detect sub domain name in lambda function , aws Route 53 -> Cloudfront -> Lambda function

I am looking for a freelancer who can help me with a project to detect subdomain names in a Lambda function using AWS Route 53, Cloudfront, and Lambda function.

Purpose of Lambda function:
- The Lambda function should be able to process data from subdomains.

Programming language:
- The Lambda function should be written in Python.

Data processing requirements:
- There are no specific requirements or constraints for the data processing.