USSD Digital Marketplace

A Python-based USSD-like digital marketplace simulation where Farmers and Buyers can register, log in, and manage their profiles. Data is stored in lightweight JSON files (database/farmer.json, database/buyer.json) for persistence.

Features

1. Farmer Registration and Login

• Store farm size and primary crop details
• Profile update support

2. Buyer Registration & Login

• Save product of interest

• Profile update support

3. Secure Login using phone number + 4-digit PIN

4. JSON Database

• Farmers: database/farmer.json

• Buyers: database/buyer.json

5. USSD-like Console Menus

• Main menu

• Registration menu

• Login & profile management

Project Structure

├── main.py                # Entry point (menus & navigation)
├── models/
│   ├── user.py            # Base User class
│   ├── farmer.py          # Farmer model & methods
│   ├── buyer.py           # Buyer model & methods
├── database/
│   ├── farmer.json        # Farmer data storage
│   ├── buyer.json         # Buyer data storage
└── README.md              # Project documentation