Hackstack Portal 🚀

A modern Learning Management System (LMS) built by the Student Web Committee for hosting educational modules, quizzes, progress tracking, and leaderboards.

📋 Table of Contents

• Tech Stack
• Project Structure
• Getting Started
• Development
• API Documentation
• Contributing
• Troubleshooting

---

🛠️ Tech Stack

Backend

• Runtime: Node.js
• Framework: Express.js
• Database: MongoDB (Cloud: MongoDB Atlas)
• Authentication: GitHub OAuth 2.0 + JWT
• Package Manager: npm

Frontend

• Framework: React 19
• Router: React Router DOM v7
• Build Tool: Vite
• Styling: Tailwind CSS
• Animations: Framer Motion
• Package Manager: npm

---

📁 Project Structure

Hackstack-Portal/
├── backend/
│   ├── config/
│   │   └── db.js                 # Database connection config
│   ├── controllers/              # Business logic
│   │   ├── authController.js
│   │   ├── moduleController.js
│   │   ├── userController.js
│   │   ├── progressController.js
│   │   └── quizController.js
│   ├── middleware/               # Express middleware
│   │   ├── authMiddleware.js     # JWT verification
│   │   └── adminMiddleware.js    # Admin role check
│   ├── models/                   # MongoDB schemas
│   │   ├── User.js
│   │   ├── Module.js
│   │   ├── Quiz.js
│   │   └── Progress.js
│   ├── routes/                   # API endpoints
│   │   ├── authRoutes.js
│   │   ├── moduleRoutes.js
│   │   ├── userRoutes.js
│   │   ├── progressRoutes.js
│   │   ├── quizRoutes.js
│   │   └── adminRoutes.js
│   ├── .env.example              # Environment template
│   ├── package.json
│   └── server.js                 # Express server entry point
│
├── frontend/
│   ├── src/
│   │   ├── assets/               # Images, icons, etc.
│   │   ├── context/
│   │   │   └── AuthContext.jsx   # Global auth state
│   │   ├── pages/                # Page components
│   │   │   ├── Login.jsx
│   │   │   └── AuthCallback.jsx
│   │   ├── services/
│   │   │   └── authService.js    # API client for auth
│   │   ├── App.jsx               # Main app + routing
│   │   ├── main.jsx              # React entry point
│   │   └── index.css
│   ├── public/                   # Static assets
│   ├── .env.example              # Environment template
│   ├── vite.config.js
│   ├── package.json
│   └── index.html
│
├── .gitignore
├── README.md                     # This file
└── CODE_REVIEW_REPORT.md         # Detailed code review

---

🚀 Getting Started

Prerequisites

• Node.js (v18 or higher)
• npm (v8 or higher)
• MongoDB Account (MongoDB Atlas recommended - free tier available)
• GitHub OAuth App (for authentication)

Step 1: Clone the Repository

git clone <repository-url>
cd Hackstack-Portal

Step 2: Set Up GitHub OAuth

1. Go to GitHub Settings → Developer settings → OAuth Apps
2. Click "New OAuth App"
3. Fill in the form:
   • Application name: Hackstack Portal
   • Homepage URL: http://localhost:5173
   • Authorization callback URL: http://localhost:5000/api/auth/github/callback
4. Copy your Client ID and Client Secret

Step 3: Set Up MongoDB

1. Go to MongoDB Atlas
2. Create a free account and cluster
3. Create a database user with a strong password
4. Get your connection URI (looks like: mongodb+srv://username:password@cluster.mongodb.net/hackstack)

Step 4: Backend Setup

cd backend

# Install dependencies
npm install

# Create .env file
cp .env.example .env

# Edit .env with your credentials:
# - MONGO_URI: Your MongoDB connection string
# - JWT_SECRET: Generate a random secret (e.g., openssl rand -hex 32)
# - GITHUB_CLIENT_ID: Your GitHub OAuth Client ID
# - GITHUB_CLIENT_SECRET: Your GitHub OAuth Client Secret
# - FRONTEND_URL: http://localhost:5173 (for development)

# Start the server
npm run dev

Server runs on http://localhost:5000

Step 5: Frontend Setup

cd ../frontend

# Install dependencies
npm install

# Create .env file
cp .env.example .env

# Verify VITE_API_URL=http://localhost:5000/api

# Start the development server
npm run dev

Frontend runs on http://localhost:5173

Step 6: Test Authentication

1. Navigate to http://localhost:5173/login
2. Click "Continue with GitHub"
3. You should be redirected to login and then to the dashboard
4. ✅ If you see the dashboard, authentication is working!

