curl -X PATCH -H "X-API-KEY: your_api_key" \
  -H "Content-Type: application/json" \
  -d '{ "status": "checked_in" }' \
  https://www.gomry.com/api/v1/events/AbCdEfGhIjKlMnOpQrSt/attendees/tkt_AAA

# 1. Reject a paid attendee: answers 409 refund_confirmation_required with the quote, and changes nothing.
curl -X PATCH -H "X-API-KEY: your_api_key" \
  -H "Content-Type: application/json" \
  -d '{ "status": "rejected", "notify_guest": true }' \
  https://www.gomry.com/api/v1/events/AbCdEfGhIjKlMnOpQrSt/attendees/tkt_AAA

# 2. Resend the same request, confirming the quote: refunds the attendee and rejects them.
curl -X PATCH -H "X-API-KEY: your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
    "status": "rejected",
    "notify_guest": true,
    "refund": { "confirm": true, "quote_id": "9f2c4e71a0b84d3c8e5f6a7b1c2d3e4f" }
  }' \
  https://www.gomry.com/api/v1/events/AbCdEfGhIjKlMnOpQrSt/attendees/tkt_AAA

const url = "https://www.gomry.com/api/v1/events/AbCdEfGhIjKlMnOpQrSt/attendees/tkt_AAA";
const headers = { "X-API-KEY": "your_api_key", "Content-Type": "application/json" };
const change = { status: "rejected", notify_guest: true };

let response = await fetch(url, { method: "PATCH", headers, body: JSON.stringify(change) });
if (response.status === 409) {
  const body = await response.json();
  if (body.error === "refund_confirmation_required") {
    // Show body.quote to the organizer, then confirm it.
    response = await fetch(url, {
      method: "PATCH",
      headers,
      body: JSON.stringify({
        ...change,
        refund: { confirm: true, quote_id: body.quote.quote_id },
      }),
    });
  }
}
const { data } = await response.json();

{
  "error": "refund_confirmation_required",
  "message": "This attendee paid. The change refunds them in full and your organization covers the fees. Resend with `refund: { confirm: true, quote_id }` to go ahead.",
  "quote": {
    "quote_id": "9f2c4e71a0b84d3c8e5f6a7b1c2d3e4f",
    "buyers": 1,
    "tickets": 1,
    "totals": [
      { "currency": "eur", "refund": 53.4, "fees_covered": 3.4 }
    ],
    "orders": [
      {
        "payment_id": "pay_XYZ",
        "currency": "eur",
        "refund_amount": 53.4,
        "fees_covered": 3.4,
        "attendee_ids": ["tkt_AAA"]
      }
    ],
    "balances": [
      {
        "space_id": "Qm3kV8pLx2NcR7tYw9Ab",
        "currency": "eur",
        "balance": 420,
        "refund_total": 53.4,
        "shortfall": 0
      }
    ],
    "not_refunded": { "paid_offline": 0, "resale": 0, "bundle": 0, "credits": 0 }
  }
}

{
  "data": {
    "id": "tkt_AAA",
    "status": "rejected",
    "ticket_class_id": "prod_AbCdEf",
    "ticket_class_name": "Early Bird",
    "first_name": "Jane",
    "last_name": "Doe",
    "email": "jane@example.com",
    "created_at": "2026-05-26T12:00:00.000Z",
    "updated_at": "2026-10-21T09:30:00.000Z"
  }
}

{
  "error": "insufficient_balance",
  "message": "Your balance is too low to cover the refund. Add funds from the Gomry dashboard (Payments, Add funds), then resend. Deposits cannot be made with an API key.",
  "quote": {
    "quote_id": "9f2c4e71a0b84d3c8e5f6a7b1c2d3e4f",
    "buyers": 1,
    "tickets": 1,
    "totals": [{ "currency": "eur", "refund": 53.4, "fees_covered": 3.4 }],
    "orders": [
      {
        "payment_id": "pay_XYZ",
        "currency": "eur",
        "refund_amount": 53.4,
        "fees_covered": 3.4,
        "attendee_ids": ["tkt_AAA"]
      }
    ],
    "balances": [
      {
        "space_id": "Qm3kV8pLx2NcR7tYw9Ab",
        "currency": "eur",
        "balance": 20,
        "refund_total": 53.4,
        "shortfall": 33.4
      }
    ],
    "not_refunded": { "paid_offline": 0, "resale": 0, "bundle": 0, "credits": 0 }
  }
}