User Management Dashboard (Next.js 15 + React Flow)

A high-performance user management interface built with Next.js 15 (App Router), TypeScript, and Tailwind CSS.

This project demonstrates modern frontend architecture, clean separation of concerns, and performance-focused UI patterns.

🚀 How to Run

1. Install dependencies

npm install
# or
pnpm install

npm run dev

Open:

http://localhost:3000

🏗️ Architecture Decisions

1. Server Components & Data Fetching

• The initial data fetch happens in app/page.tsx (Server Component).
• Improves First Contentful Paint (FCP) and SEO.
• Data is passed down as props to avoid client-side fetch waterfalls.

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2. Custom Hook (useUsers)

• All business logic (filtering, searching, updating state) is extracted into a custom hook.
• UI components remain presentational, while the hook handles complexity.
• Improves maintainability and testability.

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3. Performance Optimizations

• useMemo: Prevents expensive recalculations during filtering.
• React Hook Form: Minimizes re-renders compared to controlled inputs.
• Debounce: Reduces filtering frequency for search input.

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4. Forms & Validation

• Zod: Strict schema validation (email format, required fields).
• React Hook Form: High-performance form handling with uncontrolled inputs.

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🛠 Tech Stack

• Framework: Next.js 15 (App Router)
• Language: TypeScript
• Styling: Tailwind CSS
• State Management: React Hooks (useState, useMemo)
• Forms: React Hook Form + Zod

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🔮 Future Improvements

• Virtualization: Use react-window for large datasets (1000+ items).
• API Integration: Replace local state with real PUT/PATCH backend requests.
• Accessibility: Improve ARIA labels and keyboard navigation.

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📌 Notes

This project is built as a portfolio-ready example of:

• Modern React architecture
• Clean code practices
• Performance optimization
• Scalable UI patterns