curl --request GET \
  --url https://api.voucherify.io/v2/loyalties/programs/{programId}/rewards \
  --header 'Authorization: Bearer <token>' \
  --header 'X-App-Id: <api-key>' \
  --header 'X-App-Token: <api-key>'

{
  "data": [
    {
      "reward_id": "<string>",
      "costs": [
        {
          "rules": "<unknown>",
          "spending": [
            {
              "points": 123,
              "card_definition_id": "<string>"
            }
          ]
        }
      ],
      "stock": 123,
      "redeemed": 123,
      "created_at": "2023-11-07T05:31:56Z",
      "object": "<string>"
    }
  ],
  "cursor": {
    "next": "<string>",
    "expires_at": "2023-11-07T05:31:56Z"
  },
  "object": "<string>"
}