MongoDB data masking — Python examples

This repository contains the code samples for the How to implement data masking in MongoDB tutorial. It covers four data masking techniques:

• view-based masking
• aggregation pipeline masking
• static data masking
• tokenization

The techniques are implemented in Python using a MongoDB Atlas free tier cluster.

Each technique has its own Python file. Before you run any file, replace the <USERNAME>, <PASSWORD>, and <HOST> placeholders in the connection string with your Atlas credentials and cluster hostname.

Run the following command to clone the repository to your machine:

git clone https://github.com/<your-username>/mongodb-masking.git

Navigate into the project folder:

cd mongodb-masking

Create and activate a virtual environment:

python -m venv venv
source venv/bin/activate

On Windows, activate the virtual environment with:

venv\Scripts\activate

Install the required packages:

python -m pip install pymongo faker

In each file, replace <USERNAME>, <PASSWORD>, and <HOST> with your Atlas credentials and cluster hostname. You can find your connection string in the Atlas UI under Database > Connect > Drivers.

Each file demonstrates one masking technique. Run them individually with the following commands:

python view_masking.py

python aggregation_masking.py

python static_masking.py

python tokenization.py

Refer to the tutorial for a full explanation of what each script does and when to use each technique.