HTTP, REST APIs & Databases¶

Every production application speaks HTTP to the outside world, exposes its own REST API, and persists state in a database. This part covers all three from both sides of the wire: consuming external APIs with httpx, building your own services with FastAPI, and querying relational databases safely — including the SQL injection prevention that appears in every security interview.

Lessons in this part¶

• HTTP & Consuming REST APIs
• Building Services with FastAPI
• Databases & SQL with Python