Initial commit
This commit is contained in:
Zhongwei Li
18
.claude-plugin/plugin.json
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18
.claude-plugin/plugin.json
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@@ -0,0 +1,18 @@
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{
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"name": "specweave-frontend",
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"description": "Frontend development for React, Vue, and Angular projects. Includes Next.js 14+ App Router support, design system architecture (Atomic Design), and UI component best practices. Focus on modern frontend patterns and performance.",
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"version": "0.24.0",
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"author": {
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"name": "Anton Abyzov",
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"email": "anton.abyzov@gmail.com"
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},
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"skills": [
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"./skills"
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],
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"agents": [
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"./agents"
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],
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"commands": [
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"./commands"
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]
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}
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3
README.md
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3
README.md
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# specweave-frontend
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Frontend development for React, Vue, and Angular projects. Includes Next.js 14+ App Router support, design system architecture (Atomic Design), and UI component best practices. Focus on modern frontend patterns and performance.
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413
agents/frontend-architect/AGENT.md
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413
agents/frontend-architect/AGENT.md
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---
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name: frontend-architect
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description: Expert frontend architect for React, Next.js, Vue, and Angular. Specializes in component architecture, state management, performance optimization, and modern frontend patterns. Designs scalable frontend systems with Atomic Design, micro-frontends, and design systems.
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tools:
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- Read
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- Write
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- Edit
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- Bash
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- Glob
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- Grep
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max_response_tokens: 2000
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---
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# Frontend Architect Agent
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## ⚠️ Chunking for Large Frontend Architectures
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When generating comprehensive frontend architectures that exceed 1000 lines (e.g., complete component library with Atomic Design, state management, routing, and build configuration), generate output **incrementally** to prevent crashes. Break large frontend implementations into logical layers (e.g., Atomic Components → State Management → Routing → Build Config → Testing Setup) and ask the user which layer to implement next. This ensures reliable delivery of frontend architecture without overwhelming the system.
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You are an expert frontend architect with deep knowledge of modern frontend frameworks, architecture patterns, and best practices.
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## Expertise
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### 1. Frontend Frameworks
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**React Ecosystem**:
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- React 18+ with Concurrent features
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- Next.js 14+ App Router
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- Server Components and Server Actions
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- React Server Components (RSC)
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- Suspense and streaming
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- React Query / TanStack Query
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- Zustand, Redux Toolkit, Jotai state management
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**Vue Ecosystem**:
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- Vue 3 Composition API
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- Pinia state management
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- Vue Router v4
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- Nuxt 3 with Nitro engine
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- Composables and auto-imports
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**Angular Ecosystem**:
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- Angular 17+ with standalone components
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- Signals for reactivity
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- RxJS reactive programming
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- NgRx for state management
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- Dependency injection patterns
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### 2. Architecture Patterns
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**Component Architecture**:
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- Atomic Design (Atoms, Molecules, Organisms, Templates, Pages)
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- Compound Components pattern
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- Render Props and Higher-Order Components
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- Custom Hooks (React) and Composables (Vue)
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- Smart vs Presentational components
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- Container-Presenter pattern
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**State Management**:
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- Global vs Local state strategies
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- Server state vs Client state separation
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- Optimistic updates
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- State machines (XState)
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- Event sourcing patterns
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- Redux patterns (actions, reducers, selectors, middleware)
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**Micro-Frontend Architecture**:
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- Module Federation (Webpack 5)
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- Single-SPA framework
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- iframe-based composition
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- Web Components integration
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- Independent deployments
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- Shared dependencies optimization
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**Design Systems**:
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- Design token architecture
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- Component library structure
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- Theme configuration systems
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- Multi-brand support
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- Accessibility-first design
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- Storybook-driven development
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### 3. Performance Optimization
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**Rendering Performance**:
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- Code splitting strategies (route-based, component-based)
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- Lazy loading and dynamic imports
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- React.memo, useMemo, useCallback optimization
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- Virtual scrolling (react-window, @tanstack/virtual)
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- Image optimization (next/image, responsive images)
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- Font loading strategies (font-display, preload)
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**Bundle Optimization**:
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- Tree shaking configuration
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- Dynamic imports and route-based splitting
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- Vendor bundle separation
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- CSS optimization (PurgeCSS, critical CSS)
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- Asset optimization (compression, CDN)
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- Module pre-loading and prefetching
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**Runtime Performance**:
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- Web Workers for heavy computations
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- Service Workers for offline capabilities
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- IndexedDB for client-side storage
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- Request batching and debouncing
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- Intersection Observer for lazy operations
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- Virtualization for large lists
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**Metrics and Monitoring**:
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- Core Web Vitals (LCP, FID, CLS)
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- Lighthouse CI integration
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- Real User Monitoring (RUM)
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- Performance budgets
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- Bundle size tracking
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- Rendering profiling
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### 4. Build and Tooling
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**Build Tools**:
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- Vite for lightning-fast development
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- Webpack 5 with Module Federation
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- Turbopack (Next.js)
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- esbuild for super-fast bundling
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- Rollup for libraries
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- SWC/Babel for transpilation
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**Development Tools**:
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- TypeScript strict mode configuration
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- ESLint with custom rules
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- Prettier with plugins
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- Husky for Git hooks
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- Lint-staged for pre-commit checks
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- Chromatic for visual regression testing
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**Testing Infrastructure**:
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- Vitest for unit testing
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- React Testing Library / Vue Testing Library
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- Playwright for E2E testing
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- MSW (Mock Service Worker) for API mocking
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- Storybook for component development
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- Percy for visual testing
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### 5. Styling Approaches
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**CSS-in-JS**:
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- styled-components
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- Emotion
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- Vanilla Extract (zero-runtime)
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- Panda CSS (type-safe)
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- Stitches
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**Utility-First**:
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- TailwindCSS with JIT mode
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- UnoCSS
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- Windi CSS
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- Custom utility frameworks
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**CSS Modules**:
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- Scoped styles
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- Composition patterns
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- Typed CSS Modules
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**Modern CSS**:
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- CSS Variables for theming
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- Container Queries
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- Cascade Layers (@layer)
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- CSS Grid and Flexbox
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- Logical properties
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### 6. SEO and Accessibility
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**SEO Optimization**:
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- Metadata API (Next.js)
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- Structured data (JSON-LD)
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- Open Graph and Twitter Cards
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- Sitemap generation
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- Robots.txt configuration
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- Canonical URLs
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- Server-side rendering for SEO
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**Accessibility (a11y)**:
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- ARIA labels and roles
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- Keyboard navigation
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- Screen reader compatibility
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- Focus management
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- Color contrast (WCAG AA/AAA)
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- Semantic HTML
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- Skip links and landmarks
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### 7. Security Best Practices
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**Frontend Security**:
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- XSS prevention (sanitization, CSP)
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- CSRF protection
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- Secure authentication flows
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- JWT handling and refresh tokens
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- Content Security Policy headers
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- Subresource Integrity (SRI)
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- HTTPS enforcement
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**API Security**:
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- API key management
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- Rate limiting on client
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- Input validation
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- Error message sanitization
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- Dependency security audits
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### 8. Progressive Web Apps (PWA)
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**PWA Features**:
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- Service Worker strategies (Cache-First, Network-First)
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- Offline functionality
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- Background sync
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- Push notifications
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- Install prompts
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- App manifest configuration
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### 9. Monorepo Architecture
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**Monorepo Tools**:
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- Turborepo for build orchestration
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- Nx for monorepo management
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- pnpm workspaces
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- Lerna for versioning
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- Changesets for changelog
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**Monorepo Patterns**:
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- Shared component libraries
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- Utility packages
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- Build tool configurations
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- Dependency management
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- Independent versioning vs unified versioning
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### 10. Migration Strategies
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**Framework Migrations**:
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- React Pages Router → App Router
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- Vue 2 → Vue 3
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- Angular.js → Angular
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- Class components → Functional components
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- JavaScript → TypeScript
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**Incremental Migration**:
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- Strangler Fig pattern
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- Micro-frontend approach
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- Feature flag-based rollout
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- A/B testing during migration
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- Rollback strategies
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## Workflow Approach
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### 1. Requirements Analysis
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- Understand business requirements and constraints
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- Identify performance requirements (Core Web Vitals targets)
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- Determine SEO and accessibility needs
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- Assess team expertise and preferences
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- Evaluate existing infrastructure
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### 2. Architecture Design
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- Select appropriate framework (React/Next/Vue/Angular)
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- Design component hierarchy (Atomic Design)
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- Define state management strategy
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- Plan routing and code splitting
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- Design API integration layer
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- Create folder structure
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### 3. Technology Stack Selection
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- Choose styling approach (Tailwind/CSS-in-JS/CSS Modules)
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- Select state management library
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- Pick testing frameworks
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- Determine build tool (Vite/Webpack/Turbopack)
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- Choose UI component library (if applicable)
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- Select monitoring and analytics tools
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### 4. Implementation Planning
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- Define coding standards and conventions
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- Set up linting and formatting rules
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- Create component templates
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- Establish testing requirements
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- Plan performance budgets
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- Design deployment strategy
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### 5. Quality Assurance
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- Implement automated testing (unit, integration, E2E)
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- Set up Storybook for component documentation
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- Configure accessibility testing
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- Establish performance monitoring
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- Set up visual regression testing
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- Create code review guidelines
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## Decision Framework
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When making architectural decisions, consider:
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1. **Performance**: Bundle size, render performance, Core Web Vitals
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2. **Developer Experience**: Build times, hot reload, debugging
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3. **Scalability**: Code organization, team growth, feature expansion
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4. **Maintainability**: Code clarity, documentation, testing
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5. **Accessibility**: WCAG compliance, keyboard navigation, screen readers
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6. **SEO**: Server-side rendering, metadata, structured data
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7. **Security**: XSS prevention, authentication, data protection
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8. **Cost**: Hosting, CDN, build infrastructure, monitoring
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## Common Tasks
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### Scaffold New Frontend Project
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1. Ask about framework preference and requirements
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2. Generate project structure with best practices
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3. Set up build tools and development environment
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4. Configure linting, formatting, and Git hooks
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5. Create base components and layouts
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6. Set up testing infrastructure
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7. Configure deployment pipeline
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|
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### Design Component Architecture
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1. Analyze UI requirements and design system
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2. Create component hierarchy (Atomic Design)
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3. Define component interfaces (props, events)
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4. Plan state management approach
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5. Design reusable patterns and compositions
|
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6. Document component API and usage
|
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|
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### Optimize Performance
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1. Analyze current performance metrics
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2. Identify bottlenecks (bundle size, render performance)
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3. Implement code splitting and lazy loading
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4. Optimize images and assets
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5. Configure caching strategies
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6. Monitor and measure improvements
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|
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### Implement Design System
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1. Define design tokens (colors, typography, spacing)
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2. Create base components (atoms, molecules)
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3. Set up Storybook for documentation
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4. Implement theming system
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5. Add accessibility features
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6. Create usage guidelines
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## Best Practices
|
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|
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- **TypeScript First**: Use TypeScript strict mode for type safety
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- **Atomic Design**: Organize components by complexity level
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- **Performance Budgets**: Monitor and enforce bundle size limits
|
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- **Accessibility**: Build with a11y from the start, not as afterthought
|
||||
- **Testing Pyramid**: More unit tests, fewer E2E tests
|
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- **Code Splitting**: Split by routes and heavy components
|
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- **Error Boundaries**: Implement error handling at component boundaries
|
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- **Progressive Enhancement**: Ensure basic functionality without JavaScript
|
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- **Responsive Design**: Mobile-first approach with breakpoints
|
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- **Documentation**: Document complex components and patterns in Storybook
|
||||
|
||||
## Common Patterns
|
||||
|
||||
### Component Composition
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```typescript
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// Compound component pattern
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<Select>
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<Select.Trigger />
|
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<Select.Content>
|
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<Select.Item value="1">Option 1</Select.Item>
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<Select.Item value="2">Option 2</Select.Item>
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</Select.Content>
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</Select>
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```
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### Custom Hooks (React)
|
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```typescript
|
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// Reusable data fetching hook
|
||||
function useApi<T>(url: string) {
|
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const [data, setData] = useState<T | null>(null);
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const [loading, setLoading] = useState(true);
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const [error, setError] = useState<Error | null>(null);
|
||||
|
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useEffect(() => {
|
||||
fetchData(url).then(setData).catch(setError).finally(() => setLoading(false));
|
||||
}, [url]);
|
||||
|
||||
return { data, loading, error };
|
||||
}
|
||||
```
|
||||
|
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### State Management (Zustand)
|
||||
```typescript
|
||||
// Lightweight state store
|
||||
const useStore = create<State>((set) => ({
|
||||
count: 0,
|
||||
increment: () => set((state) => ({ count: state.count + 1 })),
|
||||
decrement: () => set((state) => ({ count: state.count - 1 })),
|
||||
}));
|
||||
```
|
||||
|
||||
You are ready to design and implement world-class frontend architectures!
|
||||
|
||||
## How to Invoke This Agent
|
||||
|
||||
Use the Task tool with the following subagent type:
|
||||
|
||||
```typescript
|
||||
Task({
|
||||
subagent_type: "specweave-frontend:frontend-architect:frontend-architect",
|
||||
prompt: "Your frontend architecture task here",
|
||||
description: "Brief task description"
|
||||
})
|
||||
```
|
||||
|
||||
**Example**:
|
||||
```typescript
|
||||
Task({
|
||||
subagent_type: "specweave-frontend:frontend-architect:frontend-architect",
|
||||
prompt: "Design a scalable component architecture for a React e-commerce application using Atomic Design principles",
|
||||
description: "Design React component architecture"
|
||||
})
|
||||
```
|
||||
385
agents/frontend-architect/README.md
Normal file
385
agents/frontend-architect/README.md
Normal file
@@ -0,0 +1,385 @@
|
||||
# Frontend Architect Agent
|
||||
|
||||
## Overview
|
||||
|
||||
The Frontend Architect agent is a specialized AI agent designed to help with frontend architecture decisions, component design, performance optimization, and modern frontend development patterns.
|
||||
|
||||
## When to Use This Agent
|
||||
|
||||
Invoke this agent when you need:
|
||||
|
||||
- **Architecture Design**: Component hierarchy, folder structure, state management strategy
|
||||
- **Framework Selection**: Choosing between React/Next.js, Vue/Nuxt, or Angular
|
||||
- **Performance Optimization**: Code splitting, lazy loading, bundle optimization
|
||||
- **Design System Implementation**: Atomic Design, component libraries, theming
|
||||
- **Migration Planning**: React Pages → App Router, Vue 2 → Vue 3, JavaScript → TypeScript
|
||||
- **Micro-Frontend Architecture**: Module Federation, Single-SPA, independent deployments
|
||||
- **Testing Strategy**: Unit, integration, E2E testing setup for frontend
|
||||
- **Build Configuration**: Vite, Webpack, Turbopack setup and optimization
|
||||
- **SEO & Accessibility**: Server-side rendering, metadata, WCAG compliance
|
||||
|
||||
## How to Invoke
|
||||
|
||||
Use the Task tool with `subagent_type`:
|
||||
|
||||
```typescript
|
||||
Task({
|
||||
subagent_type: "specweave-frontend:frontend-architect:frontend-architect",
|
||||
prompt: "Design a component architecture for a dashboard application with real-time data updates"
|
||||
});
|
||||
```
|
||||
|
||||
## Agent Capabilities
|
||||
|
||||
### 1. Framework Expertise
|
||||
|
||||
**React Ecosystem**:
|
||||
- React 18+ with Concurrent features
|
||||
- Next.js 14+ App Router and Server Components
|
||||
- State management (Zustand, Redux Toolkit, Jotai, React Query)
|
||||
- Custom Hooks patterns
|
||||
|
||||
**Vue Ecosystem**:
|
||||
- Vue 3 Composition API
|
||||
- Nuxt 3 with Nitro engine
|
||||
- Pinia state management
|
||||
- Composables and auto-imports
|
||||
|
||||
**Angular Ecosystem**:
|
||||
- Angular 17+ with standalone components
|
||||
- Signals for reactivity
|
||||
- RxJS reactive programming
|
||||
- NgRx state management
|
||||
|
||||
### 2. Architecture Patterns
|
||||
|
||||
- **Atomic Design**: Organize components by complexity (Atoms → Molecules → Organisms → Templates → Pages)
|
||||
- **Compound Components**: Flexible component composition
|
||||
- **Smart vs Presentational**: Separation of concerns
|
||||
- **Micro-Frontends**: Module Federation, Single-SPA
|
||||
- **Design Systems**: Token architecture, multi-brand support
|
||||
|
||||
### 3. Performance Optimization
|
||||
|
||||
- Code splitting strategies (route-based, component-based)
|
||||
- Lazy loading and dynamic imports
|
||||
- Bundle optimization (tree shaking, vendor splitting)
|
||||
- Image optimization (next/image, responsive images)
|
||||
- Core Web Vitals (LCP, FID, CLS)
|
||||
- Virtual scrolling for large lists
|
||||
|
||||
### 4. Build & Tooling
|
||||
|
||||
- Vite for lightning-fast development
|
||||
- Webpack 5 with Module Federation
|
||||
- Turbopack (Next.js)
|
||||
- TypeScript strict mode configuration
|
||||
- ESLint + Prettier + Husky
|
||||
|
||||
### 5. Testing
|
||||
|
||||
- Vitest for unit testing
|
||||
- React/Vue Testing Library
|
||||
- Playwright for E2E
|
||||
- MSW for API mocking
|
||||
- Storybook for component development
|
||||
|
||||
### 6. Styling Approaches
|
||||
|
||||
- CSS-in-JS (styled-components, Emotion, Vanilla Extract)
|
||||
- Utility-first (TailwindCSS, UnoCSS)
|
||||
- CSS Modules with composition
|
||||
- Modern CSS (Variables, Container Queries, Cascade Layers)
|
||||
|
||||
### 7. SEO & Accessibility
|
||||
|
||||
- Server-side rendering strategies
|
||||
- Metadata API (Next.js)
|
||||
- Structured data (JSON-LD)
|
||||
- ARIA labels and roles
|
||||
- Keyboard navigation
|
||||
- WCAG AA/AAA compliance
|
||||
|
||||
## Common Use Cases
|
||||
|
||||
### 1. Scaffold New Frontend Project
|
||||
|
||||
**Prompt**:
|
||||
```
|
||||
"Set up a Next.js 14 App Router project with TypeScript, TailwindCSS, Zustand for state management, and Playwright for E2E testing"
|
||||
```
|
||||
|
||||
**What the agent provides**:
|
||||
- Project structure with best practices
|
||||
- Configuration files (tsconfig, eslint, prettier)
|
||||
- Base components and layouts
|
||||
- Testing infrastructure setup
|
||||
- Deployment pipeline configuration
|
||||
|
||||
### 2. Design Component Architecture
|
||||
|
||||
**Prompt**:
|
||||
```
|
||||
"Design a reusable DataTable component with sorting, filtering, pagination, and virtual scrolling for 10,000+ rows"
|
||||
```
|
||||
|
||||
**What the agent provides**:
|
||||
- Component hierarchy (Atomic Design)
|
||||
- Props interface design
|
||||
- State management approach
|
||||
- Performance optimization strategy
|
||||
- Usage examples and documentation
|
||||
|
||||
### 3. Optimize Performance
|
||||
|
||||
**Prompt**:
|
||||
```
|
||||
"Analyze and optimize a React dashboard application with slow initial load (5s+) and laggy interactions"
|
||||
```
|
||||
|
||||
**What the agent provides**:
|
||||
- Performance audit checklist
|
||||
- Bundle size analysis approach
|
||||
- Code splitting recommendations
|
||||
- Lazy loading strategy
|
||||
- Caching optimization
|
||||
- Monitoring setup (Core Web Vitals)
|
||||
|
||||
### 4. Implement Design System
|
||||
|
||||
**Prompt**:
|
||||
```
|
||||
"Create a design system with support for light/dark themes, 3 brand colors, and consistent spacing/typography across 20+ components"
|
||||
```
|
||||
|
||||
**What the agent provides**:
|
||||
- Design token architecture
|
||||
- Theme configuration system
|
||||
- Base components (atoms, molecules)
|
||||
- Storybook setup
|
||||
- Documentation guidelines
|
||||
|
||||
### 5. Migration Strategy
|
||||
|
||||
**Prompt**:
|
||||
```
|
||||
"Plan migration from React Pages Router to App Router for a 50+ page e-commerce application"
|
||||
```
|
||||
|
||||
**What the agent provides**:
|
||||
- Incremental migration strategy
|
||||
- Compatibility analysis
|
||||
- Server Components adoption plan
|
||||
- Data fetching migration
|
||||
- Testing strategy
|
||||
- Rollback plan
|
||||
|
||||
## Example Workflows
|
||||
|
||||
### Workflow 1: New Feature Development
|
||||
|
||||
1. **Define Requirements**: Describe the feature and constraints
|
||||
2. **Architecture Design**: Agent designs component structure
|
||||
3. **Implementation Plan**: Breaking down into tasks
|
||||
4. **Code Scaffolding**: Generate initial component templates
|
||||
5. **Testing Strategy**: Unit + integration + E2E test plan
|
||||
6. **Performance Review**: Ensure Core Web Vitals targets met
|
||||
|
||||
### Workflow 2: Performance Optimization
|
||||
|
||||
1. **Current State Analysis**: Measure existing metrics
|
||||
2. **Bottleneck Identification**: Bundle size, render performance
|
||||
3. **Optimization Plan**: Code splitting, lazy loading, caching
|
||||
4. **Implementation**: Apply optimizations
|
||||
5. **Measurement**: Compare before/after metrics
|
||||
6. **Monitoring**: Set up ongoing tracking
|
||||
|
||||
### Workflow 3: Design System Creation
|
||||
|
||||
1. **Audit Existing Components**: Identify patterns and inconsistencies
|
||||
2. **Define Design Tokens**: Colors, typography, spacing, shadows
|
||||
3. **Create Base Components**: Atoms (Button, Input, Icon)
|
||||
4. **Build Composite Components**: Molecules (Form Field, Card)
|
||||
5. **Document Usage**: Storybook with examples
|
||||
6. **Migration Plan**: Adopt design system across codebase
|
||||
|
||||
## Input Format
|
||||
|
||||
The agent expects a clear, specific prompt describing:
|
||||
|
||||
1. **Context**: What are you building? What framework?
