Live Polling System (Assignment)

Structure

• backend/: Express + Socket.IO server (port 4000)
• frontend/: Vite + React app (port 5173)

How to run locally

Backend

cd backend
npm install
node server.js

Frontend

cd frontend
npm install
npm run dev

Open http://localhost:5173

Deployment suggestions

• Backend: Deploy to Render / Heroku / Railway. Ensure PORT env var is set.
• Frontend: Build and host on Netlify / Vercel. Set VITE_SOCKET_URL to the backend URL.

Notes

• In-memory store used for simplicity. For production, use a DB.
• The UI aims to match the provided Figma design layout and behaviour (teacher/student views, 60s timeout, results shown after timeout or when all answered).