public String getMimeType(final String extension) throws IOException {
        return getMimeType(extension, "application/octet-stream");
    }

    /**
     * Returns the MIME type for the given file extension with a custom default.
     *
     * @param extension the file extension to look up (without the dot)
     * @param def the default MIME type to return if no mapping is found

   */
  protected void triggerShutdown() {}

  /**
   * Returns the {@link Executor} that will be used to run this service. Subclasses may override
   * this method to use a custom {@link Executor}, which may configure its worker thread with a
   * specific name, thread group or priority. The returned executor's {@link

하지만 필요한 경우 사용할 수 있습니다. 🤓

///

{* ../../docs_src/dependencies/tutorial008b_an_py39.py hl[18:22,31] *}

예외를 처리하고(또는 추가로 다른 `HTTPException`을 발생시키기 위해) 사용할 수 있는 또 다른 방법은 [사용자 정의 예외 처리기](../handling-errors.md#install-custom-exception-handlers){.internal-link target=_blank}를 생성하는 것 입니다.

## `yield`와 `except`를 사용하는 의존성

## Una aplicación con callbacks { #an-app-with-callbacks }

Veamos todo esto con un ejemplo.

Imagina que desarrollas una aplicación que permite crear facturas.

Estas facturas tendrán un `id`, `title` (opcional), `customer` y `total`.

El usuario de tu API (un desarrollador externo) creará una factura en tu API con un request POST.

Luego tu API (imaginemos):

* Enviará la factura a algún cliente del desarrollador externo.

        if (lookup == null) {
            return customLifecycles != null ? customLifecycles : new HashMap<>();
        }

        // Lifecycles cannot be cached as extensions might add custom lifecycles later in the execution.
        try {
            return registry != null
                    ? registry.stream().collect(Collectors.toMap(lf -> lf.id(), lf -> new Lifecycle(registry, lf)))

        }

        @Override
        public int getPort() {
            return 0;
        }

        @Override
        public URL getURL() {
            try {
                // Create URL with custom protocol handler for SMB
                return new URL(null, urlStr, new jcifs.smb.Handler());
            } catch (Exception e) {
                // Return null if URL creation fails
                return null;

        // Create a custom NetworkExplorer that bypasses resource loading
        networkExplorer = createMockedNetworkExplorer(false, "jCIFS");

        assertDoesNotThrow(() -> networkExplorer.init(servletConfig));
    }

    /**
     * Test servlet initialization with custom JCIFS parameters
     */
    @Test

        record(keyObj, action.name().toLowerCase(Locale.ENGLISH));
    }

    /**
     * Records a custom statistics action for the specified crawler object.
     *
     * @param keyObj the crawler object being tracked
     * @param action the custom action name to record
     */
    public void record(final Object keyObj, final String action) {
        getCacheKey(keyObj).ifPresent(key -> {

        // Add multiple headers
        request.header("Accept", "application/json").header("Content-Type", "application/json").header("Authorization", "Bearer token123")
                .header("X-Custom-Header", "custom-value");

        assertNotNull(request);
    }

    @Test
    public void testGzipSetsCompressionToGzip() {
        CurlRequest request = new CurlRequest(Method.GET, "https://example.com");

     * @param manager the persistent handle manager
     */
    public HandleReconnector(PersistentHandleManager manager) {
        this(manager, 3, 1000);
    }

    /**
     * Create a new handle reconnector with custom settings
     * @param manager the persistent handle manager
     * @param maxRetries maximum number of retry attempts
     * @param retryDelay base retry delay in milliseconds
     */