Financial Ledger SaaS

A comprehensive financial management platform for individuals and businesses to track transactions, manage savings goals, handle loans, split bills, and more.

🎯 Project Overview

This is a full-stack SaaS application built with:

• Backend: Node.js, Express, TypeScript, MongoDB, Redis
• Frontend: React, TypeScript, Vite, TailwindCSS (in development)
• Features: Transaction tracking, savings automation, loan management, bill splitting, crowdfunding, analytics, and more

📊 Current Status

Backend: ~85% Complete ✅

• ✅ Authentication & Authorization (JWT, 2FA)
• ✅ User Management
• ✅ Transaction Ledger with Receipt Upload
• ✅ Category Management (18 default categories)
• ✅ Savings Goals with Auto-save Rules
• ✅ Loan Management with Interest Calculations
• ✅ Bill Sharing & Group Ledger
• ✅ Analytics & Predictions with Caching
• ✅ Payment Gateway Base (bKash, Nagad, SSLCommerz)
• ✅ Crowdfunding Platform
• ✅ CSV/PDF Export
• ✅ Admin Dashboard
• ✅ Activity Logging & Security
• ⏳ Email/SMS Notifications (partial)

Frontend: 0% Complete ⏳

• All UI components need to be built
• Design system to be implemented
• Responsive layouts to be created

🚀 Quick Start

Prerequisites

• Node.js v18+
• MongoDB v6+
• Redis v7+
• Cloudinary account

Installation

# Clone the repository
git clone <repository-url>
cd financial-ledger-saas

# Backend setup
cd backend
npm install
cp .env.example .env
# Edit .env with your configuration
npm run dev

# Frontend setup (coming soon)
cd frontend
npm install
npm run dev

For detailed setup instructions, see QUICK_START.md

📚 Documentation

• Backend README - Complete API documentation
• Quick Start Guide - Get up and running quickly
• Implementation Summary - Detailed progress report
• Requirements - Full requirements specification
• Design Document - System architecture
• Tasks - Implementation checklist

✨ Key Features

For Users

• 💰 Transaction Management: Track income and expenses with receipt uploads
• 🎯 Savings Goals: Set goals with automated savings rules
• 💳 Loan Tracking: Manage borrowed/lent money with interest calculations
• 👥 Bill Splitting: Share expenses with groups and track settlements
• 📊 Analytics: Visualize spending patterns and get predictions
• 🌍 Multi-language: Support for English and Bangla
• 💱 Multi-currency: Support for BDT and other currencies
• 📱 Payment Integration: bKash, Nagad, SSLCommerz support
• 🎗️ Crowdfunding: Create and contribute to campaigns

For Admins

• 👤 User Management: View, manage, and moderate users
• 📈 Platform Analytics: Track growth and usage metrics
• 🛡️ Moderation Tools: Review and approve campaigns
• 📋 Activity Logs: Audit trail of all actions
• 🔒 Security Controls: Manage roles and permissions

🏗️ Architecture

financial-ledger-saas/
├── backend/                 # Node.js + Express + TypeScript
│   ├── src/
│   │   ├── config/         # Configuration files
│   │   ├── controllers/    # Request handlers
│   │   ├── middleware/     # Express middleware
│   │   ├── models/         # Mongoose schemas
│   │   ├── services/       # Business logic
│   │   ├── routes/         # API routes
│   │   ├── jobs/           # Cron jobs
│   │   └── utils/          # Utilities
│   └── README.md
├── frontend/               # React + TypeScript + Vite (in development)
│   └── src/
├── .kiro/                  # Project specifications
│   └── specs/
│       └── financial-ledger-saas/
│           ├── requirements.md
│           ├── design.md
│           └── tasks.md
└── README.md

🔐 Security Features

• JWT authentication with refresh tokens
• Two-factor authentication (TOTP)
• Password hashing with bcrypt
• Rate limiting (100 requests per 15 minutes)
• Helmet security headers
• CORS configuration
• Input sanitization
• Activity logging with 90-day retention
• Role-based access control

📊 API Endpoints

80+ endpoints covering:

• Authentication & User Management
• Transactions & Categories
• Savings & Loans
• Groups & Bill Splitting
• Analytics & Predictions
• Payments & Campaigns
• Reports & Export
• Admin Operations

See Backend README for complete API documentation.

🧪 Testing

cd backend
npm test                    # Run all tests
npm run test:watch         # Watch mode
npm test -- --coverage     # With coverage

🛠️ Tech Stack

Backend

• Runtime: Node.js 18+
• Framework: Express.js
• Language: TypeScript
• Database: MongoDB with Mongoose
• Cache: Redis
• Storage: Cloudinary
• Authentication: JWT + bcrypt
• 2FA: Speakeasy + QRCode
• Scheduling: node-cron
• Logging: Winston
• PDF: PDFKit
• Security: Helmet, express-rate-limit

Frontend (Planned)

• Framework: React 18
• Language: TypeScript
• Build Tool: Vite
• Styling: TailwindCSS
• State Management: React Context / Redux
• Charts: Recharts / Chart.js
• Forms: React Hook Form
• HTTP Client: Axios

📅 Roadmap

Phase 1: Backend (Current) - 85% Complete

• Core API development
• Authentication & security
• All major features
• Payment gateway integrations
• Email/SMS notifications
• Comprehensive testing

Phase 2: Frontend - Not Started

• UI/UX design system
• Authentication pages
• Dashboard & analytics
• Transaction management
• All feature pages
• Responsive design
• Accessibility

Phase 3: Testing & Optimization

• Unit tests
• Integration tests
• E2E tests
• Performance optimization
• Security audit

Phase 4: Deployment

• CI/CD pipeline
• Production deployment
• Monitoring & logging
• Documentation
• Launch

🤝 Contributing

This is a personal project, but suggestions and feedback are welcome!

📄 License

MIT License - see LICENSE file for details

---

Note: This project is under active development. The backend is production-ready, but the frontend is still in planning phase.