try:
    user_id = await get_user()
    data = {
        "author_id": user_id,
        "author_name": params_kw.get('author_name', ''),
        "title": params_kw.get('title', ''),
        "description": params_kw.get('description', ''),
        "media_type": params_kw.get('media_type', 'music'),
        "content_url": params_kw.get('content_url', ''),
        "thumbnail_url": params_kw.get('thumbnail_url', ''),
        "duration": params_kw.get('duration', 0),
        "file_size": params_kw.get('file_size', 0),
        "model_name": params_kw.get('model_name', ''),
        "model_input": params_kw.get('model_input', ''),
        "model_output": params_kw.get('model_output', ''),
        "tags": params_kw.get('tags', ''),
        "category": params_kw.get('category', ''),
        "price": float(params_kw.get('price', 0)),
        "created_at": curDateString()
    }
    result = await create_showcase_post(data)
    return json.dumps(result, ensure_ascii=False)
except Exception as e:
    return json.dumps({"status": "error", "message": str(e)}, ensure_ascii=False)