Like Expense

✅ Project Overview

This is a full-stack Expense Tracker app with:

• Backend (API): Node.js + Express + MongoDB (Mongoose)
• Frontend: React (Vite) SPA
• Core Functionality: user auth, income/expense CRUD, dashboard analytics, and Excel export

It’s structured as two separate apps under TrackExpense:

• backend/ → API server (auth + expense/income management + analytics)
• frontend/ → React UI (login/signup, dashboard, add/edit transactions, profile)

🧱 What the App Does (Features)

✅ Authentication

• Register + Login (email + password)
• JWT token-based auth (stored in localStorage or sessionStorage)
• Protected routes require auth token

💸 Expense / Income Tracking

• Add / update / delete expenses
• Add / update / delete income
• Each record includes: description, amount, category, date
• Records are linked to a specific user (via userId)

📊 Dashboard & Analytics

• Monthly income/expense summary
• • Savings calculation
  • Recent transactions list
  • Expense category breakdown (for charts)
  • Timeframe filtering (monthly/weekly/etc.)

  📄 Export

  • Export income or expense data to Excel (.xlsx) from the server

• 🗂️ Backend (API) Structure

  Main API routes

  All API routes are mounted under /api/*:

  • /api/user → user auth & profile
  • /api/income → income CRUD + overview + Excel export
  • /api/expense → expense CRUD + overview + Excel export
  • /api/dashboard → dashboard summary

  Key Backend Tech

  • Express for routing
  • MongoDB + Mongoose for persistence
  • JWT for auth (middleware/auth.js)
  • bcryptjs for password hashing
  • xlsx to generate Excel spreadsheets

• 🧩 Frontend (React) Structure

  The UI is under frontend/src/ with pages like:

  • Dashboard.jsx — main analytics page (charts + summary)
  • Income.jsx / Expense.jsx — transaction management
  • Profile.jsx — update profile, change password
  • Login.jsx / Signup.jsx — authentication
  • Layout.jsx — common layout / nav + sidebar

  It stores auth tokens in local/session storage and keeps transaction state in local storage for faster UI updates.