Loan Processing API

A Django REST Framework-based backend system for managing fintech-style loan requests through REST APIs.

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Overview

This project is a backend-focused fintech prototype built using Django and Django REST Framework.

The system allows:

• Loan creation and tracking
• Loan status management
• REST API handling
• Modular backend architecture

The project was built to strengthen backend engineering and API development skills.

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Features

• RESTful API architecture
• Django ORM integration
• Loan request management
• Loan status handling
• Modular Django app structure
• SQLite database integration

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Tech Stack

• Python
• Django
• Django REST Framework
• SQLite

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Project Structure

loan-processing-api/
│
├── assets/
│
├── loans/
│   ├── models.py
│   ├── serializers.py
│   ├── views.py
│   ├── urls.py
│   └── migrations/
│
├── loan_processing_api/
│   ├── settings.py
│   ├── urls.py
│   └── wsgi.py
│
├── manage.py
├── requirements.txt
└── README.md

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Screenshots

Loan API Example

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Loan List

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Django Admin Panel

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Admin Login

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API Endpoints

Method	Endpoint	Description
GET	/loans/	Fetch all loans
POST	/loans/	Create a new loan
PUT	/loans/{id}/	Update loan details
DELETE	/loans/{id}/	Delete a loan

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Engineering Decisions

• Used Django REST Framework for rapid API development
• Structured APIs modularly using serializers and views
• Designed backend architecture for future authentication and eligibility integration
• Used ORM-based models for maintainable database interaction

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Setup Instructions

Clone the Repository

git clone https://github.com/Ashok-Kumar17/loan_processing_api.git
cd loan_processing_api

Create Virtual Environment

python -m venv venv

Activate Environment

Windows:

venv\\Scripts\\activate

Linux/Mac:

source venv/bin/activate

Install Dependencies

pip install -r requirements.txt

Run Migrations

python manage.py migrate

Start Server

python manage.py runserver

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Learning Outcomes

This project helped in understanding:

• REST API development
• Django backend architecture
• ORM-based database handling
• Serializer-based API responses
• Backend modularization

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Future Improvements

• JWT Authentication
• PostgreSQL integration
• Swagger/OpenAPI documentation
• Docker deployment
• Unit testing
• Loan eligibility engine

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Author

Ashok Kumar Meena

Electrical Engineering, IIT Madras

Interested in Backend Engineering, Embedded Systems, Firmware, and Robotics Software.