Dependencies & API Design

Preview — 3 of 10 questions

Why can /users/me become unreachable here?

javascript

@app.get("/users/{user_id}")
def user(user_id: str):
    return {"id": user_id}

@app.get("/users/me")
def me():
    return {"id": "me"}

AFastAPI forbids two GET routes under /users

BThe earlier dynamic route can match me first

Cme is a reserved Python identifier

DThe static route requires a Pydantic model

What does this declaration enforce for GET /items?limit=0?

javascript

from typing import Annotated
from fastapi import Query

def list_items(limit: Annotated[int, Query(ge=1, le=100)] = 20):
    return limit

AIt silently changes 0 to 1

BIt accepts 0 and returns it

CIt rejects 0 as a validation error

DIt treats 0 as a missing value

Which annotation explicitly marks a nested Pydantic value as a request body?

AAnnotated[Item, Body()]

BAnnotated[Item, Path()]

CAnnotated[Item, Header()]

DAnnotated[Item, Cookie()]

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