---

💻 Development

Backend Commands

cd backend

# Start development server (with hot reload via nodemon)
npm run dev

# Run linting (if configured)
npm run lint

# Note: Test suite not yet implemented

Frontend Commands

cd frontend

# Start development server
npm run dev

# Build for production
npm run build

# Preview production build locally
npm run preview

# Run linting
npm run lint

Key Environment Variables

Backend (.env):

MONGO_URI=mongodb+srv://username:password@cluster.mongodb.net/hackstack
JWT_SECRET=your_random_secret_here
GITHUB_CLIENT_ID=your_client_id
GITHUB_CLIENT_SECRET=your_client_secret
FRONTEND_URL=http://localhost:5173
PORT=5000

Frontend (.env):

VITE_API_URL=http://localhost:5000/api

---

📚 API Documentation

Authentication Endpoints

Method	Endpoint	Description	Auth Required
POST	/api/auth/admin/login	Admin username/password login, returns JWT	❌
GET	/api/auth/github	Redirect to GitHub OAuth	❌
GET	/api/auth/github/callback	OAuth callback handler	❌
GET	/api/auth/me	Get current user	✅

Module Endpoints

Method	Endpoint	Description	Auth Required
GET	/api/modules	List all modules	❌
GET	/api/modules/:slug	Get module by slug	❌
POST	/api/modules/:id/register	Register for module	✅
POST	/api/modules	Create module	✅ Admin
PUT	/api/modules/:id	Update module	✅ Admin
DELETE	/api/modules/:id	Delete module	✅ Admin

Quiz Endpoints

Method	Endpoint	Description	Auth Required
GET	/api/quizzes	List all quizzes	❌
GET	/api/quizzes/:id	Get quiz by ID	❌
POST	/api/quizzes/:id/submit	Submit quiz answers	✅
POST	/api/quizzes	Create quiz	✅ Admin
PATCH	/api/quizzes/:id	Update quiz	✅ Admin
DELETE	/api/quizzes/:id	Delete quiz	✅ Admin

Progress Endpoints

Method	Endpoint	Description	Auth Required
GET	/api/progress	List progress records	❌
GET	/api/progress/:id	Get progress record	❌
PATCH	/api/progress/:id	Update progress	✅

User Endpoints

Method	Endpoint	Description	Auth Required
GET	/api/users	List all users	❌
GET	/api/users/:id	Get user by ID	❌
POST	/api/users	Create user	❌
PATCH	/api/users/:id	Update user	❌
DELETE	/api/users/:id	Delete user	❌

Admin Endpoints

All admin endpoints require auth + admin middleware:

• GET /api/admin/modules - List modules
• POST /api/admin/modules - Create module
• PUT /api/admin/modules/:id - Update module
• DELETE /api/admin/modules/:id - Delete module
• Similar endpoints for /admin/quizzes, /admin/progress, /admin/users

---

Before Submitting a Pull Request

1. Create a feature branch:

   git checkout -b feature/your-feature-name

2. Make your changes and test thoroughly

3. Lint your code:

   # Frontend
   cd frontend && npm run lint
   
   # Backend (if linting is configured)
   cd backend && npm run lint

4. Commit with clear messages:

   git add .
   git commit -m "feat: describe your changes"

5. Push your branch:

   git push origin feature/your-feature-name

6. Create a Pull Request on GitHub with a clear description

Code Style Guidelines

• JavaScript: Use ES6+ syntax
• React: Use functional components with hooks
• Naming: Use camelCase for variables/functions, PascalCase for components
• Imports: Organize imports (React, third-party, local)
• Comments: Add comments for complex logic

---

🐛 Troubleshooting

"Cannot find module" errors

# Clear node_modules and reinstall
rm -rf node_modules package-lock.json
npm install

Port already in use

# Backend (Port 5000)
lsof -i :5000
kill -9 <PID>

# Frontend (Port 5173)
lsof -i :5173
kill -9 <PID>

MongoDB connection failed

• Verify connection URI in .env
• Check MongoDB Atlas IP whitelist (add your IP or 0.0.0.0)
• Ensure database user has correct credentials
• Test connection: mongo "your-connection-string"

GitHub OAuth not working

• Verify Client ID and Client Secret in .env
• Check OAuth redirect URL matches http://localhost:5000/api/auth/github/callback
• Ensure FRONTEND_URL is correctly set

CORS errors

• Verify FRONTEND_URL in backend .env matches your frontend URL
• Check that CORS middleware in server.js allows your frontend domain

Vite not loading styles

# Rebuild Vite cache
rm -rf frontend/node_modules/.vite
npm run dev

---

🎯 Roadmap

• Complete Dashboard component
• Module detail pages with content rendering
• Quiz taking interface
• Progress tracking dashboard
• Leaderboard implementation
• Admin panel UI
• User profile pages
• Notification system
• Test suite (Jest + Supertest for backend, Vitest for frontend)
• API documentation (Swagger/OpenAPI)
• Production deployment guide