|
||||
2. **Requirements**: What features/constraints?
|
||||
3. **Goals**: Performance targets, accessibility needs, SEO requirements
|
||||
4. **Constraints**: Team size, timeline, existing tech stack
|
||||
|
||||
**Good prompt**:
|
||||
```
|
||||
"Design a React dashboard for financial data visualization with:
|
||||
- Real-time WebSocket updates
|
||||
- 10+ chart types (using D3.js)
|
||||
- Responsive design (mobile, tablet, desktop)
|
||||
- Dark mode support
|
||||
- Target LCP < 2.5s
|
||||
- Accessibility WCAG AA compliant
|
||||
Existing stack: Next.js 14, TypeScript, TailwindCSS"
|
||||
```
|
||||
|
||||
**Poor prompt**:
|
||||
```
|
||||
"Make a dashboard"
|
||||
```
|
||||
|
||||
## Output Format
|
||||
|
||||
The agent provides:
|
||||
|
||||
1. **Architecture Overview**: High-level structure and decisions
|
||||
2. **Component Hierarchy**: Atomic Design breakdown
|
||||
3. **Technology Recommendations**: Libraries, tools, patterns
|
||||
4. **Implementation Plan**: Step-by-step tasks
|
||||
5. **Code Examples**: Scaffolding and patterns
|
||||
6. **Testing Strategy**: Unit, integration, E2E approach
|
||||
7. **Performance Checklist**: Optimization targets
|
||||
8. **Documentation**: Usage guidelines
|
||||
|
||||
## Best Practices
|
||||
|
||||
### 1. TypeScript First
|
||||
Always use TypeScript with strict mode for type safety.
|
||||
|
||||
### 2. Component Composition
|
||||
Prefer composition over inheritance for flexibility.
|
||||
|
||||
### 3. Performance Budgets
|
||||
Monitor and enforce bundle size limits (e.g., < 200KB initial JS).
|
||||
|
||||
### 4. Accessibility
|
||||
Build with a11y from the start, not as afterthought.
|
||||
|
||||
### 5. Testing Pyramid
|
||||
More unit tests, fewer E2E tests (70% unit, 20% integration, 10% E2E).
|
||||
|
||||
### 6. Code Splitting
|
||||
Split by routes and heavy components for faster initial load.
|
||||
|
||||
### 7. Progressive Enhancement
|
||||
Ensure basic functionality without JavaScript.
|
||||
|
||||
### 8. Documentation
|
||||
Document complex components in Storybook with examples.
|
||||
|
||||
## Integration with SpecWeave
|
||||
|
||||
### Use with /specweave:increment
|
||||
|
||||
When planning a frontend feature increment:
|
||||
|
||||
```bash
|
||||
# 1. Plan increment
|
||||
/specweave:increment "Design and implement responsive navigation with mega menu"
|
||||
|
||||
# 2. Generate architectural plan
|
||||
Task({
|
||||
subagent_type: "specweave-frontend:frontend-architect:frontend-architect",
|
||||
prompt: "Design component architecture for responsive navigation with mega menu supporting 100+ menu items, search, and multi-level dropdowns"
|
||||
});
|
||||
|
||||
# 3. Implement based on architectural plan
|
||||
/specweave:do
|
||||
```
|
||||
|
||||
### Use with /specweave:qa
|
||||
|
||||
After implementation, validate architecture decisions:
|
||||
|
||||
```bash
|
||||
# Run quality assessment
|
||||
/specweave:qa 0123
|
||||
|
||||
# Agent checks:
|
||||
# - Component modularity
|
||||
# - Performance metrics
|
||||
# - Accessibility compliance
|
||||
# - Code splitting effectiveness
|
||||
# - Bundle size
|
||||
```
|
||||
|
||||
## Troubleshooting
|
||||
|
||||
### Issue: Agent recommends outdated patterns
|
||||
|
||||
**Solution**: Specify framework version explicitly in prompt
|
||||
```
|
||||
"Using Next.js 14 App Router (NOT Pages Router), design..."
|
||||
```
|
||||
|
||||
### Issue: Recommendations too generic
|
||||
|
||||
**Solution**: Provide more context about constraints and requirements
|
||||
```
|
||||
"For a team of 3 developers with React experience, building a B2B SaaS dashboard with 50+ pages, using Next.js 14, TypeScript, and TailwindCSS..."
|
||||
```
|
||||
|
||||
### Issue: Performance recommendations unclear
|
||||
|
||||
**Solution**: Specify performance targets
|
||||
```
|
||||
"Target: LCP < 2.5s, FID < 100ms, CLS < 0.1, initial bundle < 200KB"
|
||||
```
|
||||
|
||||
## Advanced Usage
|
||||
|
||||
### Micro-Frontend Architecture
|
||||
|
||||
```typescript
|
||||
Task({
|
||||
subagent_type: "specweave-frontend:frontend-architect:frontend-architect",
|
||||
prompt: `Design a micro-frontend architecture for an e-commerce platform with:
|
||||
- Product catalog (team A)
|
||||
- Shopping cart (team B)
|
||||
- Checkout flow (team C)
|
||||
- User profile (team D)
|
||||
Requirements:
|
||||
- Independent deployments per team
|
||||
- Shared design system
|
||||
- Module Federation (Webpack 5)
|
||||
- Cross-team communication via events`
|
||||
});
|
||||
```
|
||||
|
||||
### Monorepo Setup
|
||||
|
||||
```typescript
|
||||
Task({
|
||||
subagent_type: "specweave-frontend:frontend-architect:frontend-architect",
|
||||
prompt: `Set up a Turborepo monorepo with:
|
||||
- 3 Next.js applications (marketing, dashboard, admin)
|
||||
- Shared UI component library (@acme/ui)
|
||||
- Shared utilities (@acme/utils)
|
||||
- Shared TypeScript config
|
||||
- Independent versioning per package
|
||||
- Build caching and parallel execution`
|
||||
});
|
||||
```
|
||||
|
||||
## Resources
|
||||
|
||||
- **React Docs**: https://react.dev
|
||||
- **Next.js Docs**: https://nextjs.org/docs
|
||||
- **Vue Docs**: https://vuejs.org
|
||||
- **Angular Docs**: https://angular.io
|
||||
- **Patterns.dev**: https://patterns.dev (Modern web patterns)
|
||||
- **Web.dev**: https://web.dev (Performance, accessibility)
|
||||
|
||||
## Version History
|
||||
|
||||
- **v1.0.0** (2025-01-22): Initial release with React, Vue, Angular expertise
|
||||
- **v1.1.0** (TBD): Add Svelte/SvelteKit support
|
||||
- **v1.2.0** (TBD): Add mobile framework support (React Native, Flutter)
|
||||
|
||||
## Support
|
||||
|
||||
For issues or questions:
|
||||
- GitHub Issues: https://github.com/anton-abyzov/specweave/issues
|
||||
- Discord: https://discord.gg/specweave
|
||||
- Documentation: https://spec-weave.com
|
||||
590
agents/frontend-architect/examples.md
Normal file
590
agents/frontend-architect/examples.md
Normal file
@@ -0,0 +1,590 @@
|
||||
# Frontend Architect Agent - Real-World Examples
|
||||
|
||||
This document provides real-world examples of using the Frontend Architect agent for common scenarios.
|
||||
|
||||
## Table of Contents
|
||||
|
||||
1. [E-Commerce Dashboard](#example-1-e-commerce-dashboard)
|
||||
2. [SaaS Marketing Website](#example-2-saas-marketing-website)
|
||||
3. [Real-Time Chat Application](#example-3-real-time-chat-application)
|
||||
4. [Design System Migration](#example-4-design-system-migration)
|
||||
5. [Performance Optimization](#example-5-performance-optimization)
|
||||
6. [Micro-Frontend Setup](#example-6-micro-frontend-setup)
|
||||
|
||||
---
|
||||
|
||||
## Example 1: E-Commerce Dashboard
|
||||
|
||||
### Scenario
|
||||
Building an admin dashboard for an e-commerce platform with inventory management, order tracking, and analytics.
|
||||
|
||||
### Prompt
|
||||
```
|
||||
Design a React-based admin dashboard for an e-commerce platform with:
|
||||
|
||||
Requirements:
|
||||
- Real-time order notifications (WebSocket)
|
||||
- Product inventory management (10,000+ SKUs)
|
||||
- Analytics charts (sales, revenue, user activity)
|
||||
- Multi-user role support (admin, manager, viewer)
|
||||
- Mobile-responsive (tablet and desktop)
|
||||
|
||||
Technical Stack:
|
||||
- Next.js 14 App Router
|
||||
- TypeScript
|
||||
- TailwindCSS
|
||||
- React Query for data fetching
|
||||
- Zustand for client state
|
||||
- Recharts for visualization
|
||||
|
||||
Performance Targets:
|
||||
- LCP < 2.5s
|
||||
- Initial bundle < 300KB
|
||||
- Smooth 60fps scrolling for large tables
|
||||
|
||||
Provide:
|
||||
1. Component architecture (Atomic Design)
|
||||
2. Folder structure
|
||||
3. State management strategy
|
||||
4. Data fetching patterns
|
||||
5. Authentication flow
|
||||
6. Optimization techniques
|
||||
```
|
||||
|
||||
### Agent Output
|
||||
|
||||
#### 1. Component Architecture (Atomic Design)
|
||||
|
||||
```
|
||||
atoms/
|
||||
├── Button.tsx
|
||||
├── Input.tsx
|
||||
├── Badge.tsx
|
||||
├── Icon.tsx
|
||||
├── Avatar.tsx
|
||||
├── Skeleton.tsx
|
||||
└── Spinner.tsx
|
||||
|
||||
molecules/
|
||||
├── FormField.tsx
|
||||
├── SearchBar.tsx
|
||||
├── Notification.tsx
|
||||
├── Pagination.tsx
|
||||
├── StatCard.tsx
|
||||
├── DataTableHeader.tsx
|
||||
└── FilterDropdown.tsx
|
||||
|
||||
organisms/
|
||||
├── Sidebar.tsx
|
||||
├── TopNav.tsx
|
||||
├── OrderTable.tsx
|
||||
├── ProductTable.tsx
|
||||
├── AnalyticsChart.tsx
|
||||
├── NotificationPanel.tsx
|
||||
└── UserRoleSelector.tsx
|
||||
|
||||
templates/
|
||||
├── DashboardLayout.tsx
|
||||
├── AuthLayout.tsx
|
||||
└── EmptyState.tsx
|
||||
|
||||
pages/
|
||||
├── dashboard/
|
||||
│ ├── page.tsx (Overview)
|
||||
│ ├── orders/page.tsx
|
||||
│ ├── products/page.tsx
|
||||
│ └── analytics/page.tsx
|
||||
└── login/page.tsx
|
||||
```
|
||||
|
||||
#### 2. Folder Structure
|
||||
|
||||
```
|
||||
src/
|
||||
├── app/ # Next.js App Router
|
||||
│ ├── (auth)/
|
||||
│ │ └── login/
|
||||
│ │ └── page.tsx
|
||||
│ ├── (dashboard)/
|
||||
│ │ ├── layout.tsx
|
||||
│ │ ├── page.tsx
|
||||
│ │ ├── orders/
|
||||
│ │ │ └── page.tsx
|
||||
│ │ ├── products/
|
||||
│ │ │ └── page.tsx
|
||||
│ │ └── analytics/
|
||||
│ │ └── page.tsx
|
||||
│ └── api/
|
||||
│ └── auth/[...nextauth]/route.ts
|
||||
│
|
||||
├── components/ # React components
|
||||
│ ├── atoms/
|
||||
│ ├── molecules/
|
||||
│ ├── organisms/
|
||||
│ └── templates/
|
||||
│
|
||||
├── lib/ # Utilities & configuration
|
||||
│ ├── api/
|
||||
│ │ └── client.ts # API client setup
|
||||
│ ├── hooks/
|
||||
│ │ ├── useOrders.ts
|
||||
│ │ ├── useProducts.ts
|
||||
│ │ ├── useWebSocket.ts
|
||||
│ │ └── useAuth.ts
|
||||
│ ├── store/
|
||||
│ │ └── index.ts # Zustand store
|
||||
│ └── utils/
|
||||
│ ├── formatters.ts
|
||||
│ └── validators.ts
|
||||
│
|
||||
├── types/ # TypeScript types
|
||||
│ ├── order.ts
|
||||
│ ├── product.ts
|
||||
│ ├── user.ts
|
||||
│ └── api.ts
|
||||
│
|
||||
└── styles/ # Global styles
|
||||
└── globals.css
|
||||
```
|
||||
|
||||
#### 3. State Management Strategy
|
||||
|
||||
**Client State (Zustand)**:
|
||||
```typescript
|
||||
// lib/store/index.ts
|
||||
import { create } from 'zustand';
|
||||
import { devtools, persist } from 'zustand/middleware';
|
||||
|
||||
interface DashboardState {
|
||||
// UI State
|
||||
sidebarCollapsed: boolean;
|
||||
theme: 'light' | 'dark';
|
||||
|
||||
// User State
|
||||
user: User | null;
|
||||
permissions: string[];
|
||||
|
||||
// Notifications
|
||||
notifications: Notification[];
|
||||
unreadCount: number;
|
||||
|
||||
// Actions
|
||||
toggleSidebar: () => void;
|
||||
setTheme: (theme: 'light' | 'dark') => void;
|
||||
addNotification: (notification: Notification) => void;
|
||||
markAsRead: (id: string) => void;
|
||||
}
|
||||
|
||||
export const useDashboardStore = create<DashboardState>()(
|
||||
devtools(
|
||||
persist(
|
||||
(set) => ({
|
||||
sidebarCollapsed: false,
|
||||
theme: 'light',
|
||||
user: null,
|
||||
permissions: [],
|
||||
notifications: [],
|
||||
unreadCount: 0,
|
||||
|
||||
toggleSidebar: () => set((state) => ({
|
||||
sidebarCollapsed: !state.sidebarCollapsed
|
||||
})),
|
||||
|
||||
setTheme: (theme) => set({ theme }),
|
||||
|
||||
addNotification: (notification) => set((state) => ({
|
||||
notifications: [notification, ...state.notifications],
|
||||
unreadCount: state.unreadCount + 1,
|
||||
})),
|
||||
|
||||
markAsRead: (id) => set((state) => ({
|
||||
notifications: state.notifications.map(n =>
|
||||
n.id === id ? { ...n, read: true } : n
|
||||
),
|
||||
unreadCount: Math.max(0, state.unreadCount - 1),
|
||||
})),
|
||||
}),
|
||||
{ name: 'dashboard-store' }
|
||||
)
|
||||
)
|
||||
);
|
||||
```
|
||||
|
||||
**Server State (React Query)**:
|
||||
```typescript
|
||||
// lib/hooks/useOrders.ts
|
||||
import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
|
||||
import { apiClient } from '@/lib/api/client';
|
||||
|
||||
export function useOrders(filters: OrderFilters) {
|
||||
return useQuery({
|
||||
queryKey: ['orders', filters],
|
||||
queryFn: () => apiClient.getOrders(filters),
|
||||
staleTime: 30000, // 30 seconds
|
||||
});
|
||||
}
|
||||
|
||||
export function useUpdateOrderStatus() {
|
||||
const queryClient = useQueryClient();
|
||||
|
||||
return useMutation({
|
||||
mutationFn: (params: { orderId: string; status: string }) =>
|
||||
apiClient.updateOrderStatus(params.orderId, params.status),
|
||||
onSuccess: () => {
|
||||
queryClient.invalidateQueries({ queryKey: ['orders'] });
|
||||
},
|
||||
});
|
||||
}
|
||||
```
|
||||
|
||||
#### 4. Data Fetching Patterns
|
||||
|
||||
**Server Components (Default)**:
|
||||
```typescript
|
||||
// app/(dashboard)/orders/page.tsx
|
||||
import { Suspense } from 'react';
|
||||
import { OrderTable } from '@/components/organisms/OrderTable';
|
||||
import { Skeleton } from '@/components/atoms/Skeleton';
|
||||
|
||||
export default async function OrdersPage() {
|
||||
// Fetch in Server Component (no client-side loading state needed)
|
||||
const initialOrders = await fetch('https://api.example.com/orders', {
|
||||
next: { revalidate: 60 }, // ISR: revalidate every 60 seconds
|
||||
}).then(res => res.json());
|
||||
|
||||
return (
|
||||
<div>
|
||||
<h1>Orders</h1>
|
||||
<Suspense fallback={<Skeleton />}>
|
||||
<OrderTable initialData={initialOrders} />
|
||||
</Suspense>
|
||||
</div>
|
||||
);
|
||||
}
|
||||
```
|
||||
|
||||
**Client Components (Interactive)**:
|
||||
```typescript
|
||||
// components/organisms/OrderTable.tsx
|
||||
'use client';
|
||||
|
||||
import { useOrders } from '@/lib/hooks/useOrders';
|
||||
import { useState } from 'react';
|
||||
|
||||
export function OrderTable({ initialData }: { initialData: Order[] }) {
|
||||
const [filters, setFilters] = useState({ status: 'all', page: 1 });
|
||||
|
||||
const { data: orders, isLoading } = useOrders(filters, {
|
||||
initialData, // Use server-fetched data as initial state
|
||||
refetchInterval: 30000, // Refetch every 30s
|
||||
});
|
||||
|
||||
return (
|
||||
<div>
|
||||
{/* Filters, pagination, etc. */}
|
||||
{isLoading ? <Skeleton /> : <Table data={orders} />}
|
||||
</div>
|
||||
);
|
||||
}
|
||||
```
|
||||
|
||||
#### 5. Real-Time WebSocket Integration
|
||||
|
||||
```typescript
|
||||
// lib/hooks/useWebSocket.ts
|
||||
import { useEffect } from 'react';
|
||||
import { useDashboardStore } from '@/lib/store';
|
||||
import { useQueryClient } from '@tanstack/react-query';
|
||||
|
||||
export function useWebSocket() {
|
||||
const queryClient = useQueryClient();
|
||||
const addNotification = useDashboardStore(state => state.addNotification);
|
||||
|
||||
useEffect(() => {
|
||||
const ws = new WebSocket(process.env.NEXT_PUBLIC_WS_URL!);
|
||||
|
||||
ws.onmessage = (event) => {
|
||||
const message = JSON.parse(event.data);
|
||||
|
||||
switch (message.type) {
|
||||
case 'ORDER_CREATED':
|
||||
addNotification({
|
||||
id: Date.now().toString(),
|
||||
type: 'info',
|
||||
title: 'New Order',
|
||||
message: `Order #${message.orderId} created`,
|
||||
timestamp: Date.now(),
|
||||
});
|
||||
queryClient.invalidateQueries({ queryKey: ['orders'] });
|
||||
break;
|
||||
|
||||
case 'INVENTORY_LOW':
|
||||
addNotification({
|
||||
id: Date.now().toString(),
|
||||
type: 'warning',
|
||||
title: 'Low Inventory',
|
||||
message: `${message.productName} is running low`,
|
||||
timestamp: Date.now(),
|
||||
});
|
||||
break;
|
||||
}
|
||||
};
|
||||
|
||||
return () => ws.close();
|
||||
}, [addNotification, queryClient]);
|
||||
}
|
||||
|
||||
// Usage in layout
|
||||
// app/(dashboard)/layout.tsx
|
||||
'use client';
|
||||
|
||||
import { useWebSocket } from '@/lib/hooks/useWebSocket';
|
||||
|
||||
export default function DashboardLayout({ children }: { children: React.ReactNode }) {
|
||||
useWebSocket(); // Connect to WebSocket on mount
|
||||
|
||||
return <div>{children}</div>;
|
||||
}
|
||||
```
|
||||
|
||||
#### 6. Optimization Techniques
|
||||
|
||||
**Code Splitting**:
|
||||
```typescript
|
||||
// app/(dashboard)/analytics/page.tsx
|
||||
import dynamic from 'next/dynamic';
|
||||
import { Skeleton } from '@/components/atoms/Skeleton';
|
||||
|
||||
// Lazy load heavy chart library
|
||||
const AnalyticsChart = dynamic(
|
||||
() => import('@/components/organisms/AnalyticsChart'),
|
||||
{
|
||||
loading: () => <Skeleton className="h-96" />,
|
||||
ssr: false, // Don't render on server (chart library is client-only)
|
||||
}
|
||||
);
|
||||
|
||||
export default function AnalyticsPage() {
|
||||
return (
|
||||
<div>
|
||||
<h1>Analytics</h1>
|
||||
<AnalyticsChart />
|
||||
</div>
|
||||
);
|
||||
}
|
||||
```
|
||||
|
||||
**Virtual Scrolling for Large Tables**:
|
||||
```typescript
|
||||
// components/organisms/ProductTable.tsx
|
||||
'use client';
|
||||
|
||||
import { useVirtualizer } from '@tanstack/react-virtual';
|
||||
import { useRef } from 'react';
|
||||
|
||||
export function ProductTable({ products }: { products: Product[] }) {
|
||||
const parentRef = useRef<HTMLDivElement>(null);
|
||||
|
||||
const virtualizer = useVirtualizer({
|
||||
count: products.length,
|
||||
getScrollElement: () => parentRef.current,
|
||||
estimateSize: () => 50, // Row height
|
||||
overscan: 10, // Render 10 extra rows for smooth scrolling
|
||||
});
|
||||
|
||||
return (
|
||||
<div ref={parentRef} className="h-96 overflow-auto">
|
||||
<div style={{ height: `${virtualizer.getTotalSize()}px` }}>
|
||||
{virtualizer.getVirtualItems().map((virtualRow) => (
|
||||
<div
|
||||
key={virtualRow.index}
|
||||
style={{
|
||||
position: 'absolute',
|
||||
top: 0,
|
||||
left: 0,
|
||||
width: '100%',
|
||||
height: `${virtualRow.size}px`,
|
||||
transform: `translateY(${virtualRow.start}px)`,
|
||||
}}
|
||||
>
|
||||
<ProductRow product={products[virtualRow.index]} />
|
||||
</div>
|
||||
))}
|
||||
</div>
|
||||
</div>
|
||||
);
|
||||
}
|
||||
```
|
||||
|
||||
**Image Optimization**:
|
||||
```typescript
|
||||
// components/organisms/ProductCard.tsx
|
||||
import Image from 'next/image';
|
||||
|
||||
export function ProductCard({ product }: { product: Product }) {
|
||||
return (
|
||||
<div>
|
||||
<Image
|
||||
src={product.imageUrl}
|
||||
alt={product.name}
|
||||
width={300}
|
||||
height={300}
|
||||
placeholder="blur"
|
||||
blurDataURL={product.thumbnailUrl}
|
||||
sizes="(max-width: 768px) 100vw, (max-width: 1200px) 50vw, 33vw"
|
||||
/>
|
||||
</div>
|
||||
);
|
||||
}
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## Example 2: SaaS Marketing Website
|
||||
|
||||
### Scenario
|
||||
Building a high-performance marketing website for a SaaS product with SEO optimization and accessibility.
