上記の例ではバイト列をストリームしましたが、レスポンスに `Content-Type` ヘッダがないため、クライアントは受け取るデータの種類を認識できませんでした。

`StreamingResponse` を継承したカスタムクラスを作成し、ストリームするデータに応じて `Content-Type` ヘッダを設定できます。

例えば、`media_type` 属性で `Content-Type` を `image/png` に設定する `PNGStreamingResponse` を作成できます:

{* ../../docs_src/stream_data/tutorial002_py310.py ln[6,19:20] hl[20] *}

その後、path operation 関数で `response_class=PNGStreamingResponse` としてこの新しいクラスを使用できます:

Mais comme vous avez aussi passé `HTMLResponse` dans `response_class`, **FastAPI** saura comment la documenter dans OpenAPI et les documents interactifs comme HTML avec `text/html` :

<img src="/img/tutorial/custom-response/image01.png">

## Réponses disponibles { #available-responses }

Voici certaines des réponses disponibles.

Gardez à l'esprit que vous pouvez utiliser `Response` pour renvoyer autre chose, ou même créer une sous-classe personnalisée.

     * @param id The ID of the kuromoji item.
     * @return The HTML response.
     */
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse details(final String dictId, final int crudMode, final long id) {
        verifyCrudMode(crudMode, CrudMode.DETAILS, dictId);
        saveToken();
        return asDetailsHtml().useForm(EditForm.class, op -> {
            op.setup(form -> {

            return null;
        }
    }

    // Test configuration class extending FessConfig.SimpleImpl
    private static class TestFessConfig extends FessConfig.SimpleImpl {
        private static final long serialVersionUID = 1L;
    }

        when(mockDelegate.getSoTimeout()).thenReturn(35000);
        when(mockDelegate.getConnTimeout()).thenReturn(35000);
        when(mockDelegate.getMaxMpxCount()).thenReturn(10);

        // When
        long dfsTtl = delegatingConfig.getDfsTtl();
        int responseTimeout = delegatingConfig.getResponseTimeout();
        int socketTimeout = delegatingConfig.getSoTimeout();
        int connTimeout = delegatingConfig.getConnTimeout();

        @NullAndEmptySource
        @ValueSource(strings = { "Simple ASCII", "Special chars: !@#$%^&*()", "Unicode: ñöt ascii ℃", "Mixed: ASCII + 中文 + Русский",
                "Emojis: 🎉🌟💻", "Very long string with multiple words and various characters 1234567890" })
        void testGetBytesWithVariousInputs(String input) {
            // When
            byte[] result = Strings.getBytes(input, StandardCharsets.UTF_8);

class GenerateJsonSchema(_GenerateJsonSchema):
    # TODO: remove when this is merged (or equivalent): https://github.com/pydantic/pydantic/pull/12841
    # and dropping support for any version of Pydantic before that one (so, in a very long time)
    def bytes_schema(self, schema: CoreSchema) -> JsonSchemaValue:
        json_schema = {"type": "string", "contentMediaType": "application/octet-stream"}
        bytes_mode = (
            self._config.ser_json_bytes

                    "CrawlerClient is null for URL: " + url + ". Unable to access the document without a crawler client.");
        }

        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        final long startTime = systemHelper.getCurrentTimeAsLong();
        try (final ResponseData responseData = client.execute(RequestDataBuilder.newRequestData().get().url(url).build())) {
            if (responseData.getRedirectLocation() != null) {

        // Setup mock file with minimal required behavior
        String content = "File content for testing";
        byte[] contentBytes = content.getBytes();

        when(smbFile.length()).thenReturn((long) contentBytes.length);
        when(smbFile.getInputStream()).thenReturn(new ByteArrayInputStream(contentBytes));

        // Use spy to avoid actual SMB operations
        NetworkExplorer spyExplorer = spy(networkExplorer);

        // than expected, so we're not asserting null for HOST1
    }

    @Test
    void testPopulateWithLongHostname() throws Exception {
        // Create a temporary lmhosts file with long hostname
        String longHostname = "VERYLONGHOSTNAMETHATSHOULDSTILLWORK";
        File lmhostsFile = tempDir.resolve("lmhosts_long").toFile();
        try (FileWriter writer = new FileWriter(lmhostsFile)) {