///

/// note | "Technische Details"

Sie können auch `from starlette.responses import JSONResponse` verwenden.

**FastAPI** bietet dieselben `starlette.responses` auch via `fastapi.responses` an, als Annehmlichkeit für Sie, den Entwickler. Die meisten verfügbaren Responses kommen aber direkt von Starlette. Das Gleiche gilt für `status`.

///

## OpenAPI- und API-Dokumentation

///

/// note | "Detalhes técnicos"

Você também pode utilizar `from starlette.responses import JSONResponse`.

O **FastAPI** disponibiliza o `starlette.responses` como `fastapi.responses` apenas por conveniência para você, o programador. Porém a maioria dos retornos disponíveis vem diretamente do Starlette. O mesmo com `status`.

///

## OpenAPI e documentação da API

///

これは:

* レスポンスでステータスコードを返します。
* OpenAPIスキーマ（およびユーザーインターフェース）に以下のように文書化します:

<img src="https://fastapi.tiangolo.com/img/tutorial/response-status-code/image01.png">

/// note | "備考"

いくつかのレスポンスコード（次のセクションを参照）は、レスポンスにボディがないことを示しています。

FastAPIはこれを知っていて、レスポンスボディがないというOpenAPIドキュメントを生成します。

///

## HTTPステータスコードについて

/// note | "備考"

///

**FastAPI** est basé entièrement sur **Pydantic**.

Vous verrez bien plus d'exemples de son utilisation dans [Tutoriel - Guide utilisateur](tutorial/index.md){.internal-link target=_blank}.

## Les annotations de type dans **FastAPI**

**FastAPI** utilise ces annotations pour faire différentes choses.

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


@pytest.fixture(name="client")
def get_client():
    from docs_src.body_multiple_params.tutorial001 import app

    client = TestClient(app)
    return client


def test_post_body_q_bar_content(client: TestClient):
    response = client.put("/items/5?q=bar", json={"name": "Foo", "price": 50.5})
    assert response.status_code == 200

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

from ...utils import needs_py310


@pytest.fixture(name="client")
def get_client():
    from docs_src.body_multiple_params.tutorial001_an_py310 import app

    client = TestClient(app)
    return client


@needs_py310
def test_post_body_q_bar_content(client: TestClient):

import pytest
from fastapi.testclient import TestClient

from tests.utils import needs_py39, needs_pydanticv1


@pytest.fixture(name="client")
def get_client():
    from docs_src.request_form_models.tutorial002_pv1_an_py39 import app

    client = TestClient(app)
    return client


# TODO: remove when deprecating Pydantic v1
@needs_pydanticv1
@needs_py39
def test_post_body_form(client: TestClient):

from dirty_equals import IsDict
from fastapi.testclient import TestClient

from docs_src.request_files.tutorial001 import app

client = TestClient(app)


file_required = {
    "detail": [
        {
            "loc": ["body", "file"],
            "msg": "field required",
            "type": "value_error.missing",
        }
    ]
}


def test_post_form_no_body():
    response = client.post("/files/")

from dirty_equals import IsDict
from fastapi.testclient import TestClient

from docs_src.request_files.tutorial001_an import app

client = TestClient(app)


def test_post_form_no_body():
    response = client.post("/files/")
    assert response.status_code == 422, response.text
    assert response.json() == IsDict(
        {
            "detail": [
                {
                    "type": "missing",

* Erstellen Sie eine leere Datei `__init__.py`.
* Erstellen Sie eine `main.py`-Datei mit:

```Python
from typing import Union

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: Union[str, None] = None):
    return {"item_id": item_id, "q": q}
```

### Dockerfile