FinanceTracker

Live demo: https://financetracker-9wbe.onrender.com/

FinanceTracker is a full-stack personal finance web app that lets users register/login, add income/expense transactions, set monthly category budgets, and view basic spending/budget analytics.

Features

• User authentication (register + login) with Argon2 password hashing
• Transactions: add & view income/expense entries (amount, category, date, description)
• Budgets: upsert monthly budgets by category
• Analytics: budget progress (spent vs remaining) computed server-side via SQL aggregation
• Deployed: frontend + backend hosted on Render, database on Supabase Postgres

Tech Stack

Backend

• Rust, Axum (REST API)
• SQLx (typed queries + migrations)
• PostgreSQL (Supabase)
• Argon2 (password hashing)
• Serde, Chrono, UUID, Decimal

Frontend

• Vite + (React) frontend
• Fetch-based API client
• Environment-based API base URL

Deployment

• Render (web service + static site)
• Supabase Postgres (with connection pooler/TLS)

API Routes (summary)

• POST /users/register
• POST /users/login
• POST /transactions
• GET /transactions/:user_id
• POST /budgets (upsert)
• GET /budgets/:user_id
• GET /budgets/:user_id/progress
• GET /test (development)

Local Development

1) Backend

Create a .env file (or export env vars) with:

• DATABASE_URL=postgresql://... (Supabase connection string; include ?sslmode=require if needed)
• PORT=3000 (optional; defaults to 3000)

Run migrations:

cargo sqlx migrate run --source backend/migrations