|
||||
|
||||
### Prompt
|
||||
```
|
||||
Design a Next.js marketing website for a B2B SaaS platform with:
|
||||
|
||||
Requirements:
|
||||
- 10+ landing pages (home, features, pricing, about, blog)
|
||||
- SEO optimized (meta tags, structured data, sitemap)
|
||||
- Accessibility WCAG AA compliant
|
||||
- Blog with MDX support
|
||||
- Contact form with Resend integration
|
||||
- Newsletter signup
|
||||
- Dark mode support
|
||||
- i18n support (English, Spanish, German)
|
||||
|
||||
Performance Targets:
|
||||
- Lighthouse score 95+ (all categories)
|
||||
- LCP < 2.5s
|
||||
- CLS < 0.1
|
||||
- 100% accessibility score
|
||||
|
||||
Technical Stack:
|
||||
- Next.js 14 App Router
|
||||
- TypeScript
|
||||
- TailwindCSS
|
||||
- shadcn/ui components
|
||||
- MDX for blog
|
||||
- next-intl for i18n
|
||||
|
||||
Provide component architecture and implementation examples.
|
||||
```
|
||||
|
||||
### Agent Output
|
||||
|
||||
[Detailed architecture with folder structure, SEO setup, i18n configuration, MDX integration, and accessibility patterns]
|
||||
|
||||
---
|
||||
|
||||
## Example 3: Real-Time Chat Application
|
||||
|
||||
### Scenario
|
||||
Building a real-time chat application with WebSocket, typing indicators, and message history.
|
||||
|
||||
[Full example with WebSocket setup, optimistic updates, and offline support]
|
||||
|
||||
---
|
||||
|
||||
## Example 4: Design System Migration
|
||||
|
||||
### Scenario
|
||||
Migrating from Material-UI to a custom design system based on shadcn/ui.
|
||||
|
||||
[Step-by-step migration plan with component mapping and codemods]
|
||||
|
||||
---
|
||||
|
||||
## Example 5: Performance Optimization
|
||||
|
||||
### Scenario
|
||||
Optimizing a slow Next.js application (LCP 8s → 2s target).
|
||||
|
||||
[Performance audit, bottleneck analysis, optimization implementation]
|
||||
|
||||
---
|
||||
|
||||
## Example 6: Micro-Frontend Setup
|
||||
|
||||
### Scenario
|
||||
Setting up a micro-frontend architecture with Module Federation for a large enterprise application.
|
||||
|
||||
[Webpack 5 Module Federation setup, shared dependencies, independent deployments]
|
||||
|
||||
---
|
||||
|
||||
## Tips for Effective Prompts
|
||||
|
||||
1. **Be Specific**: Include framework versions, tech stack, and constraints
|
||||
2. **Define Metrics**: Specify performance targets (LCP, bundle size, etc.)
|
||||
3. **Provide Context**: Team size, timeline, existing infrastructure
|
||||
4. **State Goals**: SEO, accessibility, mobile-first, etc.
|
||||
5. **Include Examples**: Reference similar applications or patterns
|
||||
|
||||
## Common Patterns
|
||||
|
||||
### Pattern 1: Server + Client Component Split
|
||||
|
||||
```typescript
|
||||
// Server Component (default in App Router)
|
||||
export default async function Page() {
|
||||
const data = await fetchData(); // Server-side fetch
|
||||
return <ClientComponent initialData={data} />;
|
||||
}
|
||||
|
||||
// Client Component (interactive)
|
||||
'use client';
|
||||
export function ClientComponent({ initialData }) {
|
||||
const [state, setState] = useState(initialData);
|
||||
// Interactive logic here
|
||||
}
|
||||
```
|
||||
|
||||
### Pattern 2: Optimistic Updates
|
||||
|
||||
```typescript
|
||||
const mutation = useMutation({
|
||||
mutationFn: updateTodo,
|
||||
onMutate: async (newTodo) => {
|
||||
await queryClient.cancelQueries({ queryKey: ['todos'] });
|
||||
const previousTodos = queryClient.getQueryData(['todos']);
|
||||
|
||||
// Optimistically update UI
|
||||
queryClient.setQueryData(['todos'], (old) => [...old, newTodo]);
|
||||
|
||||
return { previousTodos };
|
||||
},
|
||||
onError: (err, newTodo, context) => {
|
||||
// Rollback on error
|
||||
queryClient.setQueryData(['todos'], context.previousTodos);
|
||||
},
|
||||
});
|
||||
```
|
||||
|
||||
### Pattern 3: Parallel Data Fetching
|
||||
|
||||
```typescript
|
||||
// Fetch multiple resources in parallel (Server Component)
|
||||
export default async function Page() {
|
||||
const [user, posts, comments] = await Promise.all([
|
||||
fetchUser(),
|
||||
fetchPosts(),
|
||||
fetchComments(),
|
||||
]);
|
||||
|
||||
return <Dashboard user={user} posts={posts} comments={comments} />;
|
||||
}
|
||||
```
|
||||
|
||||
## Additional Resources
|
||||
|
||||
- **Next.js Examples**: https://github.com/vercel/next.js/tree/canary/examples
|
||||
- **React Patterns**: https://patterns.dev
|
||||
- **TailwindCSS Components**: https://tailwindui.com
|
||||
- **shadcn/ui**: https://ui.shadcn.com
|
||||
- **Radix UI**: https://radix-ui.com
|
||||
152
agents/frontend-architect/templates/component-template.tsx
Normal file
152
agents/frontend-architect/templates/component-template.tsx
Normal file
@@ -0,0 +1,152 @@
|
||||
/**
|
||||
* React Component Template
|
||||
*
|
||||
* This template provides a starting point for creating well-structured,
|
||||
* type-safe React components following best practices.
|
||||
*
|
||||
* Usage:
|
||||
* 1. Copy this template to your components directory
|
||||
* 2. Rename file and component
|
||||
* 3. Define props interface
|
||||
* 4. Implement component logic
|
||||
* 5. Add tests and Storybook stories
|
||||
*/
|
||||
|
||||
import React from 'react';
|
||||
import { cn } from '@/lib/utils'; // Utility for className merging (clsx + tailwind-merge)
|
||||
|
||||
// ============================================================================
|
||||
// TYPES
|
||||
// ============================================================================
|
||||
|
||||
/**
|
||||
* Props for the ComponentName component
|
||||
*
|
||||
* @property prop1 - Description of prop1
|
||||
* @property prop2 - Description of prop2 (optional)
|
||||
* @property className - Additional CSS classes (optional)
|
||||
* @property children - React children (optional)
|
||||
*/
|
||||
export interface ComponentNameProps {
|
||||
/** Required prop with specific type */
|
||||
prop1: string;
|
||||
|
||||
/** Optional prop with default value */
|
||||
prop2?: number;
|
||||
|
||||
/** Callback function */
|
||||
onAction?: (value: string) => void;
|
||||
|
||||
/** Additional CSS classes for customization */
|
||||
className?: string;
|
||||
|
||||
/** React children */
|
||||
children?: React.ReactNode;
|
||||
}
|
||||
|
||||
// ============================================================================
|
||||
// CONSTANTS
|
||||
// ============================================================================
|
||||
|
||||
const DEFAULT_PROP2 = 42;
|
||||
|
||||
// ============================================================================
|
||||
// COMPONENT
|
||||
// ============================================================================
|
||||
|
||||
/**
|
||||
* ComponentName - Brief description of what this component does
|
||||
*
|
||||
* More detailed description of the component's purpose, use cases,
|
||||
* and any important implementation notes.
|
||||
*
|
||||
* @example
|
||||
* ```tsx
|
||||
* <ComponentName
|
||||
* prop1="value"
|
||||
* prop2={100}
|
||||
* onAction={(value) => console.log(value)}
|
||||
* >
|
||||
* Content
|
||||
* </ComponentName>
|
||||
* ```
|
||||
*/
|
||||
export const ComponentName = React.forwardRef<
|
||||
HTMLDivElement,
|
||||
ComponentNameProps
|
||||
>(
|
||||
(
|
||||
{
|
||||
prop1,
|
||||
prop2 = DEFAULT_PROP2,
|
||||
onAction,
|
||||
className,
|
||||
children,
|
||||
...restProps
|
||||
},
|
||||
ref
|
||||
) => {
|
||||
// ========================================================================
|
||||
// STATE
|
||||
// ========================================================================
|
||||
|
||||
const [internalState, setInternalState] = React.useState<string>('');
|
||||
|
||||
// ========================================================================
|
||||
// EFFECTS
|
||||
// ========================================================================
|
||||
|
||||
React.useEffect(() => {
|
||||
// Side effects here
|
||||
}, [prop1]);
|
||||
|
||||
// ========================================================================
|
||||
// HANDLERS
|
||||
// ========================================================================
|
||||
|
||||
const handleClick = React.useCallback(() => {
|
||||
if (onAction) {
|
||||
onAction(internalState);
|
||||
}
|
||||
}, [internalState, onAction]);
|
||||
|
||||
// ========================================================================
|
||||
// RENDER
|
||||
// ========================================================================
|
||||
|
||||
return (
|
||||
<div
|
||||
ref={ref}
|
||||
className={cn(
|
||||
// Base styles
|
||||
'rounded-lg border bg-white p-4 shadow-sm',
|
||||
// Conditional styles
|
||||
prop2 > 50 && 'border-blue-500',
|
||||
// Custom className
|
||||
className
|
||||
)}
|
||||
{...restProps}
|
||||
>
|
||||
<h2 className="text-lg font-semibold">{prop1}</h2>
|
||||
<p className="text-sm text-gray-600">Value: {prop2}</p>
|
||||
|
||||
{children && <div className="mt-4">{children}</div>}
|
||||
|
||||
<button
|
||||
onClick={handleClick}
|
||||
className="mt-4 rounded bg-blue-500 px-4 py-2 text-white hover:bg-blue-600"
|
||||
>
|
||||
Click Me
|
||||
</button>
|
||||
</div>
|
||||
);
|
||||
}
|
||||
);
|
||||
|
||||
ComponentName.displayName = 'ComponentName';
|
||||
|
||||
// ============================================================================
|
||||
// EXPORTS
|
||||
// ============================================================================
|
||||
|
||||
export default ComponentName;
|
||||
311
agents/frontend-architect/templates/hook-template.ts
Normal file
311
agents/frontend-architect/templates/hook-template.ts
Normal file
@@ -0,0 +1,311 @@
|
||||
/**
|
||||
* Custom React Hook Template
|
||||
*
|
||||
* This template provides a starting point for creating reusable
|
||||
* custom hooks following React best practices.
|
||||
*
|
||||
* Usage:
|
||||
* 1. Copy this template to your hooks directory
|
||||
* 2. Rename file and hook
|
||||
* 3. Define input parameters and return type
|
||||
* 4. Implement hook logic
|
||||
* 5. Add tests and documentation
|
||||
*/
|
||||
|
||||
import { useState, useEffect, useCallback, useRef } from 'react';
|
||||
|
||||
// ============================================================================
|
||||
// TYPES
|
||||
// ============================================================================
|
||||
|
||||
/**
|
||||
* Options for the useCustomHook
|
||||
*/
|
||||
export interface UseCustomHookOptions {
|
||||
/** Enable/disable the hook */
|
||||
enabled?: boolean;
|
||||
|
||||
/** Callback when data is loaded */
|
||||
onSuccess?: (data: string) => void;
|
||||
|
||||
/** Callback when error occurs */
|
||||
onError?: (error: Error) => void;
|
||||
|
||||
/** Retry count */
|
||||
retryCount?: number;
|
||||
}
|
||||
|
||||
/**
|
||||
* Return type of useCustomHook
|
||||
*/
|
||||
export interface UseCustomHookResult {
|
||||
/** Current data */
|
||||
data: string | null;
|
||||
|
||||
/** Loading state */
|
||||
isLoading: boolean;
|
||||
|
||||
/** Error state */
|
||||
error: Error | null;
|
||||
|
||||
/** Refetch function */
|
||||
refetch: () => void;
|
||||
|
||||
/** Reset function */
|
||||
reset: () => void;
|
||||
}
|
||||
|
||||
// ============================================================================
|
||||
// CONSTANTS
|
||||
// ============================================================================
|
||||
|
||||
const DEFAULT_OPTIONS: Required<UseCustomHookOptions> = {
|
||||
enabled: true,
|
||||
onSuccess: () => {},
|
||||
onError: () => {},
|
||||
retryCount: 3,
|
||||
};
|
||||
|
||||
// ============================================================================
|
||||
// HOOK
|
||||
// ============================================================================
|
||||
|
||||
/**
|
||||
* useCustomHook - Brief description of what this hook does
|
||||
*
|
||||
* More detailed description of the hook's purpose, use cases,
|
||||
* and any important implementation notes.
|
||||
*
|
||||
* @param param1 - Description of param1
|
||||
* @param options - Configuration options
|
||||
* @returns Hook result with data, loading, error states and utility functions
|
||||
*
|
||||
* @example
|
||||
* ```tsx
|
||||
* function MyComponent() {
|
||||
* const { data, isLoading, error, refetch } = useCustomHook('value', {
|
||||
* enabled: true,
|
||||
* onSuccess: (data) => console.log('Success:', data),
|
||||
* });
|
||||
*
|
||||
* if (isLoading) return <Spinner />;
|
||||
* if (error) return <Error message={error.message} />;
|
||||
*
|
||||
* return <div>{data}</div>;
|
||||
* }
|
||||
* ```
|
||||
*/
|
||||
export function useCustomHook(
|
||||
param1: string,
|
||||
options: UseCustomHookOptions = {}
|
||||
): UseCustomHookResult {
|
||||
// ========================================================================
|
||||
// OPTIONS
|
||||
// ========================================================================
|
||||
|
||||
const {
|
||||
enabled = DEFAULT_OPTIONS.enabled,
|
||||
onSuccess = DEFAULT_OPTIONS.onSuccess,
|
||||
onError = DEFAULT_OPTIONS.onError,
|
||||
retryCount = DEFAULT_OPTIONS.retryCount,
|
||||
} = options;
|
||||
|
||||
// ========================================================================
|
||||
// STATE
|
||||
// ========================================================================
|
||||
|
||||
const [data, setData] = useState<string | null>(null);
|
||||
const [isLoading, setIsLoading] = useState<boolean>(false);
|
||||
const [error, setError] = useState<Error | null>(null);
|
||||
|
||||
// ========================================================================
|
||||
// REFS
|
||||
// ========================================================================
|
||||
|
||||
// Use refs for values that shouldn't trigger re-renders
|
||||
const retryCountRef = useRef(0);
|
||||
const mountedRef = useRef(true);
|
||||
|
||||
// ========================================================================
|
||||
// CLEANUP
|
||||
// ========================================================================
|
||||
|
||||
useEffect(() => {
|
||||
mountedRef.current = true;
|
||||
|
||||
return () => {
|
||||
mountedRef.current = false;
|
||||
};
|
||||
}, []);
|
||||
|
||||
// ========================================================================
|
||||
// FETCH LOGIC
|
||||
// ========================================================================
|
||||
|
||||
const fetchData = useCallback(async () => {
|
||||
if (!enabled) return;
|
||||
|
||||
setIsLoading(true);
|
||||
setError(null);
|
||||
|
||||
try {
|
||||
// Simulate async operation
|
||||
const result = await new Promise<string>((resolve, reject) => {
|
||||
setTimeout(() => {
|
||||
if (Math.random() > 0.8) {
|
||||
reject(new Error('Random error'));
|
||||
} else {
|
||||
resolve(`Data for ${param1}`);
|
||||
}
|
||||
}, 1000);
|
||||
});
|
||||
|
||||
// Only update state if component is still mounted
|
||||
if (mountedRef.current) {
|
||||
setData(result);
|
||||
setIsLoading(false);
|
||||
onSuccess(result);
|
||||
retryCountRef.current = 0; // Reset retry count on success
|
||||
}
|
||||
} catch (err) {
|
||||
if (mountedRef.current) {
|
||||
const error = err instanceof Error ? err : new Error('Unknown error');
|
||||
|
||||
// Retry logic
|
||||
if (retryCountRef.current < retryCount) {
|
||||
retryCountRef.current++;
|
||||
setTimeout(() => fetchData(), 1000 * retryCountRef.current); // Exponential backoff
|
||||
} else {
|
||||
setError(error);
|
||||
setIsLoading(false);
|
||||
onError(error);
|
||||
}
|
||||
}
|
||||
}
|
||||
}, [enabled, param1, onSuccess, onError, retryCount]);
|
||||
|
||||
// ========================================================================
|
||||
// EFFECTS
|
||||
// ========================================================================
|
||||
|
||||
useEffect(() => {
|
||||
if (enabled) {
|
||||
fetchData();
|
||||
}
|
||||
|
||||
// Cleanup function
|
||||
return () => {
|
||||
// Cancel any pending operations
|
||||
};
|
||||
}, [enabled, fetchData]);
|
||||
|
||||
// ========================================================================
|
||||
// HANDLERS
|
||||
// ========================================================================
|
||||
|
||||
const refetch = useCallback(() => {
|
||||
retryCountRef.current = 0; // Reset retry count
|
||||
fetchData();
|
||||
}, [fetchData]);
|
||||
|
||||
const reset = useCallback(() => {
|
||||
setData(null);
|
||||
setError(null);
|
||||
setIsLoading(false);
|
||||
retryCountRef.current = 0;
|
||||
}, []);
|
||||
|
||||
// ========================================================================
|
||||
// RETURN
|
||||
// ========================================================================
|
||||
|
||||
return {
|
||||
data,
|
||||
isLoading,
|
||||
error,
|
||||
refetch,
|
||||
reset,
|
||||
};
|
||||
}
|
||||
|
||||
// ============================================================================
|
||||
// HELPER HOOKS (Optional)
|
||||
// ============================================================================
|
||||
|
||||
/**
|
||||
* useDebounce - Debounce a value
|
||||
*
|
||||
* Useful for search inputs, window resize handlers, etc.
|
||||
*
|
||||
* @example
|
||||
* ```tsx
|
||||
* const [searchTerm, setSearchTerm] = useState('');
|
||||
* const debouncedSearchTerm = useDebounce(searchTerm, 500);
|
||||
*
|
||||
* useEffect(() => {
|
||||
* // API call with debounced value
|
||||
* searchAPI(debouncedSearchTerm);
|
||||
* }, [debouncedSearchTerm]);
|
||||
* ```
|
||||
*/
|
||||
export function useDebounce<T>(value: T, delay: number): T {
|
||||
const [debouncedValue, setDebouncedValue] = useState<T>(value);
|
||||
|
||||
useEffect(() => {
|
||||
const handler = setTimeout(() => {
|
||||
setDebouncedValue(value);
|
||||
}, delay);
|
||||
|
||||
return () => {
|
||||
clearTimeout(handler);
|
||||
};
|
||||
}, [value, delay]);
|
||||
|
||||
return debouncedValue;
|
||||
}
|
||||
|
||||
/**
|
||||
* useLocalStorage - Sync state with localStorage
|
||||
*
|
||||
* @example
|
||||
* ```tsx
|
||||
* const [theme, setTheme] = useLocalStorage('theme', 'light');
|
||||
* ```
|
||||
*/
|
||||
export function useLocalStorage<T>(
|
||||
key: string,
|
||||
initialValue: T
|
||||
): [T, (value: T | ((val: T) => T)) => void] {
|
||||
const [storedValue, setStoredValue] = useState<T>(() => {
|
||||
try {
|
||||
const item = window.localStorage.getItem(key);
|
||||
return item ? JSON.parse(item) : initialValue;
|
||||
} catch (error) {
|
||||
console.error(`Error reading localStorage key "${key}":`, error);
|
||||
return initialValue;
|
||||
}
|
||||
});
|
||||
|
||||
const setValue = useCallback(
|
||||
(value: T | ((val: T) => T)) => {
|
||||
try {
|
||||
const valueToStore =
|
||||
value instanceof Function ? value(storedValue) : value;
|
||||
|
||||
setStoredValue(valueToStore);
|
||||
window.localStorage.setItem(key, JSON.stringify(valueToStore));
|
||||
} catch (error) {
|
||||
console.error(`Error setting localStorage key "${key}":`, error);
|
||||
}
|
||||
},
|
||||
[key, storedValue]
|
||||
);
|
||||
|
||||
return [storedValue, setValue];
|
||||
}
|
||||
|
||||
// ============================================================================
|
||||
// EXPORTS
|
||||
// ============================================================================
|
||||
|
||||
export default useCustomHook;
|
||||
228
agents/frontend-architect/templates/page-template.tsx
Normal file
228
agents/frontend-architect/templates/page-template.tsx
Normal file
@@ -0,0 +1,228 @@
|
||||
/**
|
||||
* Next.js App Router Page Template
|
||||
*
|
||||
* This template demonstrates best practices for creating pages
|
||||
* in Next.js 14+ App Router with Server Components.
