Welcome to your guide on creating an Online Banking System using the Django Web Framework. This setup will allow you to handle various banking operations seamlessly. Let’s dive into the features, prerequisites, and installation steps.

Features of the Online Banking System

• Create Bank Account
• Deposit and Withdraw Money
• Support for Different Bank Account Types (Current, Savings, etc.)
• Interest calculation based on account type
• Transaction reports with date range filters
• View balance after each transaction in the report
• Monthly interest calculation using Celery scheduled tasks
• Efficient interest calculation and balance updates
• Minimum and Maximum transaction amount restrictions
• Modern UI with Tailwind CSS

Prerequisites

Before you start, ensure that you’ve installed the following on your development machine:

• Python >= 3.7
• Redis Server
• Git
• pip
• Virtualenv (virtualenvwrapper is recommended)

Requirements

You will need the following Python packages for the project:

• celery==4.4.7
• Django==3.2
• django-celery-beat==2.0.0
• python-dateutil==2.8.1
• redis==3.5.3

Installing Redis Server

To get started with Redis, follow the quick start guide available at Redis Quick Start. You can run the Redis server using the command:

bash
redis-server

Project Installation

To set up your local development environment, follow these steps:

1. Create a virtual environment for your project:

bash
virtualenv venv            # create a virtualenv
source venv/bin/activate   # activate the virtualenv

2. Alternatively, using virtualenvwrapper:

bash
mkvirtualenv -p python3 project_name   # create and activate environment
workon project_name   # reactivate the existing environment

3. Clone the GitHub project:

bash
git clone git@github.com:saadmk11/banking-system.git
cd banking-system

4. Install the development dependencies:

bash
pip install -r requirements.txt

5. Migrate the database:

bash
python manage.py migrate

6. Run the web application locally:

bash
python manage.py runserver # 127.0.0.1:8000

7. Create a superuser:

bash
python manage.py createsuperuser

8. Run Celery in a different terminal window (with the virtual environment activated):

bash
celery -A banking_system worker -l info
celery -A banking_system beat -l info

Understanding the Code: An Analogy

Think of your Online Banking System as a well-organized library. Each section of the library (or feature) serves a specific purpose, such as:

• The Create Bank Account feature is like the library’s registration desk where new members are enrolled.
• Deposit and Withdraw Money functions resemble borrowing and returning books, letting users take out or add to their account.
• The Account Type Support feature is akin to different sections in the library—fiction, non-fiction, or reference—each serving different needs.
• Interest calculation is like the late fees incurred for overdue books—the longer you keep it (or the more you save), the more you gain (or owe).

Each part works together to ensure a smooth experience for the users, just like a well-organized library enhances the resourcefulness of its patrons.

Troubleshooting

If you encounter any issues during setup or while running the application, here are some troubleshooting ideas:

• Ensure all dependencies are correctly installed and versions match those specified in the requirements.
• If the database migrations fail, check the configuration settings in settings.py.
• For running into issues with Celery tasks, confirm Redis is running in a different terminal.

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