How tientruongminh/nextjsdemo works
<explanation>
1. Identify the project type and purpose
- This is a full‑stack e‑commerce “Shop bán hàng đơn giản” demo:
• Frontend: Next.js 14 (React‑based, server‑rendered)
• Backend: Fastify (Node.js web server)
• Database: Prisma (SQLite in dev, can be swapped)
- Key features: user registration/login, CRUD products, basic SEO.
2. Analyze the file structure
- Top‑level:
• /client – Next.js app with app‑directory, API routes, components, styling, schema validations
• /server – Fastify app with controllers, routes, plugins, schema validations, Prisma in /prisma
• Root package.json – workspace management, scripts
- Frontend patterns:
• App router (layout, pages under /app)
• Reusable UI in /components/ui, shared logic in /lib and /schemaValidations
• API calls centralized in /apiRequests
- Backend patterns:
• Routes → Controllers → Hooks → Plugins
• Schema validation via fastify validatorCompiler.plugins
• Prisma client in database/index.ts
• JWT auth utilities, error‑handler plugin.
3. Insights from README
- Confirms tech stack and functional scope: authentication, product management, SEO focus.
- No existing diagram – we need to illustrate both sides and their interaction.
4. How to create the system design diagram
a. Main components
• Browser (User)
• Next.js Frontend
• Fastify Backend
• Database (Prisma + SQLite/Postgres)
• External services (e.g., authentication store or file storage if extended)
b. Relationships & interactions
• Browser ↔ Frontend: HTTP(S) page requests, client-side navigation, data fetching via fetch/Next API routes
• Frontend ↔ Backend: REST calls to Fastify endpoints (/api/auth, /api/products, etc.)
• Backend ↔ Database: ORM queries via Prisma client
c. Architectural patterns
• Frontend: React + Server Components, API routes as thin proxies
• Backend: MVC‑like (routers→controllers), plugin‑based middleware, schema‑driven validation
d. Technologies & frameworks
• Next.js 14, React, Tailwind CSS
• Fastify, Prisma, JWT, Zod or JSON‑schema validations
• Node.js, ESBuild (if used), PM2 (ecosystem.config.js)
5. Tailoring the diagram for a full‑stack application
- Draw separate “Frontend” and “Backend” zones.
- Under Frontend: distinguish SSR (server components) and CSR (client components), static assets.
- Under Backend: show route registration, plugin chain (auth, error handler, validator), controller layer.
- Show database adapter beneath backend.
6. Elements to include in the diagram
- Clear labels: e.g., “Next.js App”, “Fastify Server”, “Prisma (DB)”
- Directional arrows:
• Page load flow: Browser → Next.js Server → Browser
• Data flow: Browser → Frontend fetch → Backend REST → DB
- Color coding/shapes:
• Rectangles for services, cylinder for database, cloud icon for external services
• Different colors for “UI”, “API”, “Database”
7. Detailed guidelines
- Start by sketching boundaries: Client vs Server vs Database
- Within each boundary, list sub‑components (e.g., Next.js App Router, Fastify Plugins)
- Show all entry points (Next API routes, Fastify endpoints)
- Annotate with HTTP methods or protocol (GET, POST, JWT Bearer)
- Use consistent iconography or shapes to group elements
- Keep legend to explain color or shape meaning
By following this structure, your diagram will accurately reflect the project’s architecture, clarify component responsibilities, and make data flows and dependencies explicit.