Expense Tracker API

A REST API built with Flask for tracking personal expenses, with JWT authentication and Redis caching.

Live Demo

Base URL: https://expense-tracker-api-production-ad08.up.railway.app

Features

• JWT authentication with access and refresh tokens
• Role-based access control (Admin/User)
• Full CRUD on expenses
• File upload support for receipts
• Redis caching on expense retrieval for faster responses
• PostgreSQL database with SQLAlchemy ORM

Tech Stack

• Python, Flask, Flask-RESTful
• Flask-JWT-Extended
• SQLAlchemy, PostgreSQL
• Redis
• Bcrypt, Werkzeug
• Deployed on Railway

API Endpoints

Method	Endpoint	Description
POST	/register	Create a new user
POST	/login	Get access and refresh tokens
POST	/refresh	Get a new access token
GET	/expenses	Fetch all expenses for the logged-in user
POST	/expenses	Create a new expense
PUT	/expenses/<id>	Update an expense
DELETE	/expenses/<id>	Delete an expense

Setup

1. Clone the repo
2. Install dependencies: pip install -r requirements.txt
3. Create a .env file with your DATABASE_URL and REDIS_URL
4. Run the app: python app.py