* 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"
    すでにHTTPステータスコードが何であるかを知っている場合は、次のセクションにスキップしてください。

HTTPでは、レスポンスの一部として３桁の数字のステータスコードを送信します。

participant dep as Dep with yield
participant operation as Path Operation
participant tasks as Background tasks

    Note over client,tasks: Can raise exception for dependency, handled after response is sent
    Note over client,operation: Can raise HTTPException and can change the response
    client ->> dep: Start request
    Note over dep: Run code up to yield
    opt raise
        dep -->> handler: Raise HTTPException

```Python hl_lines="4  11  15-18"
{!../../../docs_src/templates/tutorial001.py!}
```

!!! note "Hinweis"
    Vor FastAPI 0.108.0 und Starlette 0.29.0 war `name` der erste Parameter.

    Außerdem wurde in früheren Versionen das `request`-Objekt als Teil der Schlüssel-Wert-Paare im Kontext für Jinja2 übergeben.

Dazu verwenden Sie den `TestClient` in einer `with`-Anweisung, eine Verbindung zum WebSocket herstellend:

```Python hl_lines="27-31"
{!../../../docs_src/app_testing/tutorial002.py!}
```

!!! note "Hinweis"

{!../../../docs_src/query_params_str_validations/tutorial013.py!}
```

!!! note "참고"
    이 경우 FastAPI는 리스트의 내용을 검사하지 않음을 명심하기 바랍니다.

    예를 들어, `List[int]`는 리스트 내용이 정수인지 검사(및 문서화)합니다. 하지만 `list` 단독일 경우는 아닙니다.

## 더 많은 메타데이터 선언

매개변수에 대한 정보를 추가할 수 있습니다.

해당 정보는 생성된 OpenAPI에 포함되고 문서 사용자 인터페이스 및 외부 도구에서 사용됩니다.

!!! note "참고"
    도구에 따라 OpenAPI 지원 수준이 다를 수 있음을 명심하기 바랍니다.

* If a socket is found, istio-agent will not start its own SDS Server and Envoy will be configured to use that socket as its source of cryptographic material.

    bazel test ${flags} //tensorflow/python/saved_model:load_test --test_filter=*LoadTest.test_capture_variables*
    ```

    **Note:** You can add `--test_sharding_strategy=disabled` to the `flags` to
    disable the sharding so that all the test outputs are in one file. However,
    it may slow down the tests for not running in parallel and may cause the
    test to timeout but it could be useful when you need to execute a single

```Python
contents = myfile.file.read()
```

!!! note "`async` Technical Details"
    When you use the `async` methods, **FastAPI** runs the file methods in a threadpool and awaits for them.

!!! note "Starlette Technical Details"

# limitations under the License.
# ==============================================================================
# Sourcing this enables Bazel remote cache (read and write)
# Note that "_push" cache configs write to GCS buckets and require
# authentication. If you are not a Googler, source "public_cache" to enable the
# public read-only cache.
# The cache configs are different for MacOS and Linux
if [[ $(uname -s) == "Darwin" ]]; then

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


@app.get("/items/{item_id}")
async def read_item(item_id: int, q: Union[str, None] = None):
    return {"item_id": item_id, "q": q}
```

**Nota**:

Se você não sabe, verifique a seção _"In a hurry?"_ sobre <a href="https://fastapi.tiangolo.com/async/#in-a-hurry" target="_blank">`async` e `await` nas docs</a>.

</details>

### Rode