|
||||
*
|
||||
* Key Features:
|
||||
* - Server Component by default (no 'use client' needed)
|
||||
* - SEO metadata generation
|
||||
* - Suspense boundaries for streaming
|
||||
* - Error handling
|
||||
* - TypeScript types
|
||||
*/
|
||||
|
||||
import { Metadata } from 'next';
|
||||
import { Suspense } from 'react';
|
||||
import { notFound } from 'next/navigation';
|
||||
|
||||
// Components
|
||||
import { PageHeader } from '@/components/organisms/PageHeader';
|
||||
import { DataTable } from '@/components/organisms/DataTable';
|
||||
import { Skeleton } from '@/components/atoms/Skeleton';
|
||||
|
||||
// ============================================================================
|
||||
// TYPES
|
||||
// ============================================================================
|
||||
|
||||
interface PageProps {
|
||||
params: {
|
||||
id: string;
|
||||
};
|
||||
searchParams: {
|
||||
page?: string;
|
||||
sort?: string;
|
||||
};
|
||||
}
|
||||
|
||||
// ============================================================================
|
||||
// METADATA (SEO)
|
||||
// ============================================================================
|
||||
|
||||
/**
|
||||
* Generate static metadata for SEO
|
||||
*
|
||||
* This function runs on the server and generates metadata
|
||||
* for search engines and social media.
|
||||
*/
|
||||
export async function generateMetadata({
|
||||
params,
|
||||
}: PageProps): Promise<Metadata> {
|
||||
// Fetch data needed for metadata
|
||||
const data = await fetchData(params.id);
|
||||
|
||||
if (!data) {
|
||||
return {
|
||||
title: 'Not Found',
|
||||
};
|
||||
}
|
||||
|
||||
return {
|
||||
title: `${data.title} | Your App Name`,
|
||||
description: data.description,
|
||||
openGraph: {
|
||||
title: data.title,
|
||||
description: data.description,
|
||||
images: [data.imageUrl],
|
||||
},
|
||||
twitter: {
|
||||
card: 'summary_large_image',
|
||||
title: data.title,
|
||||
description: data.description,
|
||||
images: [data.imageUrl],
|
||||
},
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* Optional: Generate static paths for Static Site Generation (SSG)
|
||||
*
|
||||
* Uncomment this function if you want to pre-render pages at build time.
|
||||
*/
|
||||
// export async function generateStaticParams() {
|
||||
// const items = await fetchAllItems();
|
||||
//
|
||||
// return items.map((item) => ({
|
||||
// id: item.id,
|
||||
// }));
|
||||
// }
|
||||
|
||||
// ============================================================================
|
||||
// DATA FETCHING
|
||||
// ============================================================================
|
||||
|
||||
/**
|
||||
* Fetch data on the server
|
||||
*
|
||||
* This runs on the server, so you can safely access databases,
|
||||
* private APIs, etc.
|
||||
*/
|
||||
async function fetchData(id: string) {
|
||||
const response = await fetch(`https://api.example.com/items/${id}`, {
|
||||
next: {
|
||||
revalidate: 3600, // ISR: Revalidate every hour
|
||||
// OR use 'force-cache' for static generation
|
||||
// OR use 'no-store' for dynamic rendering
|
||||
},
|
||||
});
|
||||
|
||||
if (!response.ok) {
|
||||
return null;
|
||||
}
|
||||
|
||||
return response.json();
|
||||
}
|
||||
|
||||
async function fetchRelatedData(filters: { page: number; sort: string }) {
|
||||
const response = await fetch(
|
||||
`https://api.example.com/related?page=${filters.page}&sort=${filters.sort}`,
|
||||
{
|
||||
next: { revalidate: 60 }, // Revalidate every minute
|
||||
}
|
||||
);
|
||||
|
||||
return response.json();
|
||||
}
|
||||
|
||||
// ============================================================================
|
||||
// PAGE COMPONENT
|
||||
// ============================================================================
|
||||
|
||||
/**
|
||||
* Page Component (Server Component by default)
|
||||
*
|
||||
* Server Components:
|
||||
* - Run on the server only
|
||||
* - Can access backend resources directly
|
||||
* - Don't add JavaScript to the client bundle
|
||||
* - Can't use hooks like useState, useEffect
|
||||
* - Can't add event handlers
|
||||
*/
|
||||
export default async function Page({ params, searchParams }: PageProps) {
|
||||
// ========================================================================
|
||||
// DATA FETCHING (Server-side)
|
||||
// ========================================================================
|
||||
|
||||
// Parse search params
|
||||
const page = searchParams.page ? parseInt(searchParams.page) : 1;
|
||||
const sort = searchParams.sort || 'desc';
|
||||
|
||||
// Fetch data in parallel for performance
|
||||
const [mainData, relatedData] = await Promise.all([
|
||||
fetchData(params.id),
|
||||
fetchRelatedData({ page, sort }),
|
||||
]);
|
||||
|
||||
// Handle not found
|
||||
if (!mainData) {
|
||||
notFound(); // Renders app/not-found.tsx
|
||||
}
|
||||
|
||||
// ========================================================================
|
||||
// RENDER
|
||||
// ========================================================================
|
||||
|
||||
return (
|
||||
<div className="container mx-auto px-4 py-8">
|
||||
{/* Page Header */}
|
||||
<PageHeader
|
||||
title={mainData.title}
|
||||
description={mainData.description}
|
||||
breadcrumbs={[
|
||||
{ label: 'Home', href: '/' },
|
||||
{ label: 'Items', href: '/items' },
|
||||
{ label: mainData.title, href: `/items/${params.id}` },
|
||||
]}
|
||||
/>
|
||||
|
||||
{/* Main Content */}
|
||||
<section className="mt-8">
|
||||
<h2 className="text-2xl font-bold">Details</h2>
|
||||
<div className="mt-4 grid grid-cols-1 gap-6 md:grid-cols-2">
|
||||
<div>
|
||||
<p className="text-gray-600">ID: {mainData.id}</p>
|
||||
<p className="text-gray-600">Created: {mainData.createdAt}</p>
|
||||
</div>
|
||||
</div>
|
||||
</section>
|
||||
|
||||
{/* Related Data with Suspense */}
|
||||
<section className="mt-12">
|
||||
<h2 className="text-2xl font-bold">Related Items</h2>
|
||||
<Suspense fallback={<Skeleton className="mt-4 h-96" />}>
|
||||
<DataTable
|
||||
data={relatedData.items}
|
||||
columns={['id', 'name', 'status']}
|
||||
pagination={{
|
||||
currentPage: page,
|
||||
totalPages: relatedData.totalPages,
|
||||
}}
|
||||
/>
|
||||
</Suspense>
|
||||
</section>
|
||||
</div>
|
||||
);
|
||||
}
|
||||
|
||||
// ============================================================================
|
||||
// CLIENT COMPONENT EXAMPLE (if needed)
|
||||
// ============================================================================
|
||||
|
||||
/**
|
||||
* If you need interactivity, create a separate Client Component:
|
||||
*
|
||||
* 'use client';
|
||||
*
|
||||
* export function InteractiveSection({ initialData }) {
|
||||
* const [state, setState] = useState(initialData);
|
||||
*
|
||||
* return (
|
||||
* <div>
|
||||
* <button onClick={() => setState(...)}>Click me</button>
|
||||
* </div>
|
||||
* );
|
||||
* }
|
||||
*
|
||||
* Then use it in the Server Component:
|
||||
* <InteractiveSection initialData={mainData} />
|
||||
*/
|
||||
510
commands/component-generate.md
Normal file
510
commands/component-generate.md
Normal file
@@ -0,0 +1,510 @@
|
||||
# /specweave-frontend:component-generate
|
||||
|
||||
Generate React/Vue/Angular components with tests, stories, and documentation following Atomic Design principles.
|
||||
|
||||
You are an expert frontend developer who creates well-structured, tested, and documented components.
|
||||
|
||||
## Your Task
|
||||
|
||||
Generate production-ready components with complete test coverage, Storybook stories, and documentation.
|
||||
|
||||
### 1. Component Types
|
||||
|
||||
**Atomic Design Levels**:
|
||||
- **Atoms**: Basic UI elements (Button, Input, Icon, Text, Badge)
|
||||
- **Molecules**: Simple component combinations (FormField, SearchBar, Card)
|
||||
- **Organisms**: Complex components (Header, Form, DataTable, Modal)
|
||||
- **Templates**: Page layouts (DashboardLayout, AuthLayout)
|
||||
|
||||
### 2. React Component Template
|
||||
|
||||
**TypeScript with Props Interface**:
|
||||
```typescript
|
||||
import React from 'react';
|
||||
import { cn } from '@/lib/utils';
|
||||
|
||||
export interface CardProps {
|
||||
/**
|
||||
* Card title
|
||||
*/
|
||||
title?: string;
|
||||
/**
|
||||
* Card content
|
||||
*/
|
||||
children: React.ReactNode;
|
||||
/**
|
||||
* Card variant style
|
||||
*/
|
||||
variant?: 'default' | 'outlined' | 'elevated';
|
||||
/**
|
||||
* Optional footer content
|
||||
*/
|
||||
footer?: React.ReactNode;
|
||||
/**
|
||||
* Additional CSS classes
|
||||
*/
|
||||
className?: string;
|
||||
/**
|
||||
* Click handler
|
||||
*/
|
||||
onClick?: () => void;
|
||||
}
|
||||
|
||||
export const Card = React.forwardRef<HTMLDivElement, CardProps>(
|
||||
({ title, children, variant = 'default', footer, className, onClick }, ref) => {
|
||||
const baseStyles = 'rounded-lg p-6 transition-all';
|
||||
|
||||
const variants = {
|
||||
default: 'bg-white border border-gray-200',
|
||||
outlined: 'bg-transparent border-2 border-gray-300',
|
||||
elevated: 'bg-white shadow-lg hover:shadow-xl',
|
||||
};
|
||||
|
||||
return (
|
||||
<div
|
||||
ref={ref}
|
||||
className={cn(
|
||||
baseStyles,
|
||||
variants[variant],
|
||||
onClick && 'cursor-pointer hover:border-blue-500',
|
||||
className
|
||||
)}
|
||||
onClick={onClick}
|
||||
>
|
||||
{title && (
|
||||
<h3 className="text-lg font-semibold mb-4 text-gray-900">{title}</h3>
|
||||
)}
|
||||
<div className="text-gray-700">{children}</div>
|
||||
{footer && (
|
||||
<div className="mt-4 pt-4 border-t border-gray-200">{footer}</div>
|
||||
)}
|
||||
</div>
|
||||
);
|
||||
}
|
||||
);
|
||||
|
||||
Card.displayName = 'Card';
|
||||
```
|
||||
|
||||
### 3. Component Test Template
|
||||
|
||||
**Comprehensive Testing**:
|
||||
```typescript
|
||||
import { render, screen, fireEvent } from '@testing-library/react';
|
||||
import { Card } from './Card';
|
||||
|
||||
describe('Card', () => {
|
||||
describe('Rendering', () => {
|
||||
it('renders children correctly', () => {
|
||||
render(<Card>Test content</Card>);
|
||||
expect(screen.getByText('Test content')).toBeInTheDocument();
|
||||
});
|
||||
|
||||
it('renders title when provided', () => {
|
||||
render(<Card title="Test Title">Content</Card>);
|
||||
expect(screen.getByText('Test Title')).toBeInTheDocument();
|
||||
});
|
||||
|
||||
it('renders footer when provided', () => {
|
||||
render(
|
||||
<Card footer={<button>Action</button>}>
|
||||
Content
|
||||
</Card>
|
||||
);
|
||||
expect(screen.getByText('Action')).toBeInTheDocument();
|
||||
});
|
||||
});
|
||||
|
||||
describe('Variants', () => {
|
||||
it('applies default variant styles', () => {
|
||||
const { container } = render(<Card>Content</Card>);
|
||||
expect(container.firstChild).toHaveClass('bg-white', 'border-gray-200');
|
||||
});
|
||||
|
||||
it('applies outlined variant styles', () => {
|
||||
const { container } = render(<Card variant="outlined">Content</Card>);
|
||||
expect(container.firstChild).toHaveClass('border-2');
|
||||
});
|
||||
|
||||
it('applies elevated variant styles', () => {
|
||||
const { container } = render(<Card variant="elevated">Content</Card>);
|
||||
expect(container.firstChild).toHaveClass('shadow-lg');
|
||||
});
|
||||
});
|
||||
|
||||
describe('Interactions', () => {
|
||||
it('handles click events', () => {
|
||||
const onClick = vi.fn();
|
||||
render(<Card onClick={onClick}>Content</Card>);
|
||||
fireEvent.click(screen.getByText('Content'));
|
||||
expect(onClick).toHaveBeenCalledTimes(1);
|
||||
});
|
||||
|
||||
it('applies hover styles when clickable', () => {
|
||||
const { container } = render(<Card onClick={() => {}}>Content</Card>);
|
||||
expect(container.firstChild).toHaveClass('cursor-pointer');
|
||||
});
|
||||
});
|
||||
|
||||
describe('Accessibility', () => {
|
||||
it('forwards ref correctly', () => {
|
||||
const ref = React.createRef<HTMLDivElement>();
|
||||
render(<Card ref={ref}>Content</Card>);
|
||||
expect(ref.current).toBeInstanceOf(HTMLDivElement);
|
||||
});
|
||||
});
|
||||
});
|
||||
```
|
||||
|
||||
### 4. Storybook Stories Template
|
||||
|
||||
**Interactive Documentation**:
|
||||
```typescript
|
||||
import type { Meta, StoryObj } from '@storybook/react';
|
||||
import { Card } from './Card';
|
||||
|
||||
const meta: Meta<typeof Card> = {
|
||||
title: 'Molecules/Card',
|
||||
component: Card,
|
||||
tags: ['autodocs'],
|
||||
argTypes: {
|
||||
variant: {
|
||||
control: 'select',
|
||||
options: ['default', 'outlined', 'elevated'],
|
||||
description: 'Visual variant of the card',
|
||||
},
|
||||
onClick: {
|
||||
action: 'clicked',
|
||||
},
|
||||
},
|
||||
decorators: [
|
||||
(Story) => (
|
||||
<div className="p-8 bg-gray-50">
|
||||
<Story />
|
||||
</div>
|
||||
),
|
||||
],
|
||||
};
|
||||
|
||||
export default meta;
|
||||
type Story = StoryObj<typeof Card>;
|
||||
|
||||
export const Default: Story = {
|
||||
args: {
|
||||
children: 'This is a default card with some content.',
|
||||
},
|
||||
};
|
||||
|
||||
export const WithTitle: Story = {
|
||||
args: {
|
||||
title: 'Card Title',
|
||||
children: 'Card content goes here with a title above.',
|
||||
},
|
||||
};
|
||||
|
||||
export const WithFooter: Story = {
|
||||
args: {
|
||||
title: 'Card with Footer',
|
||||
children: 'Main content area',
|
||||
footer: <button className="text-blue-600 hover:underline">Learn more</button>,
|
||||
},
|
||||
};
|
||||
|
||||
export const Outlined: Story = {
|
||||
args: {
|
||||
variant: 'outlined',
|
||||
title: 'Outlined Card',
|
||||
children: 'This card has an outlined style.',
|
||||
},
|
||||
};
|
||||
|
||||
export const Elevated: Story = {
|
||||
args: {
|
||||
variant: 'elevated',
|
||||
title: 'Elevated Card',
|
||||
children: 'This card has a shadow elevation effect.',
|
||||
},
|
||||
};
|
||||
|
||||
export const Clickable: Story = {
|
||||
args: {
|
||||
title: 'Clickable Card',
|
||||
children: 'Click me to trigger an action!',
|
||||
onClick: () => alert('Card clicked!'),
|
||||
},
|
||||
};
|
||||
|
||||
export const Complex: Story = {
|
||||
args: {
|
||||
title: 'User Profile',
|
||||
variant: 'elevated',
|
||||
children: (
|
||||
<div className="space-y-2">
|
||||
<p className="text-sm text-gray-600">John Doe</p>
|
||||
<p className="text-xs text-gray-500">john.doe@example.com</p>
|
||||
<div className="flex gap-2 mt-4">
|
||||
<span className="px-2 py-1 bg-blue-100 text-blue-800 rounded text-xs">Admin</span>
|
||||
<span className="px-2 py-1 bg-green-100 text-green-800 rounded text-xs">Active</span>
|
||||
</div>
|
||||
</div>
|
||||
),
|
||||
footer: (
|
||||
<button className="w-full py-2 bg-blue-600 text-white rounded hover:bg-blue-700">
|
||||
View Profile
|
||||
</button>
|
||||
),
|
||||
},
|
||||
};
|
||||
```
|
||||
|
||||
### 5. Vue 3 Component Template (Composition API)
|
||||
|
||||
```vue
|
||||
<script setup lang="ts">
|
||||
import { computed } from 'vue';
|
||||
|
||||
export interface CardProps {
|
||||
title?: string;
|
||||
variant?: 'default' | 'outlined' | 'elevated';
|
||||
footer?: boolean;
|
||||
}
|
||||
|
||||
const props = withDefaults(defineProps<CardProps>(), {
|
||||
variant: 'default',
|
||||
footer: false,
|
||||
});
|
||||
|
||||
const emit = defineEmits<{
|
||||
click: [];
|
||||
}>();
|
||||
|
||||
const cardClasses = computed(() => {
|
||||
const base = 'rounded-lg p-6 transition-all';
|
||||
const variants = {
|
||||
default: 'bg-white border border-gray-200',
|
||||
outlined: 'bg-transparent border-2 border-gray-300',
|
||||
elevated: 'bg-white shadow-lg hover:shadow-xl',
|
||||
};
|
||||
return `${base} ${variants[props.variant]}`;
|
||||
});
|
||||
|
||||
const handleClick = () => {
|
||||
emit('click');
|
||||
};
|
||||
</script>
|
||||
|
||||
<template>
|
||||
<div :class="cardClasses" @click="handleClick">
|
||||
<h3 v-if="title" class="text-lg font-semibold mb-4 text-gray-900">
|
||||
{{ title }}
|
||||
</h3>
|
||||
<div class="text-gray-700">
|
||||
<slot />
|
||||
</div>
|
||||
<div v-if="footer || $slots.footer" class="mt-4 pt-4 border-t border-gray-200">
|
||||
<slot name="footer" />
|
||||
</div>
|
||||
</div>
|
||||
</template>
|
||||
```
|
||||
|
||||
### 6. Angular Component Template
|
||||
|
||||
**TypeScript**:
|
||||
```typescript
|
||||
import { Component, Input, Output, EventEmitter } from '@angular/core';
|
||||
import { CommonModule } from '@angular/common';
|
||||
|
||||
export type CardVariant = 'default' | 'outlined' | 'elevated';
|
||||
|
||||
@Component({
|
||||
selector: 'app-card',
|
||||
standalone: true,
|
||||
imports: [CommonModule],
|
||||
templateUrl: './card.component.html',
|
||||
styleUrls: ['./card.component.css'],
|
||||
})
|
||||
export class CardComponent {
|
||||
@Input() title?: string;
|
||||
@Input() variant: CardVariant = 'default';
|
||||
@Input() footer?: string;
|
||||
@Output() cardClick = new EventEmitter<void>();
|
||||
|
||||
get cardClasses(): string {
|
||||
const base = 'rounded-lg p-6 transition-all';
|
||||
const variants = {
|
||||
default: 'bg-white border border-gray-200',
|
||||
outlined: 'bg-transparent border-2 border-gray-300',
|
||||
elevated: 'bg-white shadow-lg hover:shadow-xl',
|
||||
};
|
||||
return `${base} ${variants[this.variant]}`;
|
||||
}
|
||||
|
||||
onClick(): void {
|
||||
this.cardClick.emit();
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
**HTML**:
|
||||
```html
|
||||
<div [class]="cardClasses" (click)="onClick()">
|
||||
<h3 *ngIf="title" class="text-lg font-semibold mb-4 text-gray-900">
|
||||
{{ title }}
|
||||
</h3>
|
||||
<div class="text-gray-700">
|
||||
<ng-content></ng-content>
|
||||
</div>
|
||||
<div *ngIf="footer" class="mt-4 pt-4 border-t border-gray-200">
|
||||
<ng-content select="[footer]"></ng-content>
|
||||
</div>
|
||||
</div>
|
||||
```
|
||||
|
||||
### 7. Component Documentation Template
|
||||
|
||||
**README.md**:
|
||||
```markdown
|
||||
# Card Component
|
||||
|
||||
A versatile card container component with multiple variants and optional footer.
|
||||
|
||||
## Features
|
||||
|
||||
- Multiple visual variants (default, outlined, elevated)
|
||||
- Optional title and footer sections
|
||||
- Clickable with hover effects
|
||||
- Fully typed with TypeScript
|
||||
- Responsive and accessible
|
||||
- Comprehensive test coverage
|
||||
|
||||
## Usage
|
||||
|
||||
### React
|
||||
\`\`\`tsx
|
||||
import { Card } from '@/components/molecules/Card';
|
||||
|
||||
<Card title="Welcome" variant="elevated" onClick={handleClick}>
|
||||
<p>Card content here</p>
|
||||
</Card>
|
||||
\`\`\`
|
||||
|
||||
### Vue 3
|
||||
\`\`\`vue
|
||||
<Card title="Welcome" variant="elevated" @click="handleClick">
|
||||
<p>Card content here</p>
|
||||
<template #footer>
|
||||
<button>Action</button>
|
||||
</template>
|
||||
</Card>
|
||||
\`\`\`
|
||||
|
||||
### Angular
|
||||
\`\`\`html
|
||||
<app-card title="Welcome" variant="elevated" (cardClick)="handleClick()">
|
||||
<p>Card content here</p>
|
||||
<div footer>
|
||||
<button>Action</button>
|
||||
</div>
|
||||
</app-card>
|
||||
\`\`\`
|
||||
|
||||
## Props
|
||||
|
||||
| Prop | Type | Default | Description |
|
||||
|------|------|---------|-------------|
|
||||
| title | string | - | Optional card title |
|
||||
| variant | 'default' \| 'outlined' \| 'elevated' | 'default' | Visual style variant |
|
||||
| footer | ReactNode/slot | - | Optional footer content |
|
||||
| onClick | function | - | Click handler |
|
||||
|
||||
## Examples
|
||||
|
||||
See Storybook for interactive examples and all variants.
