ppid = params_kw.get('ppid')
if not ppid:
    return json.dumps({"status": "error", "message": "ppid parameter required"}, ensure_ascii=False)

try:
    result = await get_pricing_display(ppid)
    return json.dumps({"status": "ok", "data": result}, ensure_ascii=False, default=str)
except Exception as e:
    exception(f'get_pricing_display({ppid}) failed: {e}\n{format_exc()}')
    return json.dumps({"status": "error", "message": str(e)}, ensure_ascii=False)