以下にある最後の`CommonQueryParams`:

```Python
... = Depends(CommonQueryParams)
```

...は、**FastAPI** が依存関係を知るために実際に使用するものです。

そこからFastAPIが宣言されたパラメータを抽出し、それが実際にFastAPIが呼び出すものです。

---

この場合、以下にある最初の`CommonQueryParams`:

```Python
commons: CommonQueryParams ...
```

...は **FastAPI** に対して特別な意味をもちません。FastAPIはデータ変換や検証などには使用しません（それらのためには`= Depends(CommonQueryParams)`を使用しています）。

実際には以下のように書けばいいだけです:

from fastapi.testclient import TestClient

from docs_src.path_operation_advanced_configuration.tutorial003 import app

client = TestClient(app)


def test_get():
    response = client.get("/items/")
    assert response.status_code == 200, response.text
    assert response.json() == [{"item_id": "Foo"}]


def test_openapi_schema():
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text

import pytest
from dirty_equals import IsDict
from fastapi import FastAPI
from fastapi.testclient import TestClient


@pytest.fixture(name="app")
def get_app():
    from docs_src.request_forms_and_files.tutorial001 import app

    return app


@pytest.fixture(name="client")
def get_client(app: FastAPI):
    client = TestClient(app)
    return client


def test_post_form_no_body(client: TestClient):

import pytest
from dirty_equals import IsDict
from fastapi import FastAPI
from fastapi.testclient import TestClient

from ...utils import needs_py39


@pytest.fixture(name="app")
def get_app():
    from docs_src.request_forms_and_files.tutorial001_an_py39 import app

    return app


@pytest.fixture(name="client")
def get_client(app: FastAPI):
    client = TestClient(app)
    return client


@needs_py39

from fastapi import FastAPI

app = FastAPI(docs_url="/documentation", redoc_url=None)


@app.get("/items/")
async def read_items():

# 📄

👆 💪 ⚙️ 🙆 📄 🚒 👆 💚 ⏮️ **FastAPI**.

⚠ ⚒ Jinja2️⃣, 🎏 1️⃣ ⚙️ 🏺 & 🎏 🧰.

📤 🚙 🔗 ⚫️ 💪 👈 👆 💪 ⚙️ 🔗 👆 **FastAPI** 🈸 (🚚 💃).

## ❎ 🔗

❎ `jinja2`:

<div class="termy">

```console
$ pip install jinja2

---> 100%
```

</div>

## ⚙️ `Jinja2Templates`

* 🗄 `Jinja2Templates`.
* ✍ `templates` 🎚 👈 👆 💪 🏤-⚙️ ⏪.
* 📣 `Request` 🔢 *➡ 🛠️* 👈 🔜 📨 📄.

# ⚙️ 📨 🔗

🆙 🔜, 👆 ✔️ 📣 🍕 📨 👈 👆 💪 ⏮️ 👫 🆎.

✊ 📊 ⚪️➡️:

* ➡ 🔢.
* 🎚.
* 🍪.
* ♒️.

& 🔨, **FastAPI** ⚖ 👈 💽, 🏭 ⚫️ & 🏭 🧾 👆 🛠️ 🔁.

✋️ 📤 ⚠ 🌐❔ 👆 💪 💪 🔐 `Request` 🎚 🔗.

## ℹ 🔃 `Request` 🎚

**FastAPI** 🤙 **💃** 🔘, ⏮️ 🧽 📚 🧰 🔛 🔝, 👆 💪 ⚙️ 💃 <a href="https://www.starlette.io/requests/" class="external-link" target="_blank">`Request`</a> 🎚 🔗 🕐❔ 👆 💪.

from typing import List

from fastapi import FastAPI
from fastapi.testclient import TestClient
from pydantic import BaseModel


class Model(BaseModel):
    name: str


app = FastAPI()


@app.get("/valid1", responses={"500": {"model": int}})
def valid1():
    pass


@app.get("/valid2", responses={"500": {"model": List[int]}})
def valid2():
    pass


@app.get("/valid3", responses={"500": {"model": Model}})

#!/usr/bin/env bash

set -e
set -x

mypy fastapi
ruff check fastapi tests docs_src scripts

from fastapi import FastAPI

from .config import settings

app = FastAPI()


@app.get("/info")
async def info():
    return {
        "app_name": settings.app_name,
        "admin_email": settings.admin_email,
        "items_per_user": settings.items_per_user,