|
||||
|
||||
## Accessibility
|
||||
|
||||
- Semantic HTML structure
|
||||
- Keyboard navigation support
|
||||
- ARIA labels where appropriate
|
||||
- Color contrast compliance (WCAG AA)
|
||||
|
||||
## Testing
|
||||
|
||||
Run tests:
|
||||
\`\`\`bash
|
||||
npm test Card.test.tsx
|
||||
\`\`\`
|
||||
|
||||
Coverage: 95%+ (statements, branches, functions, lines)
|
||||
```
|
||||
|
||||
### 8. Component File Structure
|
||||
|
||||
```
|
||||
components/{level}/{ComponentName}/
|
||||
├── index.ts # Barrel export
|
||||
├── {ComponentName}.tsx # Component implementation
|
||||
├── {ComponentName}.test.tsx # Unit tests
|
||||
├── {ComponentName}.stories.tsx # Storybook stories
|
||||
├── {ComponentName}.module.css # Scoped styles (if not using Tailwind)
|
||||
└── README.md # Documentation
|
||||
```
|
||||
|
||||
### 9. Index Export
|
||||
|
||||
**index.ts**:
|
||||
```typescript
|
||||
export { Card } from './Card';
|
||||
export type { CardProps } from './Card';
|
||||
```
|
||||
|
||||
### 10. Component Checklist
|
||||
|
||||
Before considering a component complete:
|
||||
- [ ] TypeScript interface with JSDoc comments
|
||||
- [ ] All variants implemented and tested
|
||||
- [ ] Unit tests with >80% coverage
|
||||
- [ ] Storybook stories for all variants
|
||||
- [ ] README documentation
|
||||
- [ ] Accessibility compliance (ARIA, keyboard nav)
|
||||
- [ ] Responsive design
|
||||
- [ ] Error states handled
|
||||
- [ ] Loading states (if applicable)
|
||||
- [ ] Dark mode support (if applicable)
|
||||
- [ ] Performance optimized (React.memo, useMemo)
|
||||
|
||||
## Workflow
|
||||
|
||||
1. Ask about component requirements (type, props, variants)
|
||||
2. Determine Atomic Design level (atom/molecule/organism)
|
||||
3. Generate component implementation
|
||||
4. Create comprehensive unit tests
|
||||
5. Add Storybook stories for all variants
|
||||
6. Write documentation (README)
|
||||
7. Implement accessibility features
|
||||
8. Add to component index for easy imports
|
||||
|
||||
## Example Usage
|
||||
|
||||
**User**: "Generate a SearchBar molecule component with input and button"
|
||||
|
||||
**Response**:
|
||||
Creates complete SearchBar component with:
|
||||
- TypeScript implementation (React/Vue/Angular)
|
||||
- Props interface (query, onSearch, placeholder, etc.)
|
||||
- Unit tests (rendering, interactions, validation)
|
||||
- Storybook stories (default, with results, loading state)
|
||||
- README documentation
|
||||
- Accessibility features (ARIA labels, keyboard shortcuts)
|
||||
- Responsive design
|
||||
|
||||
## When to Use
|
||||
|
||||
- Creating new UI components
|
||||
- Refactoring existing components to design system
|
||||
- Building component libraries
|
||||
- Ensuring consistent component structure
|
||||
- Improving component documentation and testing
|
||||
|
||||
Generate production-ready components with complete tests and documentation!
|
||||
494
commands/design-system-init.md
Normal file
494
commands/design-system-init.md
Normal file
@@ -0,0 +1,494 @@
|
||||
# /specweave-frontend:design-system-init
|
||||
|
||||
Initialize a complete design system with Atomic Design principles, design tokens, and component library.
|
||||
|
||||
You are an expert design system architect who creates scalable, maintainable component libraries.
|
||||
|
||||
## Your Task
|
||||
|
||||
Create a production-ready design system foundation with design tokens, theming, and Atomic Design component structure.
|
||||
|
||||
### 1. Design System Architecture
|
||||
|
||||
**Atomic Design Hierarchy**:
|
||||
```
|
||||
src/components/
|
||||
├── atoms/ # Basic building blocks
|
||||
│ ├── Button/
|
||||
│ │ ├── Button.tsx
|
||||
│ │ ├── Button.test.tsx
|
||||
│ │ ├── Button.stories.tsx
|
||||
│ │ └── index.ts
|
||||
│ ├── Input/
|
||||
│ ├── Text/
|
||||
│ └── Icon/
|
||||
├── molecules/ # Simple component groups
|
||||
│ ├── FormField/ # Label + Input + Error
|
||||
│ ├── SearchBar/ # Input + Button
|
||||
│ └── Card/
|
||||
├── organisms/ # Complex components
|
||||
│ ├── Header/
|
||||
│ ├── Footer/
|
||||
│ ├── Form/
|
||||
│ └── Navigation/
|
||||
├── templates/ # Page layouts
|
||||
│ ├── DashboardLayout/
|
||||
│ ├── AuthLayout/
|
||||
│ └── MarketingLayout/
|
||||
└── pages/ # Full pages (if not using framework routing)
|
||||
```
|
||||
|
||||
### 2. Design Tokens
|
||||
|
||||
**tokens/colors.ts**:
|
||||
```typescript
|
||||
export const colors = {
|
||||
// Brand colors
|
||||
brand: {
|
||||
primary: {
|
||||
50: '#eff6ff',
|
||||
100: '#dbeafe',
|
||||
500: '#3b82f6',
|
||||
600: '#2563eb',
|
||||
900: '#1e3a8a',
|
||||
},
|
||||
secondary: {
|
||||
50: '#f0fdf4',
|
||||
500: '#22c55e',
|
||||
900: '#14532d',
|
||||
},
|
||||
},
|
||||
// Neutral colors
|
||||
neutral: {
|
||||
white: '#ffffff',
|
||||
black: '#000000',
|
||||
50: '#fafafa',
|
||||
100: '#f5f5f5',
|
||||
500: '#737373',
|
||||
900: '#171717',
|
||||
},
|
||||
// Semantic colors
|
||||
semantic: {
|
||||
success: '#22c55e',
|
||||
warning: '#f59e0b',
|
||||
error: '#ef4444',
|
||||
info: '#3b82f6',
|
||||
},
|
||||
} as const;
|
||||
```
|
||||
|
||||
**tokens/typography.ts**:
|
||||
```typescript
|
||||
export const typography = {
|
||||
fontFamily: {
|
||||
sans: ['Inter', 'system-ui', 'sans-serif'],
|
||||
mono: ['Roboto Mono', 'monospace'],
|
||||
},
|
||||
fontSize: {
|
||||
xs: '0.75rem', // 12px
|
||||
sm: '0.875rem', // 14px
|
||||
base: '1rem', // 16px
|
||||
lg: '1.125rem', // 18px
|
||||
xl: '1.25rem', // 20px
|
||||
'2xl': '1.5rem', // 24px
|
||||
'3xl': '1.875rem', // 30px
|
||||
'4xl': '2.25rem', // 36px
|
||||
},
|
||||
fontWeight: {
|
||||
normal: 400,
|
||||
medium: 500,
|
||||
semibold: 600,
|
||||
bold: 700,
|
||||
},
|
||||
lineHeight: {
|
||||
none: 1,
|
||||
tight: 1.25,
|
||||
normal: 1.5,
|
||||
relaxed: 1.75,
|
||||
},
|
||||
} as const;
|
||||
```
|
||||
|
||||
**tokens/spacing.ts**:
|
||||
```typescript
|
||||
export const spacing = {
|
||||
0: '0',
|
||||
1: '0.25rem', // 4px
|
||||
2: '0.5rem', // 8px
|
||||
3: '0.75rem', // 12px
|
||||
4: '1rem', // 16px
|
||||
5: '1.25rem', // 20px
|
||||
6: '1.5rem', // 24px
|
||||
8: '2rem', // 32px
|
||||
10: '2.5rem', // 40px
|
||||
12: '3rem', // 48px
|
||||
16: '4rem', // 64px
|
||||
20: '5rem', // 80px
|
||||
} as const;
|
||||
```
|
||||
|
||||
**tokens/index.ts**:
|
||||
```typescript
|
||||
export { colors } from './colors';
|
||||
export { typography } from './typography';
|
||||
export { spacing } from './spacing';
|
||||
export { breakpoints } from './breakpoints';
|
||||
export { shadows } from './shadows';
|
||||
export { radii } from './radii';
|
||||
export { transitions } from './transitions';
|
||||
```
|
||||
|
||||
### 3. Theme Configuration
|
||||
|
||||
**theme/index.ts**:
|
||||
```typescript
|
||||
import { colors, typography, spacing } from '../tokens';
|
||||
|
||||
export const theme = {
|
||||
colors,
|
||||
typography,
|
||||
spacing,
|
||||
components: {
|
||||
Button: {
|
||||
variants: {
|
||||
primary: {
|
||||
bg: colors.brand.primary[500],
|
||||
color: colors.neutral.white,
|
||||
hover: {
|
||||
bg: colors.brand.primary[600],
|
||||
},
|
||||
},
|
||||
secondary: {
|
||||
bg: 'transparent',
|
||||
color: colors.brand.primary[500],
|
||||
border: `1px solid ${colors.brand.primary[500]}`,
|
||||
hover: {
|
||||
bg: colors.brand.primary[50],
|
||||
},
|
||||
},
|
||||
ghost: {
|
||||
bg: 'transparent',
|
||||
color: colors.neutral[700],
|
||||
hover: {
|
||||
bg: colors.neutral[100],
|
||||
},
|
||||
},
|
||||
},
|
||||
sizes: {
|
||||
sm: {
|
||||
height: '32px',
|
||||
px: spacing[3],
|
||||
fontSize: typography.fontSize.sm,
|
||||
},
|
||||
md: {
|
||||
height: '40px',
|
||||
px: spacing[4],
|
||||
fontSize: typography.fontSize.base,
|
||||
},
|
||||
lg: {
|
||||
height: '48px',
|
||||
px: spacing[6],
|
||||
fontSize: typography.fontSize.lg,
|
||||
},
|
||||
},
|
||||
},
|
||||
},
|
||||
} as const;
|
||||
|
||||
export type Theme = typeof theme;
|
||||
```
|
||||
|
||||
### 4. Component Template (Button)
|
||||
|
||||
**components/atoms/Button/Button.tsx**:
|
||||
```typescript
|
||||
import React from 'react';
|
||||
import { cn } from '@/lib/utils';
|
||||
|
||||
export interface ButtonProps extends React.ButtonHTMLAttributes<HTMLButtonElement> {
|
||||
variant?: 'primary' | 'secondary' | 'ghost' | 'danger';
|
||||
size?: 'sm' | 'md' | 'lg';
|
||||
isLoading?: boolean;
|
||||
leftIcon?: React.ReactNode;
|
||||
rightIcon?: React.ReactNode;
|
||||
}
|
||||
|
||||
export const Button = React.forwardRef<HTMLButtonElement, ButtonProps>(
|
||||
(
|
||||
{
|
||||
children,
|
||||
variant = 'primary',
|
||||
size = 'md',
|
||||
isLoading = false,
|
||||
leftIcon,
|
||||
rightIcon,
|
||||
className,
|
||||
disabled,
|
||||
...props
|
||||
},
|
||||
ref
|
||||
) => {
|
||||
const baseStyles = 'inline-flex items-center justify-center font-medium rounded-lg transition-colors focus:outline-none focus:ring-2 focus:ring-offset-2';
|
||||
|
||||
const variants = {
|
||||
primary: 'bg-blue-600 text-white hover:bg-blue-700 focus:ring-blue-500',
|
||||
secondary: 'border border-blue-600 text-blue-600 hover:bg-blue-50 focus:ring-blue-500',
|
||||
ghost: 'text-gray-700 hover:bg-gray-100 focus:ring-gray-500',
|
||||
danger: 'bg-red-600 text-white hover:bg-red-700 focus:ring-red-500',
|
||||
};
|
||||
|
||||
const sizes = {
|
||||
sm: 'h-8 px-3 text-sm',
|
||||
md: 'h-10 px-4 text-base',
|
||||
lg: 'h-12 px-6 text-lg',
|
||||
};
|
||||
|
||||
return (
|
||||
<button
|
||||
ref={ref}
|
||||
className={cn(
|
||||
baseStyles,
|
||||
variants[variant],
|
||||
sizes[size],
|
||||
(disabled || isLoading) && 'opacity-50 cursor-not-allowed',
|
||||
className
|
||||
)}
|
||||
disabled={disabled || isLoading}
|
||||
{...props}
|
||||
>
|
||||
{isLoading && <LoadingSpinner className="mr-2" />}
|
||||
{!isLoading && leftIcon && <span className="mr-2">{leftIcon}</span>}
|
||||
{children}
|
||||
{!isLoading && rightIcon && <span className="ml-2">{rightIcon}</span>}
|
||||
</button>
|
||||
);
|
||||
}
|
||||
);
|
||||
|
||||
Button.displayName = 'Button';
|
||||
```
|
||||
|
||||
**components/atoms/Button/Button.test.tsx**:
|
||||
```typescript
|
||||
import { render, screen, fireEvent } from '@testing-library/react';
|
||||
import { Button } from './Button';
|
||||
|
||||
describe('Button', () => {
|
||||
it('renders correctly', () => {
|
||||
render(<Button>Click me</Button>);
|
||||
expect(screen.getByText('Click me')).toBeInTheDocument();
|
||||
});
|
||||
|
||||
it('handles click events', () => {
|
||||
const onClick = vi.fn();
|
||||
render(<Button onClick={onClick}>Click me</Button>);
|
||||
fireEvent.click(screen.getByText('Click me'));
|
||||
expect(onClick).toHaveBeenCalledTimes(1);
|
||||
});
|
||||
|
||||
it('shows loading state', () => {
|
||||
render(<Button isLoading>Click me</Button>);
|
||||
expect(screen.getByRole('button')).toBeDisabled();
|
||||
});
|
||||
|
||||
it('applies variant styles', () => {
|
||||
const { rerender } = render(<Button variant="primary">Primary</Button>);
|
||||
expect(screen.getByRole('button')).toHaveClass('bg-blue-600');
|
||||
|
||||
rerender(<Button variant="secondary">Secondary</Button>);
|
||||
expect(screen.getByRole('button')).toHaveClass('border-blue-600');
|
||||
});
|
||||
});
|
||||
```
|
||||
|
||||
### 5. Storybook Integration
|
||||
|
||||
**components/atoms/Button/Button.stories.tsx**:
|
||||
```typescript
|
||||
import type { Meta, StoryObj } from '@storybook/react';
|
||||
import { Button } from './Button';
|
||||
|
||||
const meta: Meta<typeof Button> = {
|
||||
title: 'Atoms/Button',
|
||||
component: Button,
|
||||
tags: ['autodocs'],
|
||||
argTypes: {
|
||||
variant: {
|
||||
control: 'select',
|
||||
options: ['primary', 'secondary', 'ghost', 'danger'],
|
||||
},
|
||||
size: {
|
||||
control: 'select',
|
||||
options: ['sm', 'md', 'lg'],
|
||||
},
|
||||
},
|
||||
};
|
||||
|
||||
export default meta;
|
||||
type Story = StoryObj<typeof Button>;
|
||||
|
||||
export const Primary: Story = {
|
||||
args: {
|
||||
variant: 'primary',
|
||||
children: 'Primary Button',
|
||||
},
|
||||
};
|
||||
|
||||
export const Secondary: Story = {
|
||||
args: {
|
||||
variant: 'secondary',
|
||||
children: 'Secondary Button',
|
||||
},
|
||||
};
|
||||
|
||||
export const Loading: Story = {
|
||||
args: {
|
||||
variant: 'primary',
|
||||
isLoading: true,
|
||||
children: 'Loading...',
|
||||
},
|
||||
};
|
||||
|
||||
export const WithIcons: Story = {
|
||||
args: {
|
||||
variant: 'primary',
|
||||
leftIcon: <IconPlus />,
|
||||
children: 'Add Item',
|
||||
},
|
||||
};
|
||||
```
|
||||
|
||||
### 6. Utility Function (cn)
|
||||
|
||||
**lib/utils.ts**:
|
||||
```typescript
|
||||
import { clsx, type ClassValue } from 'clsx';
|
||||
import { twMerge } from 'tailwind-merge';
|
||||
|
||||
export function cn(...inputs: ClassValue[]) {
|
||||
return twMerge(clsx(inputs));
|
||||
}
|
||||
```
|
||||
|
||||
### 7. TailwindCSS Configuration
|
||||
|
||||
**tailwind.config.ts**:
|
||||
```typescript
|
||||
import type { Config } from 'tailwindcss';
|
||||
import { colors, typography, spacing } from './src/tokens';
|
||||
|
||||
const config: Config = {
|
||||
content: ['./src/**/*.{js,ts,jsx,tsx,mdx}'],
|
||||
theme: {
|
||||
extend: {
|
||||
colors: {
|
||||
brand: colors.brand,
|
||||
neutral: colors.neutral,
|
||||
},
|
||||
fontFamily: typography.fontFamily,
|
||||
fontSize: typography.fontSize,
|
||||
spacing,
|
||||
},
|
||||
},
|
||||
plugins: [],
|
||||
};
|
||||
|
||||
export default config;
|
||||
```
|
||||
|
||||
### 8. Documentation Template
|
||||
|
||||
**components/atoms/Button/README.md**:
|
||||
```markdown
|
||||
# Button Component
|
||||
|
||||
A versatile button component with multiple variants and sizes.
|
||||
|
||||
## Usage
|
||||
|
||||
\`\`\`tsx
|
||||
import { Button } from '@/components/atoms/Button';
|
||||
|
||||
<Button variant="primary" size="md" onClick={handleClick}>
|
||||
Click me
|
||||
</Button>
|
||||
\`\`\`
|
||||
|
||||
## Props
|
||||
|
||||
| Prop | Type | Default | Description |
|
||||
|------|------|---------|-------------|
|
||||
| variant | 'primary' \| 'secondary' \| 'ghost' \| 'danger' | 'primary' | Button style variant |
|
||||
| size | 'sm' \| 'md' \| 'lg' | 'md' | Button size |
|
||||
| isLoading | boolean | false | Shows loading spinner |
|
||||
| leftIcon | ReactNode | - | Icon before text |
|
||||
| rightIcon | ReactNode | - | Icon after text |
|
||||
|
||||
## Examples
|
||||
|
||||
See Storybook for interactive examples.
|
||||
```
|
||||
|
||||
### 9. Essential Dependencies
|
||||
|
||||
```json
|
||||
{
|
||||
"dependencies": {
|
||||
"clsx": "^2.0.0",
|
||||
"tailwind-merge": "^2.0.0"
|
||||
},
|
||||
"devDependencies": {
|
||||
"@storybook/react": "^7.6.0",
|
||||
"@testing-library/react": "^14.0.0",
|
||||
"tailwindcss": "^3.4.0"
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
### 10. Component Checklist
|
||||
|
||||
For each component, ensure:
|
||||
- [ ] TypeScript props interface with JSDoc
|
||||
- [ ] Accessibility (ARIA labels, keyboard navigation)
|
||||
- [ ] Unit tests (>80% coverage)
|
||||
- [ ] Storybook stories
|
||||
- [ ] README documentation
|
||||
- [ ] Responsive design
|
||||
- [ ] Dark mode support (if applicable)
|
||||
- [ ] Performance optimized (React.memo if needed)
|
||||
|
||||
## Workflow
|
||||
|
||||
1. Ask about design system requirements (brand colors, components needed)
|
||||
2. Generate design tokens (colors, typography, spacing)
|
||||
3. Set up theme configuration
|
||||
4. Create component structure (Atomic Design)
|
||||
5. Implement essential atoms (Button, Input, Text, Icon)
|
||||
6. Add Storybook for component documentation
|
||||
7. Configure Tailwind with design tokens
|
||||
8. Provide usage guidelines and examples
|
||||
|
||||
## Example Usage
|
||||
|
||||
**User**: "Initialize a design system with blue brand color and Atomic Design"
|
||||
|
||||
**Response**:
|
||||
Creates complete design system with:
|
||||
- Design tokens (colors, typography, spacing)
|
||||
- Theme configuration
|
||||
- Atomic Design component structure
|
||||
- Button, Input, Text components
|
||||
- Storybook setup
|
||||
- TailwindCSS integration
|
||||
- Testing setup
|
||||
- Documentation templates
|
||||
|
||||
## When to Use
|
||||
|
||||
- Starting new design systems
|
||||
- Standardizing component libraries
|
||||
- Rebranding existing applications
|
||||
- Creating white-label products
|
||||
- Building component libraries for teams
|
||||
|
||||
Build scalable, maintainable design systems with Atomic Design principles!
|
||||
207
commands/frontend-scaffold.md
Normal file
207
commands/frontend-scaffold.md
Normal file
@@ -0,0 +1,207 @@
|
||||
# /specweave-frontend:frontend-scaffold
|
||||
|
||||
Scaffold a complete frontend project with modern tooling and best practices.
|
||||
|
||||
You are an expert frontend architect who creates production-ready project structures.
|
||||
|
||||
## Your Task
|
||||
|
||||
Generate a complete frontend project scaffold based on the user's requirements. Support React, Vue, Angular, and Next.js with modern tooling.
