Retrieve checkout session

GET /public/checkout/:reference

curl https://api.oyapasteaza.com/public/checkout/ch_Fb8z7rX8r9w2

{
  "status": true,
  "message": "Checkout session retrieved successfully.",
  "data": {
    "reference": "ch_Fb8z7rX8r9w2",
    "merchant": {
      "id": "123456",
      "displayName": "Acme Stores"
    },
    "amount": 50000,
    "currency": "NGN",
    "description": "Premium subscription",
    "customer": {
      "name": "John Doe",
      "email": "john@example.com"
    },
    "paymentMethods": [
      {
        "code": "bank_transfer",
        "label": "Bank Transfer",
        "enabled": true,
        "available": true,
        "status": "available"
      },
      {
        "code": "card",
        "label": "Card",
        "enabled": true,
        "available": false,
        "status": "coming_soon"
      }
    ],
    "status": "pending",
    "expiresAt": "2026-07-22T12:30:00.000Z"
  }
}