English Therapy Platform

This project is the backend (server side) of an online English learning and testing platform. It’s designed to handle everything behind the scenes: user accounts, test delivery, result tracking, and certificate generation.

I built it to:

1. Test and explore modern backend architecture with NestJS and Fastify.
2. Create a solid, production-ready base for a real platform.
3. Show how to structure a clean, maintainable project for long-term growth.

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📝 What’s Done vs. What’s Left

• Backend: ~90% complete.

  • Fully functional authentication
  • Exam question management
  • Progress calculation and result storage
  • Admin panel API for managing users and certificates
  • Email service for OTP verification and notifications

• Frontend: ~40% complete.

  • Already has login, registration, and session handling
  • Core structure in place but missing most of the UI for exams and admin features

If someone picks this up, they could connect the existing backend to a finished frontend without starting from scratch.

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🔍 Why This Project Stands Out

If you’re hiring, here’s what this project shows about my skills:

1. Planning and Architecture

   • I didn’t just write code — I organized it into logical modules so features are easy to add or change later.
   • Each feature (auth, exams, certificates) is isolated in its own folder.

2. Security Awareness

   • Role-based access (admin, user)
   • Token-based authentication (JWT)
   • Email verification with OTP

3. Scalability

   • Built on NestJS + Fastify for better performance under heavy load.
   • Follows a modular structure so new features don’t break existing ones.

4. Real-World Features

   • Email integration
   • Result tracking & certificates
   • Admin tools to manage platform content

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🛠 Tech Stack

Even without deep technical details, here’s the big picture:

• NestJS + Fastify — The main framework and web server
• MongoDB + Mongoose — Database to store users, exams, and results
• JWT Authentication — Secure login sessions
• Nodemailer — Sends OTPs and notifications by email
• Helmet & CORS — Basic security protections

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📂 How It’s Organized

The backend is organized like this:

api-server/
├── auth-guard/        # Security checks for routes
├── decorators/        # Helpers for cleaner code
├── libs/              # Core tools (email, DB connection, env configs)
├── modules/           # Main features
│   ├── authentication
│   ├── tests
│   ├── certificates
│   ├── user
│   └── admin-*
├── schemas/           # Database models
└── main.ts            # App starting point

This makes it easy for another developer to find exactly where a feature lives.

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🚀 How to Run

For a developer picking this up:

# Install dependencies
npm install

# Start in development mode
npm run start:dev

The server will start and connect to MongoDB. API documentation is auto-generated by NestJS Swagger (available at /docs when running).

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🤝 Contributing or Taking Over

If you want to:

• Finish the frontend
• Expand backend features
• Deploy to production

You can fork the repo, make changes, and submit a pull request. I’ve kept the structure clean so onboarding is fast.