{* ../../docs_src/sub_applications/tutorial001.py hl[11, 14:16] *}

### Mount the sub-application { #mount-the-sub-application }

In your top-level application, `app`, mount the sub-application, `subapi`.

In this case, it will be mounted at the path `/subapi`:

{* ../../docs_src/sub_applications/tutorial001.py hl[11, 19] *}

# Including WSGI - Flask, Django, others { #including-wsgi-flask-django-others }

You can mount WSGI applications as you saw with [Sub Applications - Mounts](sub-applications.md){.internal-link target=_blank}, [Behind a Proxy](behind-a-proxy.md){.internal-link target=_blank}.

For that, you can use the `WSGIMiddleware` and use it to wrap your WSGI application, for example, Flask, Django, etc.

## Using `WSGIMiddleware` { #using-wsgimiddleware }

        // Process multiple elements
        int count = 1;
        while (transaction.hasMoreElements() && count < 10) {
            transaction.nextElement();
            count++;
        }

        assertTrue(count > 1, "Large data should require multiple elements");
    }

    @Test
    @DisplayName("Test transaction name handling")

      return state.policy.backoffDelayMillis.jitterBy(state.policy.backoffJitterMillis) * 1_000_000
    }
  }

  private fun Long.jitterBy(amount: Int): Long = this + ThreadLocalRandom.current().nextInt(amount * -1, amount)

  class AddressState(
    val address: Address,
    val queue: TaskQueue,
    var policy: AddressPolicy,
  ) {
    /**

   * Returns the number of {@code values} that are {@code true}.
   *
   * @since 16.0
   */
  public static int countTrue(boolean... values) {
    int count = 0;
    for (boolean value : values) {
      if (value) {
        count++;
      }
    }
    return count;
  }

  /**
   * Reverses the elements of {@code array}. This is equivalent to {@code

   * Returns the number of {@code values} that are {@code true}.
   *
   * @since 16.0
   */
  public static int countTrue(boolean... values) {
    int count = 0;
    for (boolean value : values) {
      if (value) {
        count++;
      }
    }
    return count;
  }

  /**
   * Reverses the elements of {@code array}. This is equivalent to {@code

            final byte[] buf = buffer.array();
            int len;
            int amount = 0;
            while ((len = ChannelUtil.read(channel, buffer, amount)) != -1) {
                out.write(buf, 0, len);
                buffer.clear();
                amount += len;
            }
            out.flush();
            return amount;
        } catch (final IOException e) {
            throw new IORuntimeException(e);

  // Java 9. This function is just returns the same result that
  // Arrays.equals(array1, 0, count, array2, 0, count) would. It assumes that both arrays have a
  // length of at least count.
  private static boolean arraysEqual(byte[] array1, byte[] array2, int count) {
    for (int i = 0; i < count; i++) {
      if (array1[i] != array2[i]) {
        return false;
      }
    }
    return true;
  }

 * from this file as necessary.
 *
 * This class also keeps a small buffer of bytes recently read from upstream. This is intended to
 * save a small amount of file I/O and data copying.
 */
class Relay private constructor(
  /**
   * Read/write persistence of the upstream source and its metadata. Its layout is as follows:
   *

* terminals: terminales (plural femenine, as in "las terminales")
* lifespan: lifespan (do not translate to "vida útil" or "tiempo de vida")
* unload: quitar de memoria (do not translate to "descargar")
* mount (noun): mount (do not translate to "montura")
* mount (verb): montar
* statement (as in code statement): statement (do not translate to "declaración" or "sentencia")