curl --request POST \
  --url https://stagingstores.xoxoday.com/chef/v1/oauth/api \
  --header 'accept: application/json' \
  --header 'authorization: Bearer YOUR_ACCESS_TOKEN' \
  --header 'content-type: application/json' \
  --data '{
    "query": "xoxo_link.mutation.campaignDetails",
    "tag": "xoxo_link",
    "variables": {
      "data": {
        "campaignId": 123
      }
    }
  }'

{
  "data": {
    "campaignDetails": {
      "success": 1,
      "data": [
        {
          "campaignId": 123,
          "campaignName": "Summer Rewards",
          "denomination_value": 10,
          "currency_code": "USD",
          "countryName": "USA",
          "vouchers": [
            {
              "name": "Amazon Gift Card",
              "image": "https://cdn.xoxoday.com/amazon.png"
            },
            {
              "name": "Starbucks Gift Card",
              "image": "https://cdn.xoxoday.com/starbucks.png"
            }
          ]
        }
      ]
    }
  }
}