throw failures.first()
    }
  }

  private fun testToAscii(
    input: String,
    output: String?,
    comment: String?,
  ) {
    val url = "https://$input/".toHttpUrlOrNull()
    assertThat(url?.host, name = comment ?: input).isEqualTo(output)
  }

Pero hay casos específicos donde es útil obtener el objeto `Request`.

## Usa el objeto `Request` directamente { #use-the-request-object-directly }

Imaginemos que quieres obtener la dirección IP/host del cliente dentro de tu *path operation function*.

Para eso necesitas acceder al request directamente.

{* ../../docs_src/using_request_directly/tutorial001_py310.py hl[1,7:8] *}

    get() = codec.carrier as? RealConnection ?: error("no connection for CONNECT tunnels")

  internal val isCoalescedConnection: Boolean
    get() = finder.routePlanner.address.url.host != codec.carrier.route.address.url.host

  @Throws(IOException::class)
  fun writeRequestHeaders(request: Request) {
    try {
      call.eventListener.requestHeadersStart(call)
      codec.writeRequestHeaders(request)

	entry := NewEntry(deploymentID)

	entry.RemoteHost = handlers.GetSourceIP(r)
	entry.UserAgent = r.UserAgent()
	entry.ReqClaims = reqClaims
	entry.ReqHost = r.Host
	entry.ReqPath = r.URL.Path

	q := r.URL.Query()
	reqQuery := make(map[string]string, len(q))
	for k, v := range q {
		reqQuery[k] = strings.Join(v, ",")
	}
	entry.ReqQuery = reqQuery

### Remotely Inspecting backend data

* [X-Forwarded-Proto](https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/X-Forwarded-Proto)
* [X-Forwarded-Host](https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/X-Forwarded-Host)

///

Nevertheless, as the **application server** doesn't know it is behind a trusted **proxy**, by default, it wouldn't trust those headers.

    @Size(max = 10000)
    public String term;

    /**
     * The related content to be displayed.
     */
    @Required
    @Size(max = 10000)
    public String content;

    /**
     * The virtual host for which this related content applies.
     */
    @Size(max = 1000)
    public String virtualHost;

    /**
     * The sort order for this related content (0-2147483647).
     */
    @Min(value = 0)

    /**
     * The permissions required to view this label type.
     */
    @CustomSize(maxKey = "form.admin.max.input.size")
    public String permissions;

    /**
     * The virtual host for the label type.
     */
    @Size(max = 1000)
    public String virtualHost;

    /**
     * The sort order for displaying this label type.
     */
    @Min(value = 0)
    @Max(value = 2147483647)

But there are specific cases where it's useful to get the `Request` object.

## Use the `Request` object directly { #use-the-request-object-directly }

Let's imagine you want to get the client's IP address/host inside of your *path operation function*.

For that you need to access the request directly.

{* ../../docs_src/using_request_directly/tutorial001_py310.py hl[1,7:8] *}

if [[ `uname -s | grep -P '^MSYS_NT'` ]]; then
  if [[ "$TFCI_GITHUB_ACTIONS" != "true" ]]; then
    # Docker on Windows doesn't support the `host` networking mode, and so
    # port-forwarding is required for the container to detect it's running on GCE.
    export IP_ADDR=$(powershell -command "(Get-NetIPAddress -AddressFamily IPv4 -InterfaceAlias 'vEthernet (nat)').IPAddress")