curl --request GET \
  --url https://api.service.getjusto.com/v3/ecommerce/coupons/{couponId}/codes \
  --header 'Authorization: Bearer <token>'

{
  "success": true,
  "data": {
    "items": [
      {
        "_id": "<string>",
        "code": "<string>",
        "websiteId": "<string>",
        "couponId": "<string>",
        "totalRedemptions": 123,
        "userEmail": "<string>",
        "sentToEmail": "<string>",
        "createdAt": "2020-01-01T00:00:00.000Z",
        "deletedAt": "2020-01-01T00:00:00.000Z"
      }
    ],
    "hasNextPage": true,
    "hasPreviousPage": true,
    "totalPages": 123,
    "totalCount": 123
  }
}