Building GDPR-Compliant APIs: Automated PII Detection with Python

Handling user data without a solid PII detection layer is a liability. With the EU AI Act enforcement deadlines in full swing and GDPR fines hitting new records, developers can no longer treat privacy as an afterthought. In this tutorial, we'll build a practical PII detection middleware for FastAPI that automatically scans request and response payloads — and integrate a real-world API to do the heavy lifting. The Problem: Data Leaks at the API Layer Most PII leaks don't happen because of sophist