After activating the environment, install the required packages:

//// tab | `pip`

<div class="termy">

```console
$ pip install -r requirements.txt

---> 100%
```

</div>

////

//// tab | `uv`

If you have <a href="https://github.com/astral-sh/uv" class="external-link" target="_blank">`uv`</a>:

<div class="termy">

```console
$ uv pip install -r requirements.txt

---> 100%
```

</div>

And open the docs at <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>.

You will see the automatic API docs for the main app, including only its own _path operations_:

<img src="/img/tutorial/sub-applications/image01.png">

And then, open the docs for the sub-application, at <a href="http://127.0.0.1:8000/subapi/docs" class="external-link" target="_blank">http://127.0.0.1:8000/subapi/docs</a>.

	select {
	case result := <-listener.acceptCh:
		if result.err != nil {
			return nil, result.err
		}
		return deadlineconn.New(result.conn).WithReadDeadline(listener.opts.IdleTimeout).WithWriteDeadline(listener.opts.IdleTimeout), result.err
	case <-listener.ctxDoneCh:
	}
	return nil, syscall.EINVAL
}

// Close - closes underneath all TCP listeners.

 *
 */
public class AdminFileauthAction extends FessAdminAction {

    /**
     * Default constructor.
     */
    public AdminFileauthAction() {
        super();
    }

    /** The role name for file authentication administration. */
    public static final String ROLE = "admin-fileauth";

    /** Logger for this class. */

  override fun sameHostAndPort(url: HttpUrl): Boolean = url.host == address.url.host && url.port == address.url.port

  override fun close() {
    factory.close()
  }

  inner class FakePlan(
    val id: Int,
  ) : RoutePlanner.Plan {
    var planningThrowable: Throwable? = null
    var canceled = false
    var connectState = ConnectState.READY
    val connection =

    }

    @Override
    public void close() throws Exception {
        ArrayList<Exception> exceptions = new ArrayList<>();
        for (CommandRegistry commandRegistry : commandRegistries) {
            if (commandRegistry instanceof AutoCloseable closeable) {
                try {
                    closeable.close();
                } catch (Exception e) {
                    exceptions.add(e);

/**
 * Utility class for Thread class
 *
 * @author shinsuke
 *
 */
public abstract class ThreadUtil {

    private static final Logger logger = Logger.getLogger(ThreadUtil.class);

    /**
     * Do not instantiate.
     */
    protected ThreadUtil() {
    }

    /**
     * Causes the currently executing thread to sleep (temporarily cease execution) for the specified number of milliseconds.

/**
 * <strong>Warning:</strong> This is an internal utility class that is only public for technical reasons, it is not part
 * of the public API. In particular, this class can be changed or deleted without prior notice.
 *
 * @deprecated since 4.0.0, use {@code maven-api-impl} jar instead
 */
@Deprecated(since = "4.0.0")
public class ArtifactDescriptorUtils {

    public static Artifact toPomArtifact(Artifact artifact) {

Nesse caso, você pode retornar o caminho do arquivo diretamente da sua *função de operação de rota*.

## Classe de resposta personalizada { #custom-response-class }

Você pode criar sua própria classe de resposta, herdando de `Response` e usando essa nova classe.

 *
 * This command is used to close a search handle that was
 * opened by a Trans2 Find First2 request.
 */
public class SmbComFindClose2 extends ServerMessageBlock {

    private final int sid;

    /**
     * Creates a new SMB1 find close request to close a search handle.
     *
     * @param config the CIFS configuration
     * @param sid the search identifier to close
     */