Function _stream

src/quart/templating.py:133–157

(
    app: Quart, template: Template, context: dict[str, Any]
)

async def _stream(
    app: Quart, template: Template, context: dict[str, Any]
) -> AsyncIterator[str]:
    await before_render_template.send_async(
        app,
        _sync_wrapper=app.ensure_async,  # type: ignore[arg-type]
        template=template,
        context=context,
    )

    async def generate() -> AsyncIterator[str]:
        async for chunk in template.generate_async(context):
            yield chunk
        await template_rendered.send_async(
            app,
            _sync_wrapper=app.ensure_async,  # type: ignore[arg-type]
            template=template,
            context=context,
        )

    # If a request context is active, keep it while generating.
    if has_request_context():
        return stream_with_context(generate)()
    else:
        return generate()