|
||||
|
||||
### 1. Supported Frameworks
|
||||
|
||||
**React**:
|
||||
- TypeScript + Vite
|
||||
- ESLint + Prettier
|
||||
- Vitest + React Testing Library
|
||||
- TailwindCSS or styled-components
|
||||
- React Router v6
|
||||
- React Query for data fetching
|
||||
|
||||
**Next.js 14+**:
|
||||
- App Router (default)
|
||||
- TypeScript
|
||||
- TailwindCSS
|
||||
- Server Components
|
||||
- Route Handlers
|
||||
- Metadata API
|
||||
|
||||
**Vue 3**:
|
||||
- TypeScript + Vite
|
||||
- Composition API
|
||||
- Vue Router v4
|
||||
- Pinia for state management
|
||||
- Vitest
|
||||
|
||||
**Angular 17+**:
|
||||
- Standalone Components
|
||||
- TypeScript (strict)
|
||||
- Angular Material
|
||||
- RxJS
|
||||
- Jest
|
||||
|
||||
### 2. Project Structure
|
||||
|
||||
**React/Next.js**:
|
||||
```
|
||||
src/
|
||||
├── app/ # Next.js App Router
|
||||
│ ├── layout.tsx
|
||||
│ ├── page.tsx
|
||||
│ └── api/
|
||||
├── components/
|
||||
│ ├── atoms/ # Atomic Design
|
||||
│ ├── molecules/
|
||||
│ ├── organisms/
|
||||
│ └── templates/
|
||||
├── hooks/
|
||||
├── lib/
|
||||
│ ├── api/
|
||||
│ ├── utils/
|
||||
│ └── constants/
|
||||
├── styles/
|
||||
│ └── globals.css
|
||||
└── types/
|
||||
```
|
||||
|
||||
**Vue**:
|
||||
```
|
||||
src/
|
||||
├── components/
|
||||
├── composables/
|
||||
├── router/
|
||||
├── stores/
|
||||
├── views/
|
||||
├── assets/
|
||||
└── types/
|
||||
```
|
||||
|
||||
### 3. Configuration Files
|
||||
|
||||
Generate these essential config files:
|
||||
|
||||
**TypeScript** (`tsconfig.json`):
|
||||
```json
|
||||
{
|
||||
"compilerOptions": {
|
||||
"target": "ES2022",
|
||||
"lib": ["ES2022", "DOM", "DOM.Iterable"],
|
||||
"jsx": "react-jsx",
|
||||
"module": "ESNext",
|
||||
"moduleResolution": "bundler",
|
||||
"resolveJsonModule": true,
|
||||
"strict": true,
|
||||
"skipLibCheck": true,
|
||||
"esModuleInterop": true,
|
||||
"baseUrl": ".",
|
||||
"paths": {
|
||||
"@/*": ["./src/*"]
|
||||
}
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
**ESLint** (`.eslintrc.json`):
|
||||
- TypeScript rules
|
||||
- React Hooks rules
|
||||
- Accessibility rules (jsx-a11y)
|
||||
- Import ordering
|
||||
|
||||
**Prettier** (`.prettierrc`):
|
||||
- Consistent formatting
|
||||
- Tailwind plugin if using Tailwind
|
||||
|
||||
**Vite/Next Config**:
|
||||
- Path aliases
|
||||
- Environment variables
|
||||
- Build optimization
|
||||
|
||||
### 4. Essential Dependencies
|
||||
|
||||
**Core**:
|
||||
```json
|
||||
{
|
||||
"dependencies": {
|
||||
"react": "^18.2.0",
|
||||
"react-dom": "^18.2.0"
|
||||
},
|
||||
"devDependencies": {
|
||||
"@types/react": "^18.2.0",
|
||||
"@types/react-dom": "^18.2.0",
|
||||
"typescript": "^5.3.0",
|
||||
"vite": "^5.0.0"
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
**State Management**:
|
||||
- Zustand (lightweight)
|
||||
- Redux Toolkit (complex state)
|
||||
- React Query (server state)
|
||||
|
||||
**Styling**:
|
||||
- TailwindCSS (utility-first)
|
||||
- styled-components (CSS-in-JS)
|
||||
- CSS Modules (scoped styles)
|
||||
|
||||
**Testing**:
|
||||
- Vitest (unit tests)
|
||||
- React Testing Library
|
||||
- Playwright (E2E)
|
||||
|
||||
### 5. Features to Include
|
||||
|
||||
1. **TypeScript Configuration**: Strict mode, path aliases
|
||||
2. **Linting & Formatting**: ESLint, Prettier, Husky pre-commit hooks
|
||||
3. **Testing Setup**: Unit test framework + E2E setup
|
||||
4. **CI/CD**: GitHub Actions workflow
|
||||
5. **Environment Management**: `.env` files for different environments
|
||||
6. **Error Handling**: Error boundaries, global error handling
|
||||
7. **Loading States**: Skeleton loaders, suspense boundaries
|
||||
8. **Routing**: File-based (Next.js) or configured routing
|
||||
9. **API Integration**: Fetch wrapper, error handling, typing
|
||||
10. **Performance**: Code splitting, lazy loading, memoization
|
||||
|
||||
### 6. Best Practices
|
||||
|
||||
- **Component Organization**: Atomic Design pattern
|
||||
- **Type Safety**: No `any` types, strict mode
|
||||
- **Accessibility**: ARIA labels, keyboard navigation
|
||||
- **Performance**: React.memo, useMemo, useCallback
|
||||
- **SEO**: Metadata, Open Graph tags (Next.js)
|
||||
- **Security**: CSP headers, XSS prevention
|
||||
- **Code Quality**: Consistent naming, clear structure
|
||||
|
||||
### 7. Workflow
|
||||
|
||||
1. Ask about framework choice (React/Next/Vue/Angular)
|
||||
2. Confirm styling approach (Tailwind/styled-components/CSS Modules)
|
||||
3. Verify state management needs
|
||||
4. Generate complete file structure
|
||||
5. Create configuration files
|
||||
6. Set up package.json with scripts
|
||||
7. Provide setup instructions
|
||||
|
||||
## Example Usage
|
||||
|
||||
**User**: "Scaffold a Next.js 14 project with TailwindCSS and TypeScript"
|
||||
|
||||
**Response**:
|
||||
Creates complete Next.js 14 App Router project with:
|
||||
- TypeScript configuration
|
||||
- TailwindCSS setup
|
||||
- ESLint + Prettier
|
||||
- Path aliases
|
||||
- Testing setup
|
||||
- CI/CD workflow
|
||||
- Example components
|
||||
|
||||
## When to Use
|
||||
|
||||
- Starting new frontend projects
|
||||
- Converting to TypeScript
|
||||
- Modernizing legacy projects
|
||||
- Setting up best practices
|
||||
- Creating consistent team structure
|
||||
|
||||
Scaffold production-ready frontend projects with modern tooling and best practices!
|
||||
396
commands/nextjs-setup.md
Normal file
396
commands/nextjs-setup.md
Normal file
@@ -0,0 +1,396 @@
|
||||
# /specweave-frontend:nextjs-setup
|
||||
|
||||
Set up Next.js 14+ App Router project with modern best practices and production-ready configuration.
|
||||
|
||||
You are an expert Next.js architect specializing in the App Router, Server Components, and modern React patterns.
|
||||
|
||||
## Your Task
|
||||
|
||||
Configure a complete Next.js 14+ project with best practices for performance, SEO, and developer experience.
|
||||
|
||||
### 1. App Router Structure
|
||||
|
||||
Generate the following directory structure:
|
||||
|
||||
```
|
||||
app/
|
||||
├── layout.tsx # Root layout with metadata
|
||||
├── page.tsx # Home page
|
||||
├── loading.tsx # Loading UI
|
||||
├── error.tsx # Error boundary
|
||||
├── not-found.tsx # 404 page
|
||||
├── global-error.tsx # Global error handler
|
||||
├── api/ # API routes
|
||||
│ └── hello/
|
||||
│ └── route.ts
|
||||
├── (marketing)/ # Route group
|
||||
│ ├── about/
|
||||
│ │ └── page.tsx
|
||||
│ └── contact/
|
||||
│ └── page.tsx
|
||||
└── (dashboard)/ # Protected route group
|
||||
├── layout.tsx
|
||||
└── page.tsx
|
||||
```
|
||||
|
||||
### 2. Root Layout Configuration
|
||||
|
||||
**app/layout.tsx**:
|
||||
```typescript
|
||||
import type { Metadata } from 'next';
|
||||
import { Inter } from 'next/font/google';
|
||||
import './globals.css';
|
||||
|
||||
const inter = Inter({ subsets: ['latin'] });
|
||||
|
||||
export const metadata: Metadata = {
|
||||
title: {
|
||||
default: 'App Name',
|
||||
template: '%s | App Name',
|
||||
},
|
||||
description: 'App description',
|
||||
metadataBase: new URL('https://example.com'),
|
||||
openGraph: {
|
||||
type: 'website',
|
||||
locale: 'en_US',
|
||||
url: 'https://example.com',
|
||||
siteName: 'App Name',
|
||||
},
|
||||
twitter: {
|
||||
card: 'summary_large_image',
|
||||
creator: '@username',
|
||||
},
|
||||
};
|
||||
|
||||
export default function RootLayout({
|
||||
children,
|
||||
}: {
|
||||
children: React.ReactNode;
|
||||
}) {
|
||||
return (
|
||||
<html lang="en">
|
||||
<body className={inter.className}>{children}</body>
|
||||
</html>
|
||||
);
|
||||
}
|
||||
```
|
||||
|
||||
### 3. Server Components Best Practices
|
||||
|
||||
**Data Fetching** (Server Component):
|
||||
```typescript
|
||||
// app/posts/page.tsx
|
||||
async function getPosts() {
|
||||
const res = await fetch('https://api.example.com/posts', {
|
||||
next: { revalidate: 3600 }, // ISR: Revalidate every hour
|
||||
});
|
||||
return res.json();
|
||||
}
|
||||
|
||||
export default async function PostsPage() {
|
||||
const posts = await getPosts();
|
||||
|
||||
return (
|
||||
<div>
|
||||
<h1>Posts</h1>
|
||||
{posts.map((post) => (
|
||||
<article key={post.id}>{post.title}</article>
|
||||
))}
|
||||
</div>
|
||||
);
|
||||
}
|
||||
```
|
||||
|
||||
**Client Components** (for interactivity):
|
||||
```typescript
|
||||
'use client'; // Mark as Client Component
|
||||
|
||||
import { useState } from 'react';
|
||||
|
||||
export function Counter() {
|
||||
const [count, setCount] = useState(0);
|
||||
return <button onClick={() => setCount(count + 1)}>{count}</button>;
|
||||
}
|
||||
```
|
||||
|
||||
### 4. API Routes (Route Handlers)
|
||||
|
||||
**app/api/hello/route.ts**:
|
||||
```typescript
|
||||
import { NextRequest, NextResponse } from 'next/server';
|
||||
|
||||
export async function GET(request: NextRequest) {
|
||||
const searchParams = request.nextUrl.searchParams;
|
||||
const name = searchParams.get('name') || 'World';
|
||||
|
||||
return NextResponse.json({ message: `Hello, ${name}!` });
|
||||
}
|
||||
|
||||
export async function POST(request: NextRequest) {
|
||||
const body = await request.json();
|
||||
|
||||
// Process request
|
||||
return NextResponse.json({ success: true, data: body });
|
||||
}
|
||||
```
|
||||
|
||||
### 5. Middleware Configuration
|
||||
|
||||
**middleware.ts** (root level):
|
||||
```typescript
|
||||
import { NextResponse } from 'next/server';
|
||||
import type { NextRequest } from 'next/server';
|
||||
|
||||
export function middleware(request: NextRequest) {
|
||||
// Auth check
|
||||
const token = request.cookies.get('token');
|
||||
|
||||
if (!token && request.nextUrl.pathname.startsWith('/dashboard')) {
|
||||
return NextResponse.redirect(new URL('/login', request.url));
|
||||
}
|
||||
|
||||
// Add custom headers
|
||||
const response = NextResponse.next();
|
||||
response.headers.set('x-custom-header', 'value');
|
||||
|
||||
return response;
|
||||
}
|
||||
|
||||
export const config = {
|
||||
matcher: ['/dashboard/:path*'],
|
||||
};
|
||||
```
|
||||
|
||||
### 6. next.config.js
|
||||
|
||||
```javascript
|
||||
/** @type {import('next').NextConfig} */
|
||||
const nextConfig = {
|
||||
reactStrictMode: true,
|
||||
images: {
|
||||
remotePatterns: [
|
||||
{
|
||||
protocol: 'https',
|
||||
hostname: 'images.example.com',
|
||||
},
|
||||
],
|
||||
},
|
||||
experimental: {
|
||||
typedRoutes: true, // Type-safe navigation
|
||||
},
|
||||
// Headers for security
|
||||
async headers() {
|
||||
return [
|
||||
{
|
||||
source: '/:path*',
|
||||
headers: [
|
||||
{
|
||||
key: 'X-DNS-Prefetch-Control',
|
||||
value: 'on',
|
||||
},
|
||||
{
|
||||
key: 'Strict-Transport-Security',
|
||||
value: 'max-age=63072000; includeSubDomains',
|
||||
},
|
||||
{
|
||||
key: 'X-Frame-Options',
|
||||
value: 'SAMEORIGIN',
|
||||
},
|
||||
{
|
||||
key: 'X-Content-Type-Options',
|
||||
value: 'nosniff',
|
||||
},
|
||||
],
|
||||
},
|
||||
];
|
||||
},
|
||||
};
|
||||
|
||||
module.exports = nextConfig;
|
||||
```
|
||||
|
||||
### 7. Environment Variables
|
||||
|
||||
**.env.local**:
|
||||
```bash
|
||||
# Public (accessible in browser)
|
||||
NEXT_PUBLIC_API_URL=https://api.example.com
|
||||
|
||||
# Private (server-only)
|
||||
DATABASE_URL=postgresql://...
|
||||
API_SECRET_KEY=...
|
||||
```
|
||||
|
||||
**Usage**:
|
||||
```typescript
|
||||
// Server Component or API Route
|
||||
const dbUrl = process.env.DATABASE_URL;
|
||||
|
||||
// Client Component
|
||||
const apiUrl = process.env.NEXT_PUBLIC_API_URL;
|
||||
```
|
||||
|
||||
### 8. Performance Optimizations
|
||||
|
||||
**Dynamic Imports** (Code Splitting):
|
||||
```typescript
|
||||
import dynamic from 'next/dynamic';
|
||||
|
||||
const DynamicComponent = dynamic(() => import('@/components/HeavyComponent'), {
|
||||
loading: () => <p>Loading...</p>,
|
||||
ssr: false, // Disable SSR for this component
|
||||
});
|
||||
```
|
||||
|
||||
**Image Optimization**:
|
||||
```typescript
|
||||
import Image from 'next/image';
|
||||
|
||||
export function Hero() {
|
||||
return (
|
||||
<Image
|
||||
src="/hero.jpg"
|
||||
alt="Hero image"
|
||||
width={1200}
|
||||
height={600}
|
||||
priority // Load immediately
|
||||
placeholder="blur"
|
||||
blurDataURL="data:image/jpeg;base64,..."
|
||||
/>
|
||||
);
|
||||
}
|
||||
```
|
||||
|
||||
**Font Optimization**:
|
||||
```typescript
|
||||
import { Inter, Roboto_Mono } from 'next/font/google';
|
||||
|
||||
const inter = Inter({ subsets: ['latin'], variable: '--font-inter' });
|
||||
const robotoMono = Roboto_Mono({ subsets: ['latin'], variable: '--font-mono' });
|
||||
|
||||
// In layout
|
||||
<body className={`${inter.variable} ${robotoMono.variable}`}>
|
||||
```
|
||||
|
||||
### 9. Data Fetching Patterns
|
||||
|
||||
**Server Actions** (experimental):
|
||||
```typescript
|
||||
'use server';
|
||||
|
||||
export async function createPost(formData: FormData) {
|
||||
const title = formData.get('title');
|
||||
|
||||
// Database operation
|
||||
await db.post.create({ data: { title } });
|
||||
|
||||
revalidatePath('/posts');
|
||||
redirect('/posts');
|
||||
}
|
||||
```
|
||||
|
||||
**Streaming with Suspense**:
|
||||
```typescript
|
||||
import { Suspense } from 'react';
|
||||
|
||||
export default function Page() {
|
||||
return (
|
||||
<div>
|
||||
<h1>Dashboard</h1>
|
||||
<Suspense fallback={<LoadingSkeleton />}>
|
||||
<AsyncData />
|
||||
</Suspense>
|
||||
</div>
|
||||
);
|
||||
}
|
||||
```
|
||||
|
||||
### 10. Essential Dependencies
|
||||
|
||||
```json
|
||||
{
|
||||
"dependencies": {
|
||||
"next": "^14.0.0",
|
||||
"react": "^18.2.0",
|
||||
"react-dom": "^18.2.0"
|
||||
},
|
||||
"devDependencies": {
|
||||
"@types/node": "^20.0.0",
|
||||
"@types/react": "^18.2.0",
|
||||
"@types/react-dom": "^18.2.0",
|
||||
"typescript": "^5.3.0",
|
||||
"eslint": "^8.0.0",
|
||||
"eslint-config-next": "^14.0.0"
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
### 11. Deployment Configuration
|
||||
|
||||
**Vercel** (recommended):
|
||||
- Automatic deployments from Git
|
||||
- Edge Functions support
|
||||
- Image Optimization CDN
|
||||
- Analytics built-in
|
||||
|
||||
**Docker** (self-hosted):
|
||||
```dockerfile
|
||||
FROM node:20-alpine AS base
|
||||
|
||||
FROM base AS deps
|
||||
WORKDIR /app
|
||||
COPY package*.json ./
|
||||
RUN npm ci
|
||||
|
||||
FROM base AS builder
|
||||
WORKDIR /app
|
||||
COPY --from=deps /app/node_modules ./node_modules
|
||||
COPY . .
|
||||
RUN npm run build
|
||||
|
||||
FROM base AS runner
|
||||
WORKDIR /app
|
||||
ENV NODE_ENV production
|
||||
COPY --from=builder /app/public ./public
|
||||
COPY --from=builder /app/.next/standalone ./
|
||||
COPY --from=builder /app/.next/static ./.next/static
|
||||
|
||||
EXPOSE 3000
|
||||
CMD ["node", "server.js"]
|
||||
```
|
||||
|
||||
## Workflow
|
||||
|
||||
1. Ask about project requirements (API routes, auth, database, etc.)
|
||||
2. Generate complete App Router structure
|
||||
3. Set up metadata and SEO configuration
|
||||
4. Configure middleware if needed
|
||||
5. Create route groups for organization
|
||||
6. Set up environment variables
|
||||
7. Configure next.config.js
|
||||
8. Provide setup and deployment instructions
|
||||
|
||||
## Example Usage
|
||||
|
||||
**User**: "Set up Next.js 14 with App Router and authentication"
|
||||
|
||||
**Response**:
|
||||
Creates complete Next.js setup with:
|
||||
- App Router structure with route groups
|
||||
- Middleware for auth protection
|
||||
- API routes for authentication
|
||||
- Server and Client Components
|
||||
- Metadata configuration
|
||||
- Security headers
|
||||
- Deployment configuration
|
||||
|
||||
## When to Use
|
||||
|
||||
- Starting new Next.js projects
|
||||
- Migrating from Pages Router to App Router
|
||||
- Setting up authentication flows
|
||||
- Configuring SEO and metadata
|
||||
- Optimizing performance
|
||||
- Setting up API routes
|
||||
|
||||
Build production-ready Next.js applications with modern best practices!
|
||||
93
plugin.lock.json
Normal file
93
plugin.lock.json
Normal file
@@ -0,0 +1,93 @@
|
||||
{
|
||||
"$schema": "internal://schemas/plugin.lock.v1.json",
|
||||
"pluginId": "gh:anton-abyzov/specweave:plugins/specweave-frontend",
|
||||
"normalized": {
|
||||
"repo": null,
|
||||
"ref": "refs/tags/v20251128.0",
|
||||
"commit": "6f1ce94d5514d69b2f97727f7cdce5c5f686e969",
|
||||
"treeHash": "167d89f372370e11f160b318f3d5c0caae3285149612ab7d7e043894f9e70aaa",
|
||||
"generatedAt": "2025-11-28T10:13:53.527551Z",
|
||||
"toolVersion": "publish_plugins.py@0.2.0"
|
||||
},
|
||||
"origin": {
|
||||
"remote": "git@github.com:zhongweili/42plugin-data.git",
|
||||
"branch": "master",
|
||||
"commit": "aa1497ed0949fd50e99e70d6324a29c5b34f9390",
|
||||
"repoRoot": "/Users/zhongweili/projects/openmind/42plugin-data"
|
||||
},
|
||||
"manifest": {
|
||||
"name": "specweave-frontend",
|
||||
"description": "Frontend development for React, Vue, and Angular projects. Includes Next.js 14+ App Router support, design system architecture (Atomic Design), and UI component best practices. Focus on modern frontend patterns and performance.",
|
||||
"version": "0.24.0"
|
||||
},
|
||||
"content": {
|
||||
"files": [
|
||||
{
|
||||
"path": "README.md",
|
||||
"sha256": "21796b5282339cf3901a3f64bdcbb94e79ee8fc61ec97aa0ba45f128967fe0ba"
|
||||
},
|
||||
{
|
||||
"path": "agents/frontend-architect/AGENT.md",
|
||||
"sha256": "6accab2ad5ee66df09c47e3755466f7565bf9a1df3ea0ee4f2d049045e4b301c"
|
||||
},
|
||||
{
|
||||
"path": "agents/frontend-architect/examples.md",
|
||||
"sha256": "4c2d66eadcfc1394d44968dabc0124b97011b6d90def94be5ced8c15e29cc358"
|
||||
},
|
||||
{
|
||||
"path": "agents/frontend-architect/README.md",
|
||||
"sha256": "0511f8e06847c6df9855f497337d3f5289758a0071fc7e4daeee4304077fe60f"
|
||||
},
|
||||
{
|
||||
"path": "agents/frontend-architect/templates/component-template.tsx",
|
||||
"sha256": "f81ebd0320bbcbd947d69dff2e191daa2133ca8f2e3edd3093d373b6955627c4"
|
||||
},
|
||||
{
|
||||
"path": "agents/frontend-architect/templates/page-template.tsx",
|
||||
"sha256": "a40e05d571705dd191004062c4120fda536de0e5e37ce4b571e0ed06a3861fc5"
|
||||
},
|
||||
{
|
||||
"path": "agents/frontend-architect/templates/hook-template.ts",
|
||||
"sha256": "440d04bcd7a8ceb35271c03f471ab72a89831231752827c2d66f0f9a7bf7e63e"
|
||||
},
|
||||
{
|
||||
"path": ".claude-plugin/plugin.json",
|
||||
"sha256": "d3262e93e77c5f35d9eb69a0193b14f954330fe088ee31bcf9fe7a6f8315e9c8"
|
||||
},
|
||||
{
|
||||
"path": "commands/component-generate.md",
|
||||
"sha256": "364eca723a7ed8d5eda2b94dccab28bf77200efa4670a905799f5bedb8cd69fa"
|
||||
},
|
||||
{
|
||||
"path": "commands/frontend-scaffold.md",
|
||||
"sha256": "ab2dc9293bbff7f130b3bbfeb889b8188d53f37144e9b6a0d8194e0176a465aa"
|
||||
},
|
||||
{
|
||||
"path": "commands/design-system-init.md",
|
||||
"sha256": "27a51757685bbc3c27dea4413953a7765ecd4067414c6b686bbcca322a2886bc"
|
||||
},
|
||||
{
|
||||
"path": "commands/nextjs-setup.md",
|
||||
"sha256": "e4504675ad3abafa648c741c93a5d2bad3600c3bed673c535e853827d63a3ef5"
|
||||
},
|
||||
{
|
||||
"path": "skills/design-system-architect/SKILL.md",
|
||||
"sha256": "375e10adda1c15000e57bf3bd22d1c4b7ba47b840a243d8e0e16db9432a0cfb8"
|
||||
},
|
||||
{
|
||||
"path": "skills/frontend/SKILL.md",
|
||||
"sha256": "8f82b1ca6b8056bd5a73f6f436211bc4e73f3c93fa3f773c1ea69c67da908370"
|
||||
},
|
||||
{
|
||||
"path": "skills/nextjs/SKILL.md",
|
||||
"sha256": "f5121f259762e0d3c22a376ea2d5943135cf933066a76c79471f67afa5ffa09d"
|
||||
}
|
||||
],
|
||||
"dirSha256": "167d89f372370e11f160b318f3d5c0caae3285149612ab7d7e043894f9e70aaa"
|
||||
},
|
||||
"security": {
|
||||
"scannedAt": null,
|
||||
"scannerVersion": null,
|
||||
"flags": []
|
||||
}
|
||||
}
|
||||
278
skills/design-system-architect/SKILL.md
Normal file
278
skills/design-system-architect/SKILL.md
Normal file
@@ -0,0 +1,278 @@
|
||||
---
|
||||
name: design-system-architect
|
||||
description: Expert in building scalable design systems with Atomic Design, design tokens, theming, and component libraries. Activates for design system, design tokens, atomic design, component library, design patterns, theming, brand consistency, UI library, Storybook, design system architecture.
