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by Arslan Shakil
Full-stack TypeScript expense tracker with JWT authentication, real-time expense management, and analytics dashboards. Features a React frontend with Tailwind CSS and Recharts visualizations, paired with a Node.js backend API serving expense CRUD operations, monthly summaries, and category breakdowns. Built for developers who need a complete, production-ready expense tracking system with authentication and data analytics. Licensed under Tetrees License.
Real-Time Expense Tracker is a full-stack TypeScript application for tracking and analyzing personal expenses. It features JWT-based authentication, real-time expense management, and analytics dashboards with monthly summaries and category breakdowns. The application consists of a React frontend with Vite and a Node.js backend API.
Frontend:
Backend:
# Install dependencies
npm install
# Build
npm run build
# Start production server
npm start
# Development with hot-reload
npm run dev
Environment Variables (.env):
PORT=9088
JWT_SECRET=your-super-secret-key
NODE_ENV=development
# Install dependencies
npm install
# Development server
npm run dev
# Build for production
npm run build
# Preview production build
npm run preview
# Type checking
npm typecheck
# Linting
npm run lint
npm run lint:fix
All authenticated endpoints require:
Authorization: Bearer <token>
POST /api/auth/register
{ email: string, password: string }{ token: string, user: { id: string, email: string } }POST /api/auth/login
{ email: string, password: string }{ token: string, user: { id: string, email: string } }GET /api/expenses
category, start_date, end_dateExpense[]POST /api/expenses
{ amount: number, category: string, date: string, description: string }ExpensePUT /api/expenses/:id
ExpenseDELETE /api/expenses/:id
204 No ContentGET /api/analytics/monthly-summary
MonthlySummary[]GET /api/analytics/category-breakdown
CategoryBreakdown[]GET /api/health
{ status: "ok", timestamp: string }Tetrees License
Spin up an isolated sandbox and run it server-side — no local setup.
The sandbox audition completed and the detected runnable path passed.
This Express backend / api completed archive review with strong static results. Structure, dependency manifests, documentation, functional source, and common risk patterns were checked by the Tetrees verification pipeline; runtime phases are stated separately. Final verified scores after isolated runtime evidence: overall 8.8 and security 9.
Deterministic AVCP artifact review
Pipeline avcp-2026-08-04.1 · SHA-256 65b4d10497d08f8e…
This version-scoped review deterministically inspects the submitted archive for structure, dependencies, documentation, functional source, and common malicious or high-risk signals. Build and test phases are reported as passed only after an isolated sandbox audition. It is not a guarantee of perfect security.
Reviewed Aug 7, 2026
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