Platzi Course: Design Patterns and SOLID Principles in a Payment Processor

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This project is a practical example of using design patterns and SOLID principles in Python, integrating the Stripe API. The goal is to iteratively refactor the code, applying best practices while focusing on clean and maintainable design.

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🎯 Project Goals

• Demonstrate how to implement design patterns (Singleton, Factory, Strategy, etc.).
• Apply SOLID principles (Single Responsibility, Open/Closed, Liskov Substitution, etc.).
• Integrate a real API, like Stripe, to illustrate a practical use case.
• Gradually improve the code design through refactoring.

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🚀 Technologies Used

• Python 3.10+
• Stripe API: For payment processing.
• Virtual Environments: venv for dependency isolation.
• Docker: More flexible

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🛠️ Setup and Installation

1. Clone this repository

git clone git@github.com:guduchango/python-design-patterns-and-solid-principle.git
cd python-design-patterns-and-solid-principle.git

2. Set up the virtual environment

python -m venv venv
source venv/bin/activate   # Linux/Mac
venv\Scripts\activate  

3. Install dependencies

pip install -r app/requirements.txt

4. Configure the .env file

• Create a new account stripe https://stripe.com/
• Go to https://dashboard.stripe.com/test/apikeys
• Read transacctions on https://dashboard.stripe.com/test/payments

5. run

python3.11 app/main.py