TPI: FastAPI tutorial [part 2]

[luabud]

Refs: #21586

• anyOS @isidorn
• anyOS @Yoyokrazy

Complexity: 3

Create Issue

---

We are adding a FastAPI tutorial to our Python docs page (PR). Because it's a fairly large doc to go through, I've broken it down into smaller pieces for the TPIs. You should be able to run through the section defined in this issue without having to read any previous content from the doc.

Set up:

1. Create a GitHuib Codespace on the main branch of this code sample: https://github.com/microsoft/python-sample-vscode-fastapi-tutorial
2. Delete the main.py and models.py files

Steps:

1. Follow the "Start coding" and the "Create a model for grocery list items" sections in the tutorial-fastapi.md file in this PR: Add FastAPI tutorial to Python docs  vscode-docs#6760

It's probably easier to consume the markdown file here, than in the PR view.

Things we're looking for in this TPI:

• Ensure the guidance makes sense and is accurate
• Ensure you get to a successful state at each step
• Any feedback on wording/structure of this section in the tutorial

You can feel free to open issues with problems you find, or comment in the PR directly.