= FastAPI =
 * https://fastapi.tiangolo.com/

FastAPI is a modern, fast (high-performance), web framework for building APIs with Python based on standard Python type hints.

FastAPI works OK without uv.  You can build, install, and run FastAPI projects using traditional tools like pip, venv, and poetry

== main.py ==

Install 
{{{#!highlight sh
# uv An extremely fast Python package and project manager, written in Rust.
# https://docs.astral.sh/uv/getting-started/installation/
curl -LsSf https://astral.sh/uv/install.sh | sh
pipx install uv
pip install uv
uv self update
pip install --upgrade uv

uv add "fastapi[standard]"

pip install fastapi[standard]
# Virtual Environment: Python's built-in venv module
# Dependency Management: requirements.txt or pyproject.toml
}}}

{{{#!highlight python
from fastapi import FastAPI

app = FastAPI()

@app.get("/")
def read_root():
    return {"Hello": "World"}

@app.get("/items/{item_id}")
def read_item(item_id: int, q: str | None = None):
    return {"item_id": item_id, "q": q}
}}}

Run
{{{
uv run fastapi dev
}}}

== pip , venv steps == 
{{{
python3 -m venv .venv
source .venv/bin/activate
echo "fastapi[standard]" > requirements.txt 

main.py 
from fastapi import FastAPI

app = FastAPI()

@app.get("/")
def read_root():
    return {"mensagem": "Olá, Mundo! O FastAPI está a funcionar!"}

fastapi dev main.py

# http://127.0.0.1:8000

uvicorn main:app --reload

}}}