README.md

metadata

title: Investment Portfolio Tracker API
emoji: 📈
colorFrom: green
colorTo: blue
sdk: gradio
sdk_version: 5.46.1
app_file: app.py
pinned: false
license: mit

Investment Portfolio Tracker - Backend API

A FastAPI backend service for managing investment portfolios with Supabase database integration.

Features

• 🔐 User Authentication - JWT-based auth with Supabase
• 💰 Investment Management - CRUD operations for stocks and crypto
• 📊 Portfolio Analytics - Summary calculations and performance metrics
• 🌐 Live Market Data - Real-time prices from Yahoo Finance and CoinGecko
• 🛡️ Secure - User data isolation and input validation

API Endpoints

Authentication

• POST /auth/signup - Create new user account
• POST /auth/signin - User login
• POST /auth/signout - User logout

Investments

• GET /investments/ - Get user's investments
• POST /investments/ - Add new investment
• PUT /investments/{id} - Update investment
• DELETE /investments/{id} - Delete investment

Analytics

• GET /summary/ - Portfolio summary (total value, P&L)

Market Data

• GET /price/stock/{ticker} - Get stock price
• GET /price/crypto/{symbol} - Get crypto price

Live Demo

🔗 API Documentation: [Your HF Space URL]/docs

Tech Stack

• FastAPI - Modern Python web framework
• Supabase - Database and authentication
• Pydantic - Data validation
• yfinance - Stock market data
• CoinGecko API - Cryptocurrency data

Environment Variables

Set these in your Hugging Face Space secrets:

SUPABASE_URL=your_supabase_url
SUPABASE_KEY=your_supabase_anon_key

Usage

import requests

# Sign up
response = requests.post(f"{API_URL}/auth/signup", json={
    "email": "user@example.com",
    "password": "password123"
})
token = response.json()["access_token"]

# Add investment
headers = {"Authorization": f"Bearer {token}"}
requests.post(f"{API_URL}/investments/", json={
    "asset_type": "Stock",
    "ticker": "AAPL",
    "quantity": 10,
    "buy_price": 150.50,
    "buy_date": "2024-01-15"
}, headers=headers)