return err
}

// SignatureDoesNotMatch - when content md5 does not match with what was sent from client.
type SignatureDoesNotMatch struct{}

func (e SignatureDoesNotMatch) Error() string {
	return "The request signature we calculated does not match the signature you provided. Check your key and signing method."
}

// StorageFull storage ran out of space.
type StorageFull struct{}

func (e StorageFull) Error() string {

Anschließend könnten Sie `test_main.py` mit den erweiterten Tests aktualisieren:

```Python
{!> ../../docs_src/app_testing/app_b/test_main.py!}
```

Wenn Sie möchten, dass der Client Informationen im Request übergibt und Sie nicht wissen, wie das geht, können Sie suchen (googeln), wie es mit `httpx` gemacht wird, oder sogar, wie es mit `requests` gemacht wird, da das Design von HTTPX auf dem Design von Requests basiert.

///

## What it does

It will go and look in the request for that `Authorization` header, check if the value is `Bearer ` plus some token, and will return the token as a `str`.

これは、FastAPI に直接インポート/インクルードされるため、`fastapi` からインポートできる上に、`starlette.background`から別の `BackgroundTask` (末尾に `s` がない) を誤ってインポートすることを回避できます。

`BackgroundTasks`のみを使用することで (`BackgroundTask` ではなく)、`Request` オブジェクトを直接使用する場合と同様に、それを *path operations 関数* パラメーターとして使用し、**FastAPI** に残りの処理を任せることができます。

それでも、FastAPI で `BackgroundTask` を単独で使用することは可能ですが、コード内でオブジェクトを作成し、それを含むStarlette `Response` を返す必要があります。

general, be batched to be fixed at the same time as a quarterly release. We
credit reporters for identifying security issues, although we keep your name
confidential if you request it. Please see Google Bug Hunters program website

// https://github.com/minio/minio/issues/5667
var errErasureV3ThisEmpty = fmt.Errorf("Erasure format version 3 has This field empty")

// isServerResolvable - checks if the endpoint is resolvable
// by sending a naked HTTP request with liveness checks.
func isServerResolvable(endpoint Endpoint, timeout time.Duration) error {
	serverURL := &url.URL{
		Scheme: endpoint.Scheme,
		Host:   endpoint.Host,

                        </Array>
                    </mxGeometry>
                </mxCell>
                <mxCell id="84" value="&lt;span style=&quot;font-family: &amp;#34;roboto&amp;#34; ; font-size: 24px&quot;&gt;Decrypted request for: someapp.example.com&lt;/span&gt;" style="shape=hexagon;perimeter=hexagonPerimeter2;whiteSpace=wrap;html=1;fixedSize=1;strokeColor=#82b366;strokeWidth=3;fillColor=#d5e8d4;" parent="1" vertex="1">

     * certificate authority is not possible.
     *
     * The server’s TLS certificate still must match the requested hostname. For example, if the
     * certificate is issued to `example.com` and the request is to `localhost`, the connection will
     * fail. Use a custom [HostnameVerifier] to ignore such problems.
     *
     * Other TLS features are still used but provide no security benefits in absence of the above

(`BackgroundTask`가 아닌) `BackgroundTasks`를 사용하면, _경로 작동 함수_ 매개변수로 사용할 수 있게 되고 나머지는 **FastAPI**가 대신 처리하도록 할 수 있습니다. 이것은 `Request` 객체를 직접 사용하는 것과 같은 방식입니다.

FastAPI에서 `BackgroundTask`를 단독으로 사용하는 것은 여전히 가능합니다. 하지만 객체를 코드에서 생성하고, 이 객체를 포함하는 Starlette `Response`를 반환해야 합니다.

Even though all your code is written assuming there's just `/app`.

{* ../../docs_src/behind_a_proxy/tutorial001.py hl[6] *}

And the proxy would be **"stripping"** the **path prefix** on the fly before transmitting the request to the app server (probably Uvicorn via FastAPI CLI), keeping your application convinced that it is being served at `/app`, so that you don't have to update all your code to include the prefix `/api/v1`.