ease-in-out,background-color .15s ease-in-out,border-color .15s ease-in-out,box-shadow .15s ease-in-out}@media (prefers-reduced-motion:reduce){.form-control::-webkit-file-upload-button{-webkit-transition:none;transition:none}.form-control::file-selector-button{transition:none}}.form-control:hover:not(:disabled):not([readonly])::-webkit-file-upload-button{background-color:var(--bs-secondary-bg)}.form-control:hover:not(:disabled):not([readonly])::file-selector-button{background-color:var(--bs-secondary-bg)}...

## Base64 vs Arquivos { #base64-vs-files }

Primeiro, considere se você pode usar [Arquivos na request](../tutorial/request-files.md) para fazer upload de dados binários e [Response personalizada - FileResponse](./custom-response.md#fileresponse--fileresponse-) para enviar dados binários, em vez de codificá-los em JSON.

Це не обмеження **FastAPI**, а частина протоколу HTTP.

///

## Необов’язкове завантаження файлу { #optional-file-upload }

Ви можете зробити файл необов’язковим, використовуючи стандартні анотації типів і встановивши значення за замовчуванням `None`:

{* ../../docs_src/request_files/tutorial001_02_an_py310.py hl[9,17] *}

	s.RUnlock()

	dstBuf, err := xioutil.ReadFile(dstFilePath)
	if err != nil {
		// handle situations when dstFilePath is 'file'
		// for example such as someone is trying to
		// upload an object such as `prefix/object/xl.meta`
		// where `prefix/object` is already an object
		if isSysErrNotDir(err) && runtime.GOOS != globalWindowsOSName {
			// NOTE: On windows the error happens at

d-moon:before{content:"\f6c3"}.fa-cloud-moon-rain:before{content:"\f73c"}.fa-cloud-rain:before{content:"\f73d"}.fa-cloud-showers-heavy:before{content:"\f740"}.fa-cloud-sun:before{content:"\f6c4"}.fa-cloud-sun-rain:before{content:"\f743"}.fa-cloud-upload-alt:before{content:"\f382"}.fa-cloudscale:before{content:"\f383"}.fa-cloudsmith:before{content:"\f384"}.fa-cloudversify:before{content:"\f385"}.fa-cocktail:before{content:"\f561"}.fa-code:before{content:"\f121"}.fa-code-branch:before{content:"\f1...

///

## 可選的檔案上傳 { #optional-file-upload }

可透過一般型別註解並將預設值設為 `None` 使檔案成為可選：

{* ../../docs_src/request_files/tutorial001_02_an_py310.py hl[9,17] *}

## `UploadFile` 搭配額外中繼資料 { #uploadfile-with-additional-metadata }

你也可以在 `UploadFile` 上搭配 `File()`，例如用來設定額外的中繼資料：

{* ../../docs_src/request_files/tutorial001_03_an_py310.py hl[9,15] *}

## 多檔案上傳 { #multiple-file-uploads }

可以同時上傳多個檔案。

     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getSupportedUploadedJsExtentions();

    /**
     * Get the value for the key 'supported.uploaded.css.extentions'. <br>
     * The value is, e.g. css <br>
     * comment: Supported CSS file extensions for upload.

Ce n'est pas une limitation de **FastAPI**, cela fait partie du protocole HTTP.

///

## Téléversement de fichier facultatif { #optional-file-upload }

Vous pouvez rendre un fichier facultatif en utilisant des annotations de type standard et en définissant une valeur par défaut à `None` :

{* ../../docs_src/request_files/tutorial001_02_an_py310.py hl[9,17] *}

Esto no es una limitación de **FastAPI**, es parte del protocolo HTTP.

///

## Subida de Archivos Opcional { #optional-file-upload }

Puedes hacer un archivo opcional utilizando anotaciones de tipos estándar y estableciendo un valor por defecto de `None`:

{* ../../docs_src/request_files/tutorial001_02_an_py310.py hl[9,17] *}

above. For example if the zone is `public`, use ```sh firewall-cmd --zone=public --add-port=9000/tcp --permanent ``` Note that `permanent` makes sure the rules are persistent across firewall start, restart or reload. Finally reload the firewall for changes to take effect. ```sh firewall-cmd --reload ``` ### iptables For hosts with iptables enabled (RHEL, CentOS, etc), you can use `iptables` command to enable all traffic coming to specific ports. Use below command to allow access to port 9000 ```sh iptables...