/// info | 技术细节

`Security` 实际上是 `Depends` 的子类，而且只比 `Depends` 多一个参数。

但使用 `Security` 代替 `Depends`，**FastAPI** 可以声明安全作用域，并在内部使用这些作用域，同时，使用 OpenAPI 存档 API。

但实际上，从 `fastapi` 导入的 `Query`、`Path`、`Depends`、`Security` 等对象，只是返回特殊类的函数。

///

## 使用 `SecurityScopes`

修改依赖项 `get_current_user`。

这是上面的依赖项使用的依赖项。

这里使用的也是之前创建的 OAuth2 方案，并把它声明为依赖项：`oauth2_scheme`。

	},
}

// Recycle the underlying map.
func (m *MSS) Recycle() {
	if m != nil && *m != nil {
		mssPool.Put(*m)
		*m = nil
	}
}

// ToQuery constructs a URL query string from the MSS, including "?" if there are any keys.
func (m MSS) ToQuery() string {
	if len(m) == 0 {
		return ""
	}
	var buf strings.Builder
	buf.WriteByte('?')
	keys := make([]string, 0, len(m))

Durch die Verwendung von `Security` anstelle von `Depends` weiß **FastAPI** jedoch, dass es Sicherheits-Scopes deklarieren, intern verwenden und die API mit OpenAPI dokumentieren kann.

Wenn Sie jedoch `Query`, `Path`, `Depends`, `Security` und andere von `fastapi` importieren, handelt es sich tatsächlich um Funktionen, die spezielle Klassen zurückgeben.

///

## `SecurityScopes` verwenden { #use-securityscopes }

}

func extractMetadata(ctx context.Context, mimesHeader ...textproto.MIMEHeader) (metadata map[string]string, err error) {
	metadata = make(map[string]string)

	for _, hdr := range mimesHeader {
		// Extract all query values.
		err = extractMetadataFromMime(ctx, hdr, metadata)
		if err != nil {
			return nil, err
		}
	}

	// Set content-type to default value if it is not set.

	public final fun password ()Ljava/lang/String;
	public final fun pathSegments ()Ljava/util/List;
	public final fun pathSize ()I
	public final fun port ()I
	public final fun query ()Ljava/lang/String;
	public final fun queryParameter (Ljava/lang/String;)Ljava/lang/String;
	public final fun queryParameterName (I)Ljava/lang/String;
	public final fun queryParameterNames ()Ljava/util/Set;

But by using `Security` instead of `Depends`, **FastAPI** will know that it can declare security scopes, use them internally, and document the API with OpenAPI.

But when you import `Query`, `Path`, `Depends`, `Security` and others from `fastapi`, those are actually functions that return special classes.

///

## Use `SecurityScopes` { #use-securityscopes }

Pero al usar `Security` en lugar de `Depends`, **FastAPI** sabrá que puede declarar scopes de seguridad, usarlos internamente y documentar la API con OpenAPI.

Pero cuando importas `Query`, `Path`, `Depends`, `Security` y otros de `fastapi`, en realidad son funciones que devuelven clases especiales.

///

## Usar `SecurityScopes` { #use-securityscopes }

import org.opensearch.action.search.SearchResponse;
import org.opensearch.common.settings.Settings;
import org.opensearch.common.xcontent.XContentType;
import org.opensearch.index.query.QueryBuilders;
import org.opensearch.search.SearchHit;
import org.opensearch.transport.client.Client;

/**
 * The AnalyzerSettings class is responsible for managing and configuring analyzers for different fields and languages.

    /**
     * Open does not cause an opportunistic lock break for the file
     */
    public static final int FILE_NOP_RECALL = 0x400000;
    /**
     * The file is being opened solely to query its free space
     */
    public static final int FILE_OPEN_FOR_FREE_SPACE_QUERY = 0x800000;

    private byte securityFlags;
    private byte requestedOplockLevel = SMB2_OPLOCK_LEVEL_NONE;

        openapi_examples=openapi_examples,
        deprecated=deprecated,
        include_in_schema=include_in_schema,
        json_schema_extra=json_schema_extra,
        **extra,
    )


def Query(  # noqa: N802
    default: Annotated[
        Any,
        Doc(
            """
            Default value if the parameter field is not set.
            """
        ),
    ] = Undefined,
    *,