize technical sharing sessions

Testing Strategy

1. Unit Testing

• Test Coverage: Ensure test coverage of core logic
• Test Isolation: Ensure tests are independent of each other
• Mock Dependencies: Use mocks to isolate external dependencies
• Example:

javascript
// Test lifecycle functions
describe('SubApp lifecycle', () => {
  it('should mount correctly', async () => {
    const container = document.createElement('div');
    await mount({ container });
    expect(container.innerHTML).not.toBe('');
  });
});

2. Integration Testing

• Application Integration: Test integration of main and sub-applications
• Route Testing: Test route switching and application loading
• Communication Testing: Test inter-application communication mechanisms
• Example:

javascript
// Test application loading
describe('App loading', () => {
  it('should load sub-app when route changes', async () => {
    await Garfish.router.push('/app1');
    expect(document.querySelector('#app1')).toBeTruthy();
  });
});

3. E2E Testing

• User Flows: Test complete user operation flows
• Cross-Application Scenarios: Test cross-application user scenarios
• Performance Testing: Test application performance metrics
• Example:

javascript
// E2E test
describe('User flow', () => {
  it('should complete user journey across apps', async () => {
    await page.goto('/');
    await page.click('#app1-link');
    await page.waitForSelector('#app1-content');
    await page.click('#navigate-to-app2');
    await page.waitForSelector('#app2-content');
  });
});

Deployment Strategy

1. Independent Deployment

• CI/CD Pipeline: Establish independent CI/CD pipelines for each application
• Environment Management: Manage development, testing, and production environments
• Release Strategy: Use canary releases or blue-green deployment
• Rollback Mechanism: Quickly rollback to stable versions

2. Resource Management

• CDN Acceleration: Use CDN to accelerate static resources
• Caching Strategy: Reasonably set resource caching
• Version Control: Use version numbers to manage resources
• Resource Compression: Compress JavaScript, CSS, and images

3. Monitoring and Alerts

• Performance Monitoring: Monitor application performance metrics
• Error Monitoring: Monitor application errors and exceptions
• User Behavior: Monitor user behavior and usage
• Alert Mechanism: Establish alert mechanisms to detect issues promptly

Common Problem Solutions

1. Style Conflicts

• Problem: Styles of different sub-applications affect each other
• Solution: Use style isolation solutions like Shadow DOM or CSS scoping

2. Difficult State Sharing

• Problem: Cross-application state sharing is complex
• Solution: Use Garfish's shared state mechanism or event bus

3. Performance Issues

• Problem: Slow application loading or runtime lag
• Solution: Optimize loading strategies, use code splitting and lazy loading

4. Difficult Debugging

• Problem: Micro-frontend debugging is complex
• Solution: Use debugging tools provided by Garfish and browser DevTools

By following these best practices, you can build high-quality, maintainable micro-frontend applications.