Get Countries list

{
  "success": true,
  "data": {
    "countries": [
      {
        "countryName": "Hong Kong,香港",
        "countryURL": "IKEA.com/hk",
        "countryISOCode": "HKG",
        "code": "HK",
        "sites": [
          {
            "language": "English",
            "languageCode": "en",
            "url": "https://www.ikea.cn/cn/en/"
          }
        ]
      }
    ]
  }
}

{
  "success": false,
  "message": "The requested resource was not found for the specified country. Please verify your inputs.",
  "error": "RESOURCE_NOT_FOUND"
}

{
  "success": false,
  "message": "Internal server error. Please try again later.",
  "error": "INTERNAL_ERROR"
}

{
  "success": false,
  "message": "IKEA product search service is currently unavailable. Please try again later.",
  "error": "IKEA_API_ERROR"
}