Expense Tracker

A full-stack expense tracking application with AI-powered chatbot support.

Features

• User authentication (login/register)
• Create, view, update, and delete transactions
• Track income and expenses
• Filter income and expenses
• Categorize transactions with custom categories
• AI-powered chatbot for expense queries (feature-flagged)
• Transaction history and management

Tech Stack

Frontend

• React
• React Router
• Axios
• React Markdown

Backend

• Node.js
• Express
• MongoDB (Mongoose)
• JWT authentication
• Google Gemini AI

Feature Flag Service

• Flask
• PostgreSQL (SQLAlchemy)

Docker Integration

• Docker Compose orchestration
• Containerized frontend, backend, feature-flag service, MongoDB, and PostgreSQL
• Network isolation and volume persistence