Expense Tracker API

A RESTful Expense Tracker API built using FastAPI.

This project allows users to securely manage their daily expenses with JWT Authentication, advanced filtering, searching, pagination, receipt uploads, dashboard analytics, and CSV export.

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Features

• User Registration
• JWT Authentication
• Login
• Expense CRUD
• Pagination
• Search
• Filtering
• Sorting
• Dashboard Analytics
• Receipt Upload
• CSV Export
• Category Management
• Swagger API Documentation

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Tech Stack

• Python 3
• FastAPI
• SQLAlchemy
• Pydantic
• SQLite
• JWT Authentication
• Passlib
• Uvicorn

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Project Structure

app/
│
├── database/
├── models/
├── repositories/
├── routers/
├── schemas/
├── services/
└── utils/

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Installation

Clone the repository

git clone <repository_url>

Create virtual environment

python -m venv venv

Activate virtual environment

Windows

venv\Scripts\activate

Install dependencies

pip install -r requirements.txt

Run the application

uvicorn app.main:app --reload

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API Documentation

Swagger UI

http://127.0.0.1:8000/docs

ReDoc

http://127.0.0.1:8000/redoc

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Main Features

Authentication

• Register
• Login
• JWT Tokens

Expenses

• Create Expense
• Update Expense
• Delete Expense
• Search
• Pagination
• Filtering
• Sorting

Dashboard

• Total Expenses
• Today's Expenses
• Monthly Expenses
• Highest Expense
• Category Summary

Receipt Upload

• JPG/JPEG/PNG Support
• 5 MB Validation
• MIME Validation
• Automatic Receipt Replacement

Export

• CSV Export

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Future Improvements

• PostgreSQL Support
• Docker
• Alembic Migrations
• Unit Tests
• Background Tasks
• Redis Caching
• CI/CD

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Author

Mohamed Azarudeen S