// by sending a naked HTTP request with liveness checks.
func isServerResolvable(endpoint Endpoint, timeout time.Duration) error {
	serverURL := &url.URL{
		Scheme: endpoint.Scheme,
		Host:   endpoint.Host,
		Path:   pathJoin(healthCheckPathPrefix, healthCheckLivenessPath),
	}

	httpClient := &http.Client{
		Transport: globalInternodeTransport,
	}

pkg net, type Resolver struct
pkg net, type Resolver struct, PreferGo bool
pkg net/url, func PathEscape(string) string
pkg net/url, func PathUnescape(string) (string, error)
pkg net/url, method (*URL) Hostname() string
pkg net/url, method (*URL) MarshalBinary() ([]uint8, error)
pkg net/url, method (*URL) Port() string
pkg net/url, method (*URL) UnmarshalBinary([]uint8) error
pkg net, var DefaultResolver *Resolver

Mas há situações específicas onde é útil utilizar o objeto `Request`.

## Utilize o objeto `Request` diretamente

Vamos imaginar que você deseja obter o endereço de IP/host do cliente dentro da sua *função de operação de rota*.

Para isso você precisa acessar a requisição diretamente.

{* ../../docs_src/using_request_directly/tutorial001.py hl[1,7:8] *}

            public long getCurrentTimeAsLong() {
                return System.currentTimeMillis();
            }

            @Override
            public String getHostname() {
                return "test-host";
            }

            @Override
            public File createTempFile(String prefix, String suffix) {
                try {
                    return File.createTempFile(prefix, suffix);

🛠️ 👈 🌐 📨 📨 🔜 👯‍♂️ `https` ⚖️ `wss`.

🙆 📨 📨 `http` ⚖️ `ws` 🔜 ❎ 🔐 ⚖ ↩️.

{* ../../docs_src/advanced_middleware/tutorial001.py hl[2,6] *}

## `TrustedHostMiddleware`

🛠️ 👈 🌐 📨 📨 ✔️ ☑ ⚒ `Host` 🎚, ✔ 💂‍♂ 🛡 🇺🇸🔍 🦠 🎚 👊.

{* ../../docs_src/advanced_middleware/tutorial002.py hl[2,6:8] *}

📄 ❌ 🐕‍🦺:

// Not a local locker
func (c *lockRESTClient) IsLocal() bool {
	return false
}

// Close - marks the client as closed.
func (c *lockRESTClient) Close() error {
	return nil
}

// String - returns the remote host of the connection.
func (c *lockRESTClient) String() string {
	return c.connection.Remote
}

	if err != nil {
		log.Fatalf("Error parsing sts endpoint: %v", err)
	}
	copts := &minio.Options{
		Creds:  li,
		Secure: stsEndpointURL.Scheme == "https",
	}
	minioClient, err := minio.New(stsEndpointURL.Host, copts)
	if err != nil {
		log.Fatalf("Error initializing client: ", err)
	}

	// Use minIO Client object normally like the regular client.

     * @param shareAccess the share access flags for file sharing
     * @throws SmbException if an SMB error occurs
     * @throws MalformedURLException if the URL is malformed
     * @throws UnknownHostException if the host cannot be resolved
     */
    public SmbRandomAccessFile(final String url, final String mode, final int shareAccess)
            throws SmbException, MalformedURLException, UnknownHostException {

```

</div>

...または、これら以外のASGIサーバ。

////

そして、チュートリアルと同様な方法でアプリケーションを起動して下さい。ただし、以下の様に`--reload` オプションは使用しないで下さい:

//// tab | Uvicorn

<div class="termy">

```console
$ uvicorn main:app --host 0.0.0.0 --port 80

<span style="color: green;">INFO</span>:     Uvicorn running on http://0.0.0.0:80 (Press CTRL+C to quit)
```

</div>

////

//// tab | Hypercorn

<div class="termy">

### SIG Cloud Provider

- The cloudstack cloud provider now reports a `Hostname` address type for nodes based on the `local-hostname` metadata key. ([#67719](https://github.com/kubernetes/kubernetes/pull/67719), [@liggitt](https://github.com/liggitt))