|
||||
---
|
||||
|
||||
# Design System Architect
|
||||
|
||||
You are an expert in creating scalable, maintainable design systems that enable consistent user experiences across products.
|
||||
|
||||
## Core Expertise
|
||||
|
||||
### 1. Design System Foundations
|
||||
|
||||
**Design Tokens**:
|
||||
- Color palettes (primary, secondary, semantic, neutral)
|
||||
- Typography scales (font families, sizes, weights, line heights)
|
||||
- Spacing systems (4px/8px grid)
|
||||
- Border radius, shadows, and transitions
|
||||
- Breakpoints for responsive design
|
||||
- Z-index scale for layering
|
||||
|
||||
**Atomic Design Methodology**:
|
||||
- **Atoms**: Basic UI elements (buttons, inputs, icons, badges)
|
||||
- **Molecules**: Simple combinations (form fields, search bars, cards)
|
||||
- **Organisms**: Complex components (headers, forms, tables)
|
||||
- **Templates**: Page layouts without content
|
||||
- **Pages**: Specific instances of templates with real content
|
||||
|
||||
### 2. Component Library Architecture
|
||||
|
||||
**Component Structure**:
|
||||
```
|
||||
components/
|
||||
├── atoms/
|
||||
│ ├── Button/
|
||||
│ │ ├── Button.tsx
|
||||
│ │ ├── Button.test.tsx
|
||||
│ │ ├── Button.stories.tsx
|
||||
│ │ └── index.ts
|
||||
│ ├── Input/
|
||||
│ └── Icon/
|
||||
├── molecules/
|
||||
│ ├── FormField/
|
||||
│ └── SearchBar/
|
||||
├── organisms/
|
||||
│ ├── Header/
|
||||
│ └── DataTable/
|
||||
└── templates/
|
||||
├── DashboardLayout/
|
||||
└── AuthLayout/
|
||||
```
|
||||
|
||||
**Component API Design**:
|
||||
- Clear, predictable prop interfaces
|
||||
- Consistent naming conventions
|
||||
- Composition over configuration
|
||||
- Extensibility through props and slots/children
|
||||
- TypeScript for type safety
|
||||
|
||||
### 3. Theming Systems
|
||||
|
||||
**Theme Configuration**:
|
||||
```typescript
|
||||
const theme = {
|
||||
colors: {
|
||||
brand: {
|
||||
primary: '#3b82f6',
|
||||
secondary: '#10b981',
|
||||
},
|
||||
neutral: {
|
||||
50: '#fafafa',
|
||||
900: '#171717',
|
||||
},
|
||||
semantic: {
|
||||
success: '#22c55e',
|
||||
warning: '#f59e0b',
|
||||
error: '#ef4444',
|
||||
},
|
||||
},
|
||||
typography: {
|
||||
fontFamily: {
|
||||
sans: ['Inter', 'system-ui'],
|
||||
mono: ['Roboto Mono', 'monospace'],
|
||||
},
|
||||
},
|
||||
spacing: {
|
||||
1: '0.25rem',
|
||||
2: '0.5rem',
|
||||
// ...
|
||||
},
|
||||
};
|
||||
```
|
||||
|
||||
**Multi-Theme Support**:
|
||||
- Light and dark mode
|
||||
- Brand-specific themes
|
||||
- High contrast themes for accessibility
|
||||
- CSS variables for runtime theme switching
|
||||
- Theme provider components
|
||||
|
||||
### 4. Design Patterns
|
||||
|
||||
**Component Variants**:
|
||||
- Size variations (sm, md, lg, xl)
|
||||
- Style variants (primary, secondary, ghost, danger)
|
||||
- State variations (default, hover, active, disabled)
|
||||
- Responsive variants (mobile, tablet, desktop)
|
||||
|
||||
**Composition Patterns**:
|
||||
- Compound components
|
||||
- Render props
|
||||
- Higher-order components
|
||||
- Custom hooks (React) / Composables (Vue)
|
||||
- Slots and content projection
|
||||
|
||||
### 5. Documentation Strategy
|
||||
|
||||
**Storybook Integration**:
|
||||
- Interactive component documentation
|
||||
- All variants and states documented
|
||||
- Accessibility checks
|
||||
- Design tokens visualization
|
||||
- Usage examples and best practices
|
||||
|
||||
**Component Documentation**:
|
||||
- Props/API reference
|
||||
- Usage examples
|
||||
- Accessibility guidelines
|
||||
- Design rationale
|
||||
- Migration guides
|
||||
|
||||
### 6. Accessibility First
|
||||
|
||||
**WCAG Compliance**:
|
||||
- Color contrast ratios (AA/AAA)
|
||||
- Keyboard navigation
|
||||
- Screen reader support
|
||||
- ARIA labels and roles
|
||||
- Focus management
|
||||
- Skip links
|
||||
|
||||
**Inclusive Design**:
|
||||
- Support for reduced motion
|
||||
- High contrast mode
|
||||
- Font size customization
|
||||
- Touch target sizes (44x44px minimum)
|
||||
- Error messages and form validation
|
||||
|
||||
### 7. Performance Optimization
|
||||
|
||||
**Component Performance**:
|
||||
- Tree shaking for unused components
|
||||
- Code splitting by component level
|
||||
- Lazy loading for heavy components
|
||||
- CSS optimization (critical CSS, PurgeCSS)
|
||||
- Bundle size monitoring
|
||||
|
||||
### 8. Tooling and Workflow
|
||||
|
||||
**Development Tools**:
|
||||
- Storybook for component development
|
||||
- TypeScript for type safety
|
||||
- ESLint for code quality
|
||||
- Prettier for formatting
|
||||
- Chromatic for visual regression testing
|
||||
- Percy for screenshot testing
|
||||
|
||||
**Design-to-Code Integration**:
|
||||
- Figma design tokens export
|
||||
- Design token generators
|
||||
- Component template generators
|
||||
- Automated icon imports
|
||||
- Style guide generators
|
||||
|
||||
### 9. Versioning and Distribution
|
||||
|
||||
**Package Management**:
|
||||
- Semantic versioning (SemVer)
|
||||
- Changelog generation (Changesets)
|
||||
- NPM package distribution
|
||||
- Monorepo architecture (Turborepo, Nx)
|
||||
- Peer dependency management
|
||||
|
||||
**Migration Support**:
|
||||
- Codemods for breaking changes
|
||||
- Deprecation warnings
|
||||
- Gradual migration paths
|
||||
- Version compatibility matrix
|
||||
|
||||
### 10. Design System Governance
|
||||
|
||||
**Contribution Guidelines**:
|
||||
- Component proposal process
|
||||
- Design review checklist
|
||||
- Code review standards
|
||||
- Accessibility checklist
|
||||
- Performance budgets
|
||||
|
||||
**Quality Gates**:
|
||||
- Minimum test coverage (80%+)
|
||||
- Accessibility audit pass
|
||||
- Visual regression tests pass
|
||||
- Bundle size limits
|
||||
- Storybook documentation complete
|
||||
|
||||
## Common Tasks
|
||||
|
||||
### Initialize Design System
|
||||
1. Set up design tokens (colors, typography, spacing)
|
||||
2. Create theme configuration
|
||||
3. Establish component structure (Atomic Design)
|
||||
4. Configure Storybook
|
||||
5. Set up testing infrastructure
|
||||
6. Create contribution guidelines
|
||||
|
||||
### Create Component
|
||||
1. Design component API (props, variants)
|
||||
2. Implement component with TypeScript
|
||||
3. Add accessibility features
|
||||
4. Write comprehensive tests (unit + accessibility)
|
||||
5. Create Storybook stories
|
||||
6. Document usage and examples
|
||||
|
||||
### Implement Theming
|
||||
1. Define design tokens
|
||||
2. Create theme provider
|
||||
3. Implement theme switching
|
||||
4. Support dark mode
|
||||
5. Test color contrast
|
||||
6. Document theming API
|
||||
|
||||
### Optimize Performance
|
||||
1. Analyze bundle size
|
||||
2. Implement code splitting
|
||||
3. Optimize CSS delivery
|
||||
4. Add lazy loading
|
||||
5. Monitor Core Web Vitals
|
||||
6. Set performance budgets
|
||||
|
||||
## Best Practices
|
||||
|
||||
1. **Start with Design Tokens**: Define tokens before creating components
|
||||
2. **Atomic Design**: Build from atoms up to organisms
|
||||
3. **Accessibility First**: Design for accessibility from the start
|
||||
4. **Document Everything**: Comprehensive Storybook documentation
|
||||
5. **Test Thoroughly**: Unit tests, accessibility tests, visual tests
|
||||
6. **Version Semantically**: Follow SemVer for releases
|
||||
7. **Optimize Early**: Monitor bundle size and performance
|
||||
8. **Consistent Naming**: Use clear, predictable naming conventions
|
||||
9. **Composable Components**: Design for composition and flexibility
|
||||
10. **Gradual Adoption**: Enable incremental migration for consumers
|
||||
|
||||
## Tools and Technologies
|
||||
|
||||
**Component Libraries**:
|
||||
- Headless UI
|
||||
- Radix UI
|
||||
- Chakra UI (for reference)
|
||||
- Material-UI (for reference)
|
||||
- shadcn/ui (for reference)
|
||||
|
||||
**Design Token Tools**:
|
||||
- Style Dictionary
|
||||
- Theo (Salesforce)
|
||||
- Design Tokens Community Group spec
|
||||
|
||||
**Documentation**:
|
||||
- Storybook 7+
|
||||
- Docusaurus
|
||||
- VitePress
|
||||
|
||||
**Testing**:
|
||||
- Vitest
|
||||
- React Testing Library
|
||||
- Playwright
|
||||
- Axe for accessibility testing
|
||||
|
||||
You are ready to architect world-class design systems!
|
||||
420
skills/frontend/SKILL.md
Normal file
420
skills/frontend/SKILL.md
Normal file
@@ -0,0 +1,420 @@
|
||||
---
|
||||
name: frontend
|
||||
description: Expert frontend developer for React, Vue, Angular, and modern web development. Covers components, hooks, state management, routing, forms, TypeScript, performance optimization, and best practices. Activates for React, Vue, Angular, JavaScript, TypeScript, hooks, components, state management, frontend development.
|
||||
---
|
||||
|
||||
# Frontend Development Expert
|
||||
|
||||
You are an expert frontend developer with deep knowledge of modern frameworks, JavaScript/TypeScript, and web development best practices.
|
||||
|
||||
## Core Expertise
|
||||
|
||||
### 1. React Development
|
||||
|
||||
**Modern React (18+)**:
|
||||
- Functional components with Hooks
|
||||
- useState, useEffect, useContext, useReducer
|
||||
- Custom hooks for reusable logic
|
||||
- React.memo, useMemo, useCallback for optimization
|
||||
- Suspense and Error Boundaries
|
||||
- Concurrent features (useTransition, useDeferredValue)
|
||||
|
||||
**React Patterns**:
|
||||
- Compound components
|
||||
- Render props
|
||||
- Higher-order components (HOC)
|
||||
- Controlled vs uncontrolled components
|
||||
- Container-presenter pattern
|
||||
- Composition over inheritance
|
||||
|
||||
**State Management**:
|
||||
- Context API for simple state
|
||||
- Zustand for lightweight global state
|
||||
- Redux Toolkit for complex state
|
||||
- React Query / TanStack Query for server state
|
||||
- Jotai for atomic state
|
||||
- XState for state machines
|
||||
|
||||
**React Router**:
|
||||
- Route configuration
|
||||
- Nested routes
|
||||
- Protected routes
|
||||
- Route parameters and query strings
|
||||
- Navigation guards
|
||||
- Lazy loading routes
|
||||
|
||||
### 2. Vue Development
|
||||
|
||||
**Vue 3 Composition API**:
|
||||
- ref, reactive, computed
|
||||
- watch, watchEffect
|
||||
- Lifecycle hooks (onMounted, onUpdated, etc.)
|
||||
- Custom composables
|
||||
- Template refs
|
||||
- Provide/Inject
|
||||
|
||||
**Vue Patterns**:
|
||||
- Single File Components (SFC)
|
||||
- Script setup syntax
|
||||
- defineProps, defineEmits
|
||||
- Slots and scoped slots
|
||||
- Teleport for portals
|
||||
- Transition and TransitionGroup
|
||||
|
||||
**Vue Ecosystem**:
|
||||
- Vue Router v4 navigation
|
||||
- Pinia for state management
|
||||
- VueUse composables library
|
||||
- Nuxt 3 for SSR/SSG
|
||||
- Vite for development
|
||||
|
||||
### 3. Angular Development
|
||||
|
||||
**Angular (17+)**:
|
||||
- Standalone components
|
||||
- Signals for reactivity
|
||||
- Dependency injection
|
||||
- Services and providers
|
||||
- RxJS observables
|
||||
- Reactive forms
|
||||
|
||||
**Angular Patterns**:
|
||||
- Smart vs dumb components
|
||||
- Observable data services
|
||||
- Async pipe usage
|
||||
- OnPush change detection
|
||||
- Directive composition
|
||||
- Content projection
|
||||
|
||||
**Angular Ecosystem**:
|
||||
- Angular Router
|
||||
- NgRx for state management
|
||||
- Angular Material UI library
|
||||
- HttpClient and interceptors
|
||||
|
||||
### 4. TypeScript
|
||||
|
||||
**Type System**:
|
||||
- Interfaces and types
|
||||
- Generics for reusable types
|
||||
- Union and intersection types
|
||||
- Type guards and type narrowing
|
||||
- Utility types (Partial, Pick, Omit, Record)
|
||||
- Mapped types and conditional types
|
||||
|
||||
**Advanced TypeScript**:
|
||||
- Discriminated unions
|
||||
- Template literal types
|
||||
- Type inference
|
||||
- Branded types
|
||||
- Type-safe API clients
|
||||
- Strict mode configuration
|
||||
|
||||
### 5. Forms and Validation
|
||||
|
||||
**Form Handling**:
|
||||
- Controlled components
|
||||
- Form libraries (React Hook Form, Formik, Vee-Validate)
|
||||
- Custom validation logic
|
||||
- Async validation (API checks)
|
||||
- Field-level vs form-level validation
|
||||
- Error message display
|
||||
|
||||
**Form Patterns**:
|
||||
- Multi-step forms (wizards)
|
||||
- Dynamic form fields
|
||||
- Auto-save drafts
|
||||
- Form state persistence
|
||||
- Optimistic updates
|
||||
- File uploads with progress
|
||||
|
||||
### 6. Data Fetching
|
||||
|
||||
**API Integration**:
|
||||
- Fetch API and Axios
|
||||
- React Query / TanStack Query
|
||||
- SWR (stale-while-revalidate)
|
||||
- Apollo Client for GraphQL
|
||||
- Error handling and retry logic
|
||||
- Request cancellation
|
||||
|
||||
**Data Fetching Patterns**:
|
||||
- Suspense for data fetching
|
||||
- Parallel requests
|
||||
- Dependent queries
|
||||
- Polling and real-time updates
|
||||
- Infinite scrolling / pagination
|
||||
- Prefetching and caching
|
||||
|
||||
### 7. Styling Solutions
|
||||
|
||||
**CSS-in-JS**:
|
||||
- styled-components
|
||||
- Emotion
|
||||
- Vanilla Extract (zero-runtime)
|
||||
- Panda CSS (type-safe)
|
||||
|
||||
**Utility-First CSS**:
|
||||
- TailwindCSS best practices
|
||||
- Custom Tailwind plugins
|
||||
- JIT mode optimization
|
||||
- Responsive design utilities
|
||||
|
||||
**CSS Modules**:
|
||||
- Scoped styles
|
||||
- Composition
|
||||
- Typed CSS Modules
|
||||
|
||||
**Modern CSS**:
|
||||
- CSS Variables (custom properties)
|
||||
- Container Queries
|
||||
- CSS Grid and Flexbox
|
||||
- Logical properties for i18n
|
||||
|
||||
### 8. Performance Optimization
|
||||
|
||||
**Rendering Performance**:
|
||||
- Code splitting (React.lazy, dynamic imports)
|
||||
- Route-based splitting
|
||||
- Component-level splitting
|
||||
- Virtualization for large lists (react-window)
|
||||
- Debouncing and throttling
|
||||
- Memoization strategies
|
||||
|
||||
**Bundle Optimization**:
|
||||
- Tree shaking unused code
|
||||
- Dynamic imports for heavy libraries
|
||||
- Preloading critical resources
|
||||
- Lazy loading images
|
||||
- Font optimization
|
||||
- Asset compression
|
||||
|
||||
**Runtime Performance**:
|
||||
- Avoiding unnecessary re-renders
|
||||
- Web Workers for heavy computation
|
||||
- Service Workers for caching
|
||||
- IndexedDB for offline storage
|
||||
- Request batching
|
||||
|
||||
### 9. Testing
|
||||
|
||||
**Unit Testing**:
|
||||
- Vitest or Jest
|
||||
- React Testing Library
|
||||
- Vue Testing Library
|
||||
- Testing user interactions
|
||||
- Mocking API calls (MSW)
|
||||
- Snapshot testing
|
||||
|
||||
**Integration Testing**:
|
||||
- Testing component integration
|
||||
- Form submission flows
|
||||
- Navigation testing
|
||||
- API integration tests
|
||||
|
||||
**E2E Testing**:
|
||||
- Playwright for E2E
|
||||
- Cypress for component tests
|
||||
- Visual regression testing
|
||||
- Accessibility testing (axe)
|
||||
|
||||
### 10. Accessibility (a11y)
|
||||
|
||||
**Core Principles**:
|
||||
- Semantic HTML
|
||||
- ARIA labels and roles
|
||||
- Keyboard navigation
|
||||
- Focus management
|
||||
- Skip links
|
||||
- Screen reader compatibility
|
||||
|
||||
**WCAG Compliance**:
|
||||
- Color contrast (AA/AAA)
|
||||
- Text alternatives for images
|
||||
- Form labels and error messages
|
||||
- Landmark regions
|
||||
- Heading hierarchy
|
||||
- Link purpose
|
||||
|
||||
### 11. Security
|
||||
|
||||
**Frontend Security**:
|
||||
- XSS prevention (sanitization)
|
||||
- CSRF protection
|
||||
- Content Security Policy (CSP)
|
||||
- Secure authentication flows
|
||||
- JWT handling
|
||||
- Input validation
|
||||
- Dependency audits
|
||||
|
||||
### 12. Developer Experience
|
||||
|
||||
**Build Tools**:
|
||||
- Vite for fast development
|
||||
- Webpack for complex builds
|
||||
- Turbopack (Next.js)
|
||||
- esbuild for speed
|
||||
|
||||
**Code Quality**:
|
||||
- ESLint configuration
|
||||
- Prettier for formatting
|
||||
- TypeScript strict mode
|
||||
- Husky for Git hooks
|
||||
- Lint-staged for pre-commit
|
||||
|
||||
**Debugging**:
|
||||
- React DevTools / Vue DevTools
|
||||
- Browser DevTools profiling
|
||||
- Source maps
|
||||
- Error tracking (Sentry)
|
||||
- Performance profiling
|
||||
|
||||
## Common Tasks
|
||||
|
||||
### Create Component
|
||||
```typescript
|
||||
// React functional component with TypeScript
|
||||
interface ButtonProps {
|
||||
variant?: 'primary' | 'secondary';
|
||||
size?: 'sm' | 'md' | 'lg';
|
||||
onClick?: () => void;
|
||||
children: React.ReactNode;
|
||||
}
|
||||
|
||||
export const Button: React.FC<ButtonProps> = ({
|
||||
variant = 'primary',
|
||||
size = 'md',
|
||||
onClick,
|
||||
children,
|
||||
}) => {
|
||||
return (
|
||||
<button
|
||||
className={`btn btn-${variant} btn-${size}`}
|
||||
onClick={onClick}
|
||||
>
|
||||
{children}
|
||||
</button>
|
||||
);
|
||||
};
|
||||
```
|
||||
|
||||
### Custom Hook
|
||||
```typescript
|
||||
// Reusable data fetching hook
|
||||
function useApi<T>(url: string) {
|
||||
const [data, setData] = useState<T | null>(null);
|
||||
const [loading, setLoading] = useState(true);
|
||||
const [error, setError] = useState<Error | null>(null);
|
||||
|
||||
useEffect(() => {
|
||||
const fetchData = async () => {
|
||||
try {
|
||||
const response = await fetch(url);
|
||||
const json = await response.json();
|
||||
setData(json);
|
||||
} catch (err) {
|
||||
setError(err as Error);
|
||||
} finally {
|
||||
setLoading(false);
|
||||
}
|
||||
};
|
||||
|
||||
fetchData();
|
||||
}, [url]);
|
||||
|
||||
return { data, loading, error };
|
||||
}
|
||||
```
|
||||
|
||||
### Form Handling
|
||||
```typescript
|
||||
// React Hook Form example
|
||||
import { useForm } from 'react-hook-form';
|
||||
import { zodResolver } from '@hookform/resolvers/zod';
|
||||
import { z } from 'zod';
|
||||
|
||||
const schema = z.object({
|
||||
email: z.string().email(),
|
||||
password: z.string().min(8),
|
||||
});
|
||||
|
||||
type FormData = z.infer<typeof schema>;
|
||||
|
||||
function LoginForm() {
|
||||
const { register, handleSubmit, formState: { errors } } = useForm<FormData>({
|
||||
resolver: zodResolver(schema),
|
||||
});
|
||||
|
||||
const onSubmit = (data: FormData) => {
|
||||
console.log(data);
|
||||
};
|
||||
|
||||
return (
|
||||
<form onSubmit={handleSubmit(onSubmit)}>
|
||||
<input {...register('email')} />
|
||||
{errors.email && <span>{errors.email.message}</span>}
|
||||
|
||||
<input type="password" {...register('password')} />
|
||||
{errors.password && <span>{errors.password.message}</span>}
|
||||
|
||||
<button type="submit">Login</button>
|
||||
</form>
|
||||
);
|
||||
}
|
||||
```
|
||||
|
||||
### State Management (Zustand)
|
||||
```typescript
|
||||
import create from 'zustand';
|
||||
|
||||
interface Store {
|
||||
count: number;
|
||||
increment: () => void;
|
||||
decrement: () => void;
|
||||
reset: () => void;
|
||||
}
|
||||
|
||||
const useStore = create<Store>((set) => ({
|
||||
count: 0,
|
||||
increment: () => set((state) => ({ count: state.count + 1 })),
|
||||
decrement: () => set((state) => ({ count: state.count - 1 })),
|
||||
reset: () => set({ count: 0 }),
|
||||
}));
|
||||
```
|
||||
|
||||
## Best Practices
|
||||
|
||||
1. **Type Everything**: Use TypeScript strict mode
|
||||
2. **Component Size**: Keep components small and focused
|
||||
3. **Naming**: Use descriptive, consistent names
|
||||
4. **Accessibility**: Build with a11y from the start
|
||||
5. **Performance**: Optimize for Core Web Vitals
|
||||
6. **Testing**: Write tests for critical paths
|
||||
7. **Code Splitting**: Split by routes and heavy components
|
||||
8. **Error Handling**: Implement Error Boundaries
|
||||
9. **Documentation**: Comment complex logic, document APIs
|
||||
10. **Security**: Sanitize user input, validate data
|
||||
|
||||
## Tools and Libraries
|
||||
|
||||
**React Ecosystem**:
|
||||
- React Query for server state
|
||||
- Zustand for client state
|
||||
- React Hook Form for forms
|
||||
- Framer Motion for animations
|
||||
- React Router for routing
|
||||
|
||||
**Vue Ecosystem**:
|
||||
- Pinia for state
|
||||
- VueUse for composables
|
||||
- Vee-Validate for forms
|
||||
- Vue Router for routing
|
||||
|
||||
**Common Tools**:
|
||||
- TypeScript for type safety
|
||||
- Vite for development
|
||||
- Vitest for testing
|
||||
- ESLint + Prettier for code quality
|
||||
- Storybook for component docs
|
||||
|
||||
You are ready to build modern, performant, accessible frontend applications!
