# The "digest" that allows us to pull an image is not the digest as
          # returned by the API, but a sha256sum of the entire chunk of image
          # metadata. gcr.io helpfully includes it in the header of the response
          # as docker-content-digest: sha256:[digest]. Note we use egrep to
          # match exactly sha256:<hash> because curl may include a ^M symbol at
          # the end of the line.

Zusammen mit Hug (da Hug auf Falcon basiert), einen `response`-Parameter in Funktionen zu deklarieren.

Obwohl er in FastAPI optional ist und hauptsächlich zum Festlegen von Headern, Cookies und alternativen Statuscodes verwendet wird.

///

### <a href="https://moltenframework.com/" class="external-link" target="_blank">Molten</a>

    }

    public void test_commonPaths() throws Exception {
        // Test common paths
        assertEquals("/index.jsp", FessHtmlPath.path_IndexJsp.getRoutingPath());
        assertEquals("/header.jsp", FessHtmlPath.path_HeaderJsp.getRoutingPath());
        assertEquals("/footer.jsp", FessHtmlPath.path_FooterJsp.getRoutingPath());
        assertEquals("/help.jsp", FessHtmlPath.path_HelpJsp.getRoutingPath());
    }

        assertTrue(length >= 0);
    }

    @Test
    @DisplayName("Test decode operation")
    void testDecode() {
        byte[] buffer = new byte[1024];
        // Fill with basic SMB header structure
        System.arraycopy(new byte[] { (byte) 0xFF, 'S', 'M', 'B' }, 0, buffer, 0, 4);
        buffer[4] = 1; // wordCount
        buffer[7] = 0; // byteCount low
        buffer[8] = 0; // byteCount high

    static final int IN = 0x0001;
    static final int A = 0x0001;
    static final int NS = 0x0002;
    static final int NULL = 0x000a;

    static final int HEADER_LENGTH = 12;

    // header field offsets
    static final int OPCODE_OFFSET = 2;
    static final int QUESTION_OFFSET = 4;
    static final int ANSWER_OFFSET = 6;
    static final int AUTHORITY_OFFSET = 8;
    static final int ADDITIONAL_OFFSET = 10;

이 경우, 프론트엔드가 제대로 동작하기 위해 `http://localhost:8080`을 목록에 포함해야 합니다.

## 와일드카드

모든 출처를 허용하기 위해 목록을 `"*"` ("와일드카드")로 선언하는 것도 가능합니다.

하지만 이것은 특정한 유형의 통신만을 허용하며, 쿠키 및 액세스 토큰과 사용되는 인증 헤더(Authoriztion header) 등이 포함된 경우와 같이 자격 증명(credentials)이 포함된 통신은 허용되지 않습니다.

따라서 모든 작업을 의도한대로 실행하기 위해, 허용되는 출처를 명시적으로 지정하는 것이 좋습니다.

## `CORSMiddleware` 사용

`CORSMiddleware` 을 사용하여 **FastAPI** 응용 프로그램의 교차 출처 리소스 공유 환경을 설정할 수 있습니다.

    static final int IN = 0x0001;
    static final int A = 0x0001;
    static final int NS = 0x0002;
    static final int NULL = 0x000a;

    static final int HEADER_LENGTH = 12;

    // header field offsets
    static final int OPCODE_OFFSET = 2;
    static final int QUESTION_OFFSET = 4;
    static final int ANSWER_OFFSET = 6;
    static final int AUTHORITY_OFFSET = 8;
    static final int ADDITIONAL_OFFSET = 10;

			Description: "persist IAM assets externally to etcd",
		},
		config.HelpKV{
			Key:         config.BrowserSubSys,
			Description: "manage Browser HTTP specific features, such as Security headers, etc.",
			Optional:    true,
		},
		config.HelpKV{
			Key:         config.ILMSubSys,
			Description: "manage ILM settings for expiration and transition workers",
			Optional:    true,
		},
	}

Also fügen wir sie in ihr eigenes `dependencies`-Modul (`app/dependencies.py`) ein.

Wir werden nun eine einfache Abhängigkeit verwenden, um einen benutzerdefinierten `X-Token`-Header zu lesen:

//// tab | Python 3.9+

```Python hl_lines="3  6-8" title="app/dependencies.py"
{!> ../../docs_src/bigger_applications/app_an_py39/dependencies.py!}
```

////

//// tab | Python 3.8+

    * JSON.
    * Pfad-Parametern.
    * Abfrage-Parametern.
    * Cookies.
    * Header-Feldern.
    * Formularen.
    * Dateien.
* <abbr title="auch bekannt als: Serialisierung, Parsen, Marshalling">Konvertierung</abbr> von Ausgabedaten: Konvertierung von Python-Daten und -Typen zu Netzwerkdaten (als JSON):