OutputStreamWriter outputStream = new OutputStreamWriter(new FileOutputStream(destination), outputEncoding)) {
            String html = renderer.render(parser.parseReader(inputStream));
            outputStream.write(html);
        } catch (IOException e) {
            throw UncheckedException.throwAsUncheckedException(e);
        }
    }

render.svg...

render-banner.svg...

    /**
     * Handles the help page request and renders the help interface.
     * This method performs authentication checks and sets up the necessary
     * form parameters and rendering data for the help page display.
     *
     * @return HtmlResponse containing the rendered help page or redirect to login if authentication is required
     */
    @Execute

import org.commonmark.node.Heading;
import org.commonmark.node.Link;
import org.commonmark.node.Node;
import org.commonmark.node.Text;
import org.commonmark.parser.Parser;
import org.commonmark.renderer.text.TextContentRenderer;

/**
 * Extracts text content and metadata from Markdown files.
 * This extractor provides better structured data extraction compared to Tika's generic text extraction.
 *
 * <p>Features:

            - raw_headers
            - render
            - init_headers
            - headers
            - set_cookie
            - delete_cookie

::: fastapi.responses.ORJSONResponse
    options:
        members:
            - charset
            - status_code
            - media_type
            - body
            - background
            - raw_headers
            - render
            - init_headers

     *
     * @param text text
     * @return this
     * @since 2.2
     */
    public Ansi render(final String text) {
        a(new org.jline.jansi.Ansi().render(text).toString());
        return this;
    }

    /**
     * String formats and renders the supplied arguments.  Uses the {@link org.jline.jansi.AnsiRenderer}
     * to generate the ANSI escape sequences.
     *

        TaskProvider<Sync> userguide = tasks.register("userguide", Sync.class, task -> {
            task.setGroup("documentation");
            task.setDescription("Stages rendered user manual documentation.");

            task.from(userguideSinglePageHtml);
            task.from(userguideMultiPage);
            task.into(extension.getUserManual().getStagingRoot().dir("final"));

     */
    public abstract DirectoryProperty getStagingRoot();

    /**
     * The final location to place all rendered documentation.
     */
    public abstract DirectoryProperty getDocumentationRenderedRoot();

    /**
     * The collection of rendered documentation.  This is everything laid out as it would be deployed/packaged.
     */

Возможно, вы захотите попробовать их сервисы и воспользоваться их руководствами:

* <a href="https://docs.render.com/deploy-fastapi?utm_source=deploydoc&utm_medium=referral&utm_campaign=fastapi" class="external-link" target="_blank">Render</a>