```

!!! tip "Tipp"
    Diese letzte Pfadoperation wird eine Kombination von Tags haben: `["items", "custom"]`.

    Und sie wird auch beide Responses in der Dokumentation haben, eine für `404` und eine für `403`.

## Das Haupt-`FastAPI`.

Sehen wir uns nun das Modul unter `app/main.py` an.

Hier importieren und verwenden Sie die Klasse `FastAPI`.

Dies ist die Hauptdatei Ihrer Anwendung, die alles zusammen bindet.

			//   on the bucket, Amazon S3 will return an
			//   HTTP status code 404 ("no such key")
			//   error.
			// * if you don’t have the s3:ListBucket
			//   permission, Amazon S3 will return an HTTP
			//   status code 403 ("access denied") error.`
			if globalPolicySys.IsAllowed(policy.BucketPolicyArgs{
				Action:          policy.ListBucketAction,
				BucketName:      bucket,

```Python hl_lines="30-31" title="app/routers/items.py"
{!../../../docs_src/bigger_applications/app/routers/items.py!}
```

!!! tip
    最后的这个路径操作将包含标签的组合：`["items"，"custom"]`。

    并且在文档中也会有两个响应，一个用于 `404`，一个用于 `403`。

## `FastAPI` 主体

现在，让我们来看看位于 `app/main.py` 的模块。

在这里你导入并使用 `FastAPI` 类。

这将是你的应用程序中将所有内容联结在一起的主文件。

并且由于你的大部分逻辑现在都存在于其自己的特定模块中，因此主文件的内容将非常简单。

### 导入 `FastAPI`

// The operation returns a 200 OK if the bucket exists and you
// have permission to access it. Otherwise, the operation might
// return responses such as 404 Not Found and 403 Forbidden.
func (api objectAPIHandlers) HeadBucketHandler(w http.ResponseWriter, r *http.Request) {
	ctx := newContext(r, w, "HeadBucket")

	defer logger.AuditLog(ctx, w, r, mustGetClaimsFromToken(r))

    assertCached(false, 306)
    assertCached(true, 307)
    assertCached(true, 308)
    assertCached(false, 400)
    assertCached(false, 401)
    assertCached(false, 402)
    assertCached(false, 403)
    assertCached(true, 404)
    assertCached(true, 405)
    assertCached(false, 406)
    assertCached(false, 408)
    assertCached(false, 409)
    // the HTTP spec permits caching 410s, but the RI doesn't.

4-03-10 19:43:40,2014-03-10 19:52:51,N,1,-73.863929748535156,40.732795715332031,-73.859237670898437,40.750602722167969,3,1.69,8,1,0.5,0,0,,,9.5,2,1,196,173,green,0.00,1.2,0.0,51,36,5.37,1288,717.02,4,Queens,071702,4071702,I,QN18,Rego Park,4108,650,403,4,Queens,040300,4040300,E,QN26,North Corona,4102^3389338,2,2014-03-14 20:27:59,2014-03-14 20:34:20,N,1,-73.863815307617188,40.732875823974609,-73.875564575195313,40.735641479492188,2,0.79,5.5,0.5,0.5,0,0,,,6.5,2,1,196,82,green,0.00,0.0,0.0,46,22,5....

			expectedRespStatus: http.StatusNoContent,
		},
		// Test case - 3.
		// Setting Invalid AccessKey to force signature check inside the handler to fail.
		// Should return HTTP response status 403 forbidden.
		{
			bucketName: bucketName,
			objectName: objectName,
			accessKey:  "Invalid-AccessKey",
			secretKey:  credentials.SecretKey,

			expectedRespStatus: http.StatusForbidden,
		},

* Ensure Azure load balancer cleaned up on 404 or 403 when deleting LoadBalancer services. ([#75256](https://github.com/kubernetes/kubernetes/pull/75256), [@feiskyer](https://github.com/feiskyer))



# v1.14.0-beta.2

[Documentation](https://docs.k8s.io)

pkg syscall (freebsd-riscv64), const SYS_KSEM_TIMEDWAIT = 441 #53466
pkg syscall (freebsd-riscv64), const SYS_KSEM_TIMEDWAIT ideal-int #53466
pkg syscall (freebsd-riscv64), const SYS_KSEM_TRYWAIT = 403 #53466
pkg syscall (freebsd-riscv64), const SYS_KSEM_TRYWAIT ideal-int #53466
pkg syscall (freebsd-riscv64), const SYS_KSEM_UNLINK = 406 #53466
pkg syscall (freebsd-riscv64), const SYS_KSEM_UNLINK ideal-int #53466

* Ensure Azure load balancer cleaned up on 404 or 403 when deleting LoadBalancer services. ([#75256](https://github.com/kubernetes/kubernetes/pull/75256), [@feiskyer](https://github.com/feiskyer))