curl --request PUT \
  --url https://{cluster}.voucherify.io/v1/vouchers/{code} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'X-App-Id: <api-key>' \
  --header 'X-App-Token: <api-key>' \
  --data '{
  "category": "Second",
  "type": "DISCOUNT_VOUCHER",
  "discount": {
    "type": "PERCENT",
    "percent_off": 45,
    "percent_off_formula": "IF(ORDER_AMOUNT > 100;CUSTOMER_METADATA(\"age\");CUSTOMER_METADATA(\"age\") / 2)",
    "amount_limit": 1800,
    "effect": "APPLY_TO_ORDER"
  },
  "start_date": "2020-02-01T00:00:00Z",
  "expiration_date": "2023-12-31T23:59:59Z",
  "validity_timeframe": {
    "duration": "PT2H",
    "interval": "P3D"
  },
  "validity_day_of_week": [
    0,
    1,
    2
  ],
  "active": false,
  "additional_info": "This voucher can be used with other coupons. Please feel free to do so.",
  "metadata": {
    "Season": "Winter"
  }
}'

{
  "id": "v_9PbXndxO3S8xfztwMtIvuMXReonF248m",
  "code": "percent1",
  "campaign": null,
  "campaign_id": null,
  "category": "Second",
  "category_id": "cat_0bb81a481615a37b5e",
  "categories": [
    {
      "id": "cat_0bb81a481615a37b5e",
      "name": "Second",
      "hierarchy": 2,
      "created_at": "2022-09-20T05:58:01.561Z",
      "object": "category"
    }
  ],
  "type": "DISCOUNT_VOUCHER",
  "discount": {
    "type": "PERCENT",
    "amount_limit": 1800,
    "percent_off": 45,
    "percent_off_formula": "IF(ORDER_AMOUNT > 100;CUSTOMER_METADATA(\"age\");CUSTOMER_METADATA(\"age\") / 2)",
    "effect": "APPLY_TO_ORDER"
  },
  "gift": null,
  "loyalty_card": null,
  "start_date": "2020-02-01T00:00:00.000Z",
  "expiration_date": "2023-12-31T23:59:59.000Z",
  "validity_timeframe": {
    "interval": "P3D",
    "duration": "PT2H"
  },
  "validity_day_of_week": [
    0,
    1,
    2
  ],
  "active": false,
  "additional_info": "This voucher can be used with other coupons. Please feel free to do so.",
  "metadata": {
    "Season": "Winter"
  },
  "assets": {
    "qr": {
      "id": "U2FsdGVkX19MPtNCPjoG/pKloolK+BZH/OCIpjYqj+B6IVJJmTYKeBINcB0JioL/tSw3iuK4FvgF8VyDyTfL26IpzbT81DDOnKeFIDUJraQDJiKxWcrG/RCFsVky4olBJ+GZFb9pLpN5gC/rn0pqYw==",
      "url": "{{internalVoucherifyURL}}"
    },
    "barcode": {
      "id": "U2FsdGVkX1/J73XXWgMf2BsVM21kpnFLQak5dpGzThYNTYPT62U6q+5RDlh/CXylkTrhegRnWJw1HA7iehT8iUoV4M4cV0KBdp5WgJ3lXeFZcpX3Mpu0T02PRcYbdCIiSO1kO50Y8Hg/heHcshw22Q==",
      "url": "{{internalVoucherifyURL}}"
    }
  },
  "is_referral_code": false,
  "created_at": "2022-09-19T14:41:30.976Z",
  "updated_at": "2022-09-20T06:00:50.202Z",
  "validation_rules_assignments": {
    "object": "list",
    "data_ref": "data",
    "data": [],
    "total": 0
  },
  "redemption": {
    "quantity": 101,
    "redeemed_quantity": 0,
    "object": "list",
    "url": "/v1/vouchers/percent1/redemptions?page=1&limit=10"
  },
  "publish": {
    "object": "list",
    "count": 0,
    "url": "/v1/vouchers/percent1/publications?page=1&limit=10"
  },
  "object": "voucher"
}