Endpoint
Full request/response details live in the API Reference tab.
Usage
order_id— the order’s visual id (required): numeric for letters and telegrams (e.g.2607031),E-prefixed for registered e-mails (e.g.E2607031), or the WhatsApp visual id.type—letter,telegram,emailorwhatsapp. Auto-detected when omitted.format=html— preview the receipt as HTML instead of downloading a PDF (letter, telegram and e-mail receipts only; WhatsApp always returns the expert-report PDF).
A successful response is the binary PDF (or HTML). Error responses use the
standard JSON envelope
{"status", "status_message", "data"} — a 403
means the order does not belong to your account.