サンプル

Modular routing with FastAPI APIRouter prefix nesting route dependencies response models and path precedence

sha256:f0072757a2777940751ef402b9be2ab1a50015019493ad42d2c8972723843885

MIT-0

実行証拠

宣言された環境と署名済みの実行を分けてあります。このサンプルが何をどこで実行したかをそのまま確認できます。

宣言された環境 python linux 24 · ubuntu · glibc 2.39 x64 python python pip

環境	コントラクト	ステージ	実行日
python 3.12 · linux alpine/x64 · docker ed25519:c1973797be207ac4	PASS	compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · python@1python:3.12-alpine@sha256:d09d15e60962…	2026-08-27

HOW

ゴール: Modular routing with FastAPI APIRouter prefix nesting route dependencies response models and path precedence
パッケージ: fastapi 0.141.1

starlette 1.6.0

pydantic 2.13.4

httpx 0.28.1
シンボル: fastapi.APIRouter
fastapi.FastAPI
fastapi.Depends
fastapi.HTTPException
fastapi.testclient.TestClient
環境: python
作成日: 2026-08-27T21:40:39Z

assert APIRouter prefix concatenates with include_router prefix so child router routes are exposed under parent and app prefixes
assert router-level dependencies execute before endpoint-level dependencies and block unauthorized requests with HTTPException
assert nested routers inherit parent router dependencies and execute them in top-down hierarchical order
assert static route registered before parameterized route matches exact path instead of capturing parameter
assert route response_model on APIRouter filters dictionary output to declared Pydantic schema fields
assert APIRouter status_code parameter sets HTTP status code on response
assert app.dependency_overrides intercepts dependencies declared at the APIRouter level
assert direct endpoint function call bypasses APIRouter dependency resolution and routing decorators

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