Free course · 4 lessons · Beginner
Flask API Fundamentals
Build lightweight Python APIs with Flask routing, request handling, JSON responses, and blueprints.
1. Flask Basics
Start with the smallest useful Flask API.
- Create Your First API — Build a tiny JSON endpoint and understand the app object.
- Routes, Requests, and JSON — Read input from the request and validate it early.
2. Structure and Error Handling
Keep larger Flask APIs maintainable with blueprints and consistent errors.
- Blueprints for API Modules — Split larger APIs into modules with blueprints.
- Error Responses That Help — Return clear status codes and JSON error bodies.