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

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.