/// info

To receive uploaded files and/or form data, first install [`python-multipart`](https://github.com/Kludex/python-multipart).

Make sure you create a [virtual environment](../virtual-environments.md), activate it, and then install it, for example:

```console
$ pip install python-multipart
```

///

## Import `File` and `Form` { #import-file-and-form }

- The steps required to fix the vulnerability.

In general, if the vulnerability exists in one of the MinIO code bases
itself - not in a code dependency - then MinIO will, if possible, fix
the vulnerability or implement reasonable countermeasures such that the

     * <p>To avoid races between threads doing release and acquire, we transition to the final state
     * in two steps. One thread will successfully CAS from RUNNING to COMPLETING, that thread will
     * then set the result of the computation, and only then transition to COMPLETED, CANCELLED, or
     * INTERRUPTED.
     *
     * <p>We don't use the integer argument passed between acquire methods so we pass around a -1
     * everywhere.
     */

            This pull request has been automatically marked as stale because it has not had recent activity.
            It will be closed in 14 days if no further activity occurs.
            If you don't want the stale bot to close it, then set a milestone for it.
          days-before-pr-close: 14
          close-pr-message: >

        versionFile.text = patchVersion
        ReleasedVersionsHelperKt.updateReleasedVersionFile(releasedVersionsFile, previousVersion)

        then:
        versionFile.text == "9.4.1"
        releasedVersionsFile.text == expectedReleasedVersionsContent
    }

			Type:        "url",
			Sensitive:   true,
		},
		config.HelpKV{
			Key:         AuthToken,
			Description: "[DEPRECATED] authorization token for OPA endpoint" + defaultHelpPostfix(AuthToken),
			Optional:    true,
			Type:        "string",
			Sensitive:   true,
			Secret:      true,
		},
		config.HelpKV{
			Key:         config.Comment,

        when:
        ReleasedVersionsHelperKt.updateReleasedVersionFile(releasedVersionsFile, newSnapshot) == ''

        then:
        releasedVersionsFile.text == expectedFileContent
    }

    ReleasedVersion releasedVersion(String version, long date = System.currentTimeMillis()) {
        new ReleasedVersion(version, format.format(new Date(date)))

```

</div>

在浏览器中打开 [http://127.0.0.1:8000](http://127.0.0.1:8000)。

在页面中，您可以设置：

* "Item ID"，用于路径。
* "Token"，作为查询参数。

/// tip

注意，查询参数 `token` 将由依赖项处理。

///

通过这样，您可以连接 WebSocket，然后发送和接收消息：

<img src="/img/tutorial/websockets/image05.png">

## 处理断开连接和多个客户端 { #handling-disconnections-and-multiple-clients }

	ch := make(chan madmin.SpeedTestResult, 1)
	go func() {
		defer xioutil.SafeClose(ch)

		concurrency := opts.concurrencyStart

		if opts.autotune {
			// if we have less drives than concurrency then choose
			// only the concurrency to be number of drives to start
			// with - since default '32' might be big and may not
			// complete in total time of 10s.
			if globalEndpoints.NEndpoints() < concurrency {

	return ConnectWSWithRoutePath(dial, auth, tls, RoutePath)
}

// ValidateTokenFn must validate the token and return an error if it is invalid.