Use case

In some of case I would like to custom masking like example Aadhar number or SSN number is 1111-1111-1111 then masking should be done like ****-****-6789 or ****-****-**** or regex pattern.

Solution/User Experience

currently erase, encrypt and decrypt is supported. Similarly can be introduce mask or custom_mask method which accept parameter s like masking_chars
This is just an example to explain how it can worked this can move to prebuild function mask or custom_mask

from aws_lambda_powertools import Logger import re # Initialize logger with custom masking logger = Logger() def mask_sensitive_data(value): """Custom function to mask sensitive data""" return re.sub(r'\d{4}-\d{4}-\d{4}-(\d{4})', '****-****-****-****', value) user_data = { "username": "john_doe", "card_number": "4111-1111-1111-1111" } # Apply custom masking masked_card_number = mask_sensitive_data(user_data["card_number"]) logger.info("Processing payment", extra={"card_number": masked_card_number}) 

Alternative solutions

Acknowledgment

• This feature request meets Powertools for AWS Lambda (Python) Tenets
• Should this be considered in other Powertools for AWS Lambda languages? i.e. Java, TypeScript, and .NET