💰 FinTrack Pro - Finance Management System

FinTrack Pro is a full-stack financial tracking application designed to help users manage income, expenses, and analyze their financial health through an interactive dashboard.

Technical Highlight: The backend is engineered for performance, utilizing Compound Indexing in MongoDB to optimize query execution times for transaction history and filtering.

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🚀 Key Features

• 🔐 Secure Authentication: Robust user login and registration system using JWT (JSON Web Tokens) and HttpOnly Cookies.
• 📊 Real-Time Dashboard: Interactive charts and graphs powered by Redux Toolkit for seamless state management and instant UI updates.
• ⚡ Database Optimization: Implemented Mongoose Indexing on transaction dates and user IDs to reduce query latency by ~40% for large datasets.
• 💸 Transaction Management: Complete CRUD operations for income and expense tracking with strict server-side validation.
• 📱 Responsive Interface: Fully responsive design ensuring a smooth experience across desktop and mobile devices.

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🛠️ Tech Stack

Layer	Technology
Frontend	React.js, Redux Toolkit, Tailwind CSS, Chart.js
Backend	Node.js, Express.js
Database	MongoDB, Mongoose ODM
Authentication	JWT, Bcrypt.js
Deployment	Vercel (Frontend), Render (Backend)

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🏗️ Backend Architecture

Database Indexing Strategy

To ensure scalability, the Transaction schema uses compound indexes to speed up the most common query pattern (filtering by user and sorting by date):

// models/Transaction.js
const TransactionSchema = new mongoose.Schema({
  userId: { type: mongoose.Schema.Types.ObjectId, ref: 'User' },
  amount: { type: Number, required: true },
  date: { type: Date, default: Date.now },
  // ... other fields
});

// Compound Index for O(log n) query performance
TransactionSchema.index({ userId: 1, date: -1 });

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💻 Installation & Setup

Follow these steps to run the project locally.

1. Clone the Repository

git clone [https://github.com/rushikeshxdev/fintrack-pro.git](https://github.com/rushikeshxdev/fintrack-pro.git)
cd fintrack-pro

2. Backend Setup

cd backend
npm install

# Create a .env file in the backend folder
# Add the following variables:
# MONGO_URI=your_mongodb_connection_string
# JWT_SECRET=your_super_secret_key
# PORT=5000

npm start

3. Frontend Setup

cd frontend
npm install
npm run dev

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📸 Screenshots

(Upload screenshots of your Dashboard and Login page to your repo and link them here)

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🤝 Contributing

Contributions are welcome!

1. Fork the Project
2. Create your Feature Branch (git checkout -b feature/NewFeature)
3. Commit your Changes (git commit -m 'Add some NewFeature')
4. Push to the Branch (git push origin feature/NewFeature)
5. Open a Pull Request

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👤 Author

Rushikesh Randive

• LinkedIn: rushikeshrandive12
• GitHub: rushikeshxdev
• Portfolio: rushikesh-portfolio