Retrieve a checkout page

{
  "id": "chk_9f2b1c7a4d",
  "object": "checkout_session",
  "status": "paid",
  "method": "bank_transfer",
  "amount": "3000.00",
  "currency": "NGN",
  "amount_paid": "3000.00",
  "amount_outstanding": "0.00",
  "payments": [
    {
      "amount": "1000.00",
      "currency": "NGN",
      "source": "bank_transfer",
      "source_reference": "dep_4a0f13bb92",
      "provider_reference": "dep_4a0f13bb92",
      "seen_at": "2026-02-04T20:30:41.000Z"
    },
    {
      "amount": "2000.00",
      "currency": "NGN",
      "source": "bank_transfer",
      "source_reference": "dep_5c81f0a3d7",
      "provider_reference": "dep_5c81f0a3d7",
      "seen_at": "2026-02-04T20:31:12.000Z"
    }
  ],
  "expires_at": "2026-02-04T20:59:46.000Z",
  "checkout_url": "https://business.boundlesspay.com/checkout/chk_9f2b1c7a4d",
  "reference": "ORDER-4821",
  "description": "Order #4821",
  "customer": {
    "name": "Ada Nwosu",
    "email": "ada@example.com",
    "phone": null
  },
  "instructions": {
    "type": "bank_transfer",
    "account_number": "9902117364",
    "account_name": "BOUNDLESS/ORDER-4821",
    "bank_name": "Providus Bank",
    "amount": "3000.00",
    "currency": "NGN",
    "expires_at": "2026-02-04T20:59:46.000Z"
  },
  "deposit_id": "dep_5c81f0a3d7",
  "paid_at": "2026-02-04T20:31:12.000Z",
  "success_url": "https://shop.example.com/thanks/4821",
  "cancel_url": null,
  "metadata": {
    "order_id": "4821"
  },
  "created_at": "2026-02-04T20:29:46.000Z"
}