Posts by CoreyMSchafer

This was written by a viewer and definitely not by me... I mean him. Totally not written by him, but by me... a real viewer. Seriously, check out his channel for amazing Python content.

I used to think type hints were just extra typing (pun intended). But after using FastAPI, I see how they enable incredible tooling - better autocomplete, automatic validation, and self-documenting code.

JSON Web Tokens seemed scary at first, but they're actually pretty simple. Encode some user data, sign it with a secret, and use it to verify requests. FastAPI + PyJWT makes it straightforward.

FastAPI's TestClient makes testing a breeze. Write tests for your endpoints, mock dependencies, and catch bugs before they hit production. Your future self will thank you.

APIs evolve. Version them from day one! Whether you use URL prefixes (/v1/users) or headers, plan for change. Breaking changes without versioning breaks trust.

Need validation beyond type checking? Pydantic's field_validator and model_validator decorators let you add custom logic. Validate emails, check password strength, whatever you need.

Returning 10,000 records in one response? Please don't. Implement pagination with limit and offset (or better, cursor-based). Your database and clients will be happier.

If you've paginated all the way to this post, the 44th one... you get to learn this fun fact: that my high school football number was #44. Other notable absolute legends who wore number #44 include: Jerry West (NBA - Also fellow WV Native), Hank Aaron (MLB), and Floyd Little (NFL).

If you've paginated all the way to this post, the 44th one... you get to learn this fun fact: that my high school football number was #44. Other notable absolute legends who wore number #44 include: Jerry West (NBA - Also fellow WV Native), Hank Aaron (MLB), and Floyd Little (NFL).