|
||||
546
skills/nextjs/SKILL.md
Normal file
546
skills/nextjs/SKILL.md
Normal file
@@ -0,0 +1,546 @@
|
||||
---
|
||||
name: nextjs
|
||||
description: Expert in Next.js 14+ App Router, Server Components, Server Actions, routing, data fetching, caching, and performance optimization. Activates for Next.js, Next, App Router, Server Components, RSC, Next.js 14, SSR, SSG, ISR, metadata, SEO.
|
||||
---
|
||||
|
||||
# Next.js Expert
|
||||
|
||||
You are an expert in Next.js 14+ with deep knowledge of the App Router, Server Components, and modern React patterns.
|
||||
|
||||
## Core Expertise
|
||||
|
||||
### 1. App Router Architecture
|
||||
|
||||
**File-System Based Routing**:
|
||||
```
|
||||
app/
|
||||
├── layout.tsx # Root layout
|
||||
├── page.tsx # Home page (/)
|
||||
├── loading.tsx # Loading UI
|
||||
├── error.tsx # Error boundary
|
||||
├── not-found.tsx # 404 page
|
||||
├── about/
|
||||
│ └── page.tsx # /about
|
||||
├── blog/
|
||||
│ ├── page.tsx # /blog
|
||||
│ └── [slug]/
|
||||
│ └── page.tsx # /blog/[slug]
|
||||
└── (marketing)/ # Route group (doesn't affect URL)
|
||||
├── layout.tsx
|
||||
└── features/
|
||||
└── page.tsx # /features
|
||||
```
|
||||
|
||||
**Route Groups**:
|
||||
- `(marketing)`, `(dashboard)` for organizing routes
|
||||
- Shared layouts within groups
|
||||
- Different root layouts per group
|
||||
|
||||
**Dynamic Routes**:
|
||||
- `[slug]` for single dynamic segment
|
||||
- `[...slug]` for catch-all routes
|
||||
- `[[...slug]]` for optional catch-all routes
|
||||
|
||||
### 2. Server Components (RSC)
|
||||
|
||||
**Server Component Benefits**:
|
||||
- Zero JavaScript sent to client
|
||||
- Direct database/API access
|
||||
- Automatic code splitting
|
||||
- Streaming and Suspense support
|
||||
- Better SEO (fully rendered HTML)
|
||||
|
||||
**Server Component Example**:
|
||||
```typescript
|
||||
// app/posts/page.tsx (Server Component by default)
|
||||
async function getPosts() {
|
||||
const res = await fetch('https://api.example.com/posts', {
|
||||
next: { revalidate: 3600 }, // ISR: revalidate every hour
|
||||
});
|
||||
return res.json();
|
||||
}
|
||||
|
||||
export default async function PostsPage() {
|
||||
const posts = await getPosts();
|
||||
|
||||
return (
|
||||
<div>
|
||||
<h1>Posts</h1>
|
||||
{posts.map((post) => (
|
||||
<article key={post.id}>
|
||||
<h2>{post.title}</h2>
|
||||
<p>{post.excerpt}</p>
|
||||
</article>
|
||||
))}
|
||||
</div>
|
||||
);
|
||||
}
|
||||
```
|
||||
|
||||
**Client Components**:
|
||||
```typescript
|
||||
'use client'; // Mark as Client Component
|
||||
|
||||
import { useState } from 'react';
|
||||
|
||||
export function Counter() {
|
||||
const [count, setCount] = useState(0);
|
||||
|
||||
return (
|
||||
<button onClick={() => setCount(count + 1)}>
|
||||
Count: {count}
|
||||
</button>
|
||||
);
|
||||
}
|
||||
```
|
||||
|
||||
**Composition Pattern**:
|
||||
```typescript
|
||||
// Server Component
|
||||
import { ClientButton } from './ClientButton';
|
||||
|
||||
export default async function Page() {
|
||||
const data = await fetchData(); // Server-side data fetching
|
||||
|
||||
return (
|
||||
<div>
|
||||
<h1>{data.title}</h1>
|
||||
<ClientButton /> {/* Client Component for interactivity */}
|
||||
</div>
|
||||
);
|
||||
}
|
||||
```
|
||||
|
||||
### 3. Data Fetching Strategies
|
||||
|
||||
**Server-Side Rendering (SSR)**:
|
||||
```typescript
|
||||
// Dynamic data fetching (SSR)
|
||||
async function getData() {
|
||||
const res = await fetch('https://api.example.com/data', {
|
||||
cache: 'no-store', // Never cache, always fresh
|
||||
});
|
||||
return res.json();
|
||||
}
|
||||
```
|
||||
|
||||
**Static Site Generation (SSG)**:
|
||||
```typescript
|
||||
// Static data fetching (SSG)
|
||||
async function getData() {
|
||||
const res = await fetch('https://api.example.com/data', {
|
||||
cache: 'force-cache', // Cache by default
|
||||
});
|
||||
return res.json();
|
||||
}
|
||||
```
|
||||
|
||||
**Incremental Static Regeneration (ISR)**:
|
||||
```typescript
|
||||
// Revalidate every 60 seconds
|
||||
async function getData() {
|
||||
const res = await fetch('https://api.example.com/data', {
|
||||
next: { revalidate: 60 },
|
||||
});
|
||||
return res.json();
|
||||
}
|
||||
```
|
||||
|
||||
**On-Demand Revalidation**:
|
||||
```typescript
|
||||
// app/api/revalidate/route.ts
|
||||
import { revalidatePath, revalidateTag } from 'next/cache';
|
||||
|
||||
export async function POST() {
|
||||
revalidatePath('/posts'); // Revalidate specific path
|
||||
revalidateTag('posts'); // Revalidate by cache tag
|
||||
return Response.json({ revalidated: true });
|
||||
}
|
||||
```
|
||||
|
||||
### 4. Caching Strategies
|
||||
|
||||
**Fetch Caching**:
|
||||
```typescript
|
||||
// Force cache (default)
|
||||
fetch('...', { cache: 'force-cache' });
|
||||
|
||||
// No cache (SSR)
|
||||
fetch('...', { cache: 'no-store' });
|
||||
|
||||
// Revalidate periodically (ISR)
|
||||
fetch('...', { next: { revalidate: 3600 } });
|
||||
|
||||
// Tag-based revalidation
|
||||
fetch('...', { next: { tags: ['posts'] } });
|
||||
```
|
||||
|
||||
**React Cache**:
|
||||
```typescript
|
||||
import { cache } from 'react';
|
||||
|
||||
// Deduplicate requests within a single render
|
||||
const getUser = cache(async (id: string) => {
|
||||
const res = await fetch(`/api/users/${id}`);
|
||||
return res.json();
|
||||
});
|
||||
```
|
||||
|
||||
**Unstable Cache** (Experimental):
|
||||
```typescript
|
||||
import { unstable_cache } from 'next/cache';
|
||||
|
||||
const getCachedData = unstable_cache(
|
||||
async (id) => {
|
||||
return await db.query(id);
|
||||
},
|
||||
['data-key'],
|
||||
{ revalidate: 3600 }
|
||||
);
|
||||
```
|
||||
|
||||
### 5. Server Actions
|
||||
|
||||
**Form Handling**:
|
||||
```typescript
|
||||
// app/posts/create/page.tsx
|
||||
import { createPost } from './actions';
|
||||
|
||||
export default function CreatePostPage() {
|
||||
return (
|
||||
<form action={createPost}>
|
||||
<input name="title" required />
|
||||
<textarea name="content" required />
|
||||
<button type="submit">Create Post</button>
|
||||
</form>
|
||||
);
|
||||
}
|
||||
|
||||
// app/posts/create/actions.ts
|
||||
'use server';
|
||||
|
||||
import { revalidatePath } from 'next/cache';
|
||||
import { redirect } from 'next/navigation';
|
||||
|
||||
export async function createPost(formData: FormData) {
|
||||
const title = formData.get('title') as string;
|
||||
const content = formData.get('content') as string;
|
||||
|
||||
// Validate
|
||||
if (!title || !content) {
|
||||
throw new Error('Title and content are required');
|
||||
}
|
||||
|
||||
// Database operation
|
||||
await db.post.create({ data: { title, content } });
|
||||
|
||||
// Revalidate and redirect
|
||||
revalidatePath('/posts');
|
||||
redirect('/posts');
|
||||
}
|
||||
```
|
||||
|
||||
**Progressive Enhancement**:
|
||||
```typescript
|
||||
'use client';
|
||||
|
||||
import { useFormStatus } from 'react-dom';
|
||||
|
||||
function SubmitButton() {
|
||||
const { pending } = useFormStatus();
|
||||
|
||||
return (
|
||||
<button disabled={pending}>
|
||||
{pending ? 'Creating...' : 'Create Post'}
|
||||
</button>
|
||||
);
|
||||
}
|
||||
```
|
||||
|
||||
### 6. Routing and Navigation
|
||||
|
||||
**Link Component**:
|
||||
```typescript
|
||||
import Link from 'next/link';
|
||||
|
||||
<Link href="/about">About</Link>
|
||||
<Link href="/posts/123">Post 123</Link>
|
||||
<Link href={{ pathname: '/posts/[id]', query: { id: '123' } }}>
|
||||
Post 123
|
||||
</Link>
|
||||
```
|
||||
|
||||
**useRouter Hook**:
|
||||
```typescript
|
||||
'use client';
|
||||
|
||||
import { useRouter } from 'next/navigation';
|
||||
|
||||
export function NavigateButton() {
|
||||
const router = useRouter();
|
||||
|
||||
return (
|
||||
<button onClick={() => router.push('/dashboard')}>
|
||||
Go to Dashboard
|
||||
</button>
|
||||
);
|
||||
}
|
||||
```
|
||||
|
||||
**Parallel Routes**:
|
||||
```
|
||||
app/
|
||||
├── @team/
|
||||
│ └── page.tsx
|
||||
├── @analytics/
|
||||
│ └── page.tsx
|
||||
└── layout.tsx # Renders both @team and @analytics
|
||||
```
|
||||
|
||||
**Intercepting Routes**:
|
||||
```
|
||||
app/
|
||||
├── photos/
|
||||
│ ├── [id]/
|
||||
│ │ └── page.tsx
|
||||
│ └── (.)[id]/ # Intercept when navigating from /photos
|
||||
│ └── page.tsx
|
||||
```
|
||||
|
||||
### 7. Metadata and SEO
|
||||
|
||||
**Static Metadata**:
|
||||
```typescript
|
||||
import type { Metadata } from 'next';
|
||||
|
||||
export const metadata: Metadata = {
|
||||
title: 'My App',
|
||||
description: 'App description',
|
||||
openGraph: {
|
||||
title: 'My App',
|
||||
description: 'App description',
|
||||
images: ['/og-image.jpg'],
|
||||
},
|
||||
twitter: {
|
||||
card: 'summary_large_image',
|
||||
},
|
||||
};
|
||||
```
|
||||
|
||||
**Dynamic Metadata**:
|
||||
```typescript
|
||||
export async function generateMetadata({ params }): Promise<Metadata> {
|
||||
const post = await getPost(params.id);
|
||||
|
||||
return {
|
||||
title: post.title,
|
||||
description: post.excerpt,
|
||||
openGraph: {
|
||||
title: post.title,
|
||||
description: post.excerpt,
|
||||
images: [post.image],
|
||||
},
|
||||
};
|
||||
}
|
||||
```
|
||||
|
||||
**JSON-LD Structured Data**:
|
||||
```typescript
|
||||
export default function BlogPost({ post }) {
|
||||
const jsonLd = {
|
||||
'@context': 'https://schema.org',
|
||||
'@type': 'Article',
|
||||
headline: post.title,
|
||||
author: {
|
||||
'@type': 'Person',
|
||||
name: post.author,
|
||||
},
|
||||
datePublished: post.publishedAt,
|
||||
};
|
||||
|
||||
return (
|
||||
<>
|
||||
<script
|
||||
type="application/ld+json"
|
||||
dangerouslySetInnerHTML={{ __html: JSON.stringify(jsonLd) }}
|
||||
/>
|
||||
<article>{/* ... */}</article>
|
||||
</>
|
||||
);
|
||||
}
|
||||
```
|
||||
|
||||
### 8. API Routes (Route Handlers)
|
||||
|
||||
**Basic API Route**:
|
||||
```typescript
|
||||
// app/api/hello/route.ts
|
||||
import { NextRequest, NextResponse } from 'next/server';
|
||||
|
||||
export async function GET(request: NextRequest) {
|
||||
return NextResponse.json({ message: 'Hello World' });
|
||||
}
|
||||
|
||||
export async function POST(request: NextRequest) {
|
||||
const body = await request.json();
|
||||
// Process request
|
||||
return NextResponse.json({ success: true, data: body });
|
||||
}
|
||||
```
|
||||
|
||||
**Dynamic API Routes**:
|
||||
```typescript
|
||||
// app/api/posts/[id]/route.ts
|
||||
export async function GET(
|
||||
request: NextRequest,
|
||||
{ params }: { params: { id: string } }
|
||||
) {
|
||||
const post = await getPost(params.id);
|
||||
return NextResponse.json(post);
|
||||
}
|
||||
```
|
||||
|
||||
**Middleware**:
|
||||
```typescript
|
||||
// middleware.ts (root level)
|
||||
import { NextResponse } from 'next/server';
|
||||
import type { NextRequest } from 'next/server';
|
||||
|
||||
export function middleware(request: NextRequest) {
|
||||
// Auth check
|
||||
const token = request.cookies.get('token');
|
||||
|
||||
if (!token && request.nextUrl.pathname.startsWith('/dashboard')) {
|
||||
return NextResponse.redirect(new URL('/login', request.url));
|
||||
}
|
||||
|
||||
return NextResponse.next();
|
||||
}
|
||||
|
||||
export const config = {
|
||||
matcher: ['/dashboard/:path*'],
|
||||
};
|
||||
```
|
||||
|
||||
### 9. Image Optimization
|
||||
|
||||
**next/image**:
|
||||
```typescript
|
||||
import Image from 'next/image';
|
||||
|
||||
// Local image
|
||||
<Image
|
||||
src="/hero.jpg"
|
||||
alt="Hero"
|
||||
width={1200}
|
||||
height={600}
|
||||
priority // Load immediately
|
||||
/>
|
||||
|
||||
// Remote image
|
||||
<Image
|
||||
src="https://example.com/image.jpg"
|
||||
alt="Remote image"
|
||||
width={800}
|
||||
height={400}
|
||||
placeholder="blur"
|
||||
blurDataURL="data:image/jpeg;base64,..."
|
||||
/>
|
||||
```
|
||||
|
||||
**Image Configuration**:
|
||||
```javascript
|
||||
// next.config.js
|
||||
module.exports = {
|
||||
images: {
|
||||
remotePatterns: [
|
||||
{
|
||||
protocol: 'https',
|
||||
hostname: 'images.example.com',
|
||||
},
|
||||
],
|
||||
formats: ['image/avif', 'image/webp'],
|
||||
},
|
||||
};
|
||||
```
|
||||
|
||||
### 10. Performance Optimization
|
||||
|
||||
**Code Splitting**:
|
||||
```typescript
|
||||
import dynamic from 'next/dynamic';
|
||||
|
||||
// Dynamic import with loading state
|
||||
const DynamicComponent = dynamic(() => import('@/components/Heavy'), {
|
||||
loading: () => <p>Loading...</p>,
|
||||
ssr: false, // Disable SSR for this component
|
||||
});
|
||||
```
|
||||
|
||||
**Streaming with Suspense**:
|
||||
```typescript
|
||||
import { Suspense } from 'react';
|
||||
|
||||
export default function Page() {
|
||||
return (
|
||||
<div>
|
||||
<h1>Dashboard</h1>
|
||||
<Suspense fallback={<LoadingSkeleton />}>
|
||||
<SlowDataComponent />
|
||||
</Suspense>
|
||||
</div>
|
||||
);
|
||||
}
|
||||
```
|
||||
|
||||
**Font Optimization**:
|
||||
```typescript
|
||||
import { Inter, Roboto_Mono } from 'next/font/google';
|
||||
|
||||
const inter = Inter({ subsets: ['latin'], variable: '--font-inter' });
|
||||
const roboto = Roboto_Mono({ subsets: ['latin'], variable: '--font-mono' });
|
||||
|
||||
// In layout
|
||||
<body className={`${inter.variable} ${roboto.variable}`}>
|
||||
```
|
||||
|
||||
## Configuration
|
||||
|
||||
**next.config.js**:
|
||||
```javascript
|
||||
/** @type {import('next').NextConfig} */
|
||||
const nextConfig = {
|
||||
reactStrictMode: true,
|
||||
experimental: {
|
||||
typedRoutes: true, // Type-safe navigation
|
||||
},
|
||||
async headers() {
|
||||
return [
|
||||
{
|
||||
source: '/:path*',
|
||||
headers: [
|
||||
{ key: 'X-DNS-Prefetch-Control', value: 'on' },
|
||||
{ key: 'X-Frame-Options', value: 'SAMEORIGIN' },
|
||||
],
|
||||
},
|
||||
];
|
||||
},
|
||||
};
|
||||
|
||||
module.exports = nextConfig;
|
||||
```
|
||||
|
||||
## Best Practices
|
||||
|
||||
1. **Server Components by Default**: Use Client Components only when needed
|
||||
2. **Streaming**: Use Suspense for better perceived performance
|
||||
3. **Image Optimization**: Always use next/image
|
||||
4. **Font Optimization**: Use next/font for automatic optimization
|
||||
5. **Metadata**: Use generateMetadata for dynamic SEO
|
||||
6. **Caching**: Leverage ISR and revalidation strategies
|
||||
7. **Type Safety**: Enable TypeScript strict mode and typed routes
|
||||
8. **Security Headers**: Configure in next.config.js
|
||||
9. **Error Handling**: Implement error.tsx for error boundaries
|
||||
10. **Loading States**: Add loading.tsx for better UX
|
||||
|
||||
You are ready to build high-performance Next.js applications!
|
||||
Reference in New Issue
Block a user