aders" class="external-link" target="_blank">Verwenden Sie dafür das Präfix 'X-'</a>.

Wenn Sie jedoch benutzerdefinierte Header haben, die ein Client in einem Browser sehen soll, müssen Sie sie zu Ihrer CORS-Konfigurationen ([CORS (Cross-Origin Resource Sharing)](cors.md){.internal-link target=_blank}) hinzufügen, indem Sie den Parameter `expose_headers` verwenden, der in der <a href="https://www.starlette.io/middleware/#corsmiddleware" class="external-link" target="_blank">Starlette-CO...

/// note | "说明"

如果你使用不带有任何媒体类型的响应类，FastAPI 认为你的响应没有任何内容，所以不会在生成的OpenAPI文档中记录响应格式。

///

## 使用 `ORJSONResponse`

例如，如果你需要压榨性能，你可以安装并使用 <a href="https://github.com/ijl/orjson" class="external-link" target="_blank">`orjson`</a> 并将响应设置为 `ORJSONResponse`。

导入你想要使用的 `Response` 类（子类）然后在 *路径操作装饰器* 中声明它。

```Python hl_lines="2 7"
{!../../docs_src/custom_response/tutorial001b.py!}
```

/// info | "提示"

* <a href="https://www.uvicorn.org" target="_blank"><code>uvicorn</code></a> - oluşturduğumuz uygulamayı servis edecek web sunucusu görevini üstlenir.
* <a href="https://github.com/ijl/orjson" target="_blank"><code>orjson</code></a> - `ORJSONResponse` kullanacaksanız gereklidir.
* <a href="https://github.com/esnme/ultrajson" target="_blank"><code>ujson</code></a> - `UJSONResponse` kullanacaksanız gerekli.

But if you have custom headers that you want a client in a browser to be able to see, you need to add them to your CORS configurations ([CORS (Cross-Origin Resource Sharing)](cors.md){.internal-link target=_blank}) using the parameter `expose_headers` documented in <a href="https://www.starlette.io/middleware/#corsmiddleware" class="external-link" target="_blank">Starlette's CORS docs</a>.

```

/// tip

请记住可以 <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers" class="external-link" target="_blank">用'X-' 前缀</a>添加专有自定义请求头.

但是如果你想让浏览器中的客户端看到你的自定义请求头, 你需要把它们加到 CORS 配置 ([CORS (Cross-Origin Resource Sharing)](cors.md){.internal-link target=_blank}) 的 `expose_headers` 参数中,在 <a href="https://www.starlette.io/middleware/#corsmiddleware" class="external-link" target="_blank">Starlette's CORS docs</a>文档中.

///

	}
	if err != nil {
		apiErr.Description = fmt.Sprintf("%s (%s)", apiErr.Description, err)
	}
	if region := globalSite.Region(); region != "" {
		if errCode == ErrAuthorizationHeaderMalformed {
			apiErr.Description = fmt.Sprintf("The authorization header is malformed; the region is wrong; expecting '%s'.", region)
			return apiErr
		}
	}
	return apiErr
}

	return defaultSha256Cksum
}

// isValidRegion - verify if incoming region value is valid with configured Region.
func isValidRegion(reqRegion string, confRegion string) bool {
	if confRegion == "" {
		return true
	}
	if confRegion == "US" {
		confRegion = globalMinioDefaultRegion
	}
	// Some older s3 clients set region as "US" instead of
	// globalMinioDefaultRegion, handle it.
	if reqRegion == "US" {

	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if origin := w.Header().Get("Access-Control-Allow-Origin"); origin == "null" {
			// This is a workaround change to ensure that "Origin: null"
			// incoming request to a response back as "*" instead of "null"
			w.Header().Set("Access-Control-Allow-Origin", "*")
		}
		if globalDNSConfig == nil || !globalBucketFederation ||

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package config

// One time migration code section

// SetRegion - One time migration code needed, for migrating from older config to new for server Region.
func SetRegion(c Config, name string) {
	if name == "" {
		return
	}
	c[RegionSubSys][Default] = KVS{
		KV{
			Key:   RegionName,
			Value: name,
		},
	}

	return len(list.targets) == 0
}

// List - returns available target IDs.
func (list *TargetList) List(region string) []ARN {
	list.RLock()
	defer list.RUnlock()

	keys := make([]ARN, 0, len(list.targets))
	for k := range list.targets {
		keys = append(keys, k.ToARN(region))
	}

	return keys
}

// TargetMap - returns available targets.