curl --request POST \
  --url https://{cluster}.voucherify.io/client/v1/publish \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'X-App-Id: <api-key>' \
  --header 'X-App-Token: <api-key>' \
  --data '{
  "campaign": {
    "name": "campaign-name"
  },
  "customer": {
    "source_id": "source-id",
    "Name": "Customer Name",
    "email": "customer email"
  },
  "voucher": "voucher-code",
  "metadata": {
    "key": "value"
  }
}'

{
  "id": "pub_ocaXCa023ayJ3WL1ARxUeKgIvg3JcEGh",
  "object": "publication",
  "created_at": "2022-09-30T16:30:32.924Z",
  "customer_id": "cust_BB6F97yf0XqCe7hxVUV7M4sS",
  "tracking_id": "pub_source_customer_5",
  "metadata": {
    "year": 2022
  },
  "channel": "myown",
  "source_id": "publication_source_ID_10",
  "result": "SUCCESS",
  "customer": {
    "id": "cust_BB6F97yf0XqCe7hxVUV7M4sS",
    "name": "Bob Jones",
    "email": "bob.smith@email.com",
    "source_id": "pub_source_customer_5",
    "metadata": {
      "lang": "en",
      "test": true
    },
    "object": "customer"
  },
  "voucher": {
    "id": "v_6Hy5FdNlu3dP65fJu5BgXma31Sl3rgkf",
    "code": "cEsMn0uA",
    "campaign": "Test - Discount Effect - Amount - Items",
    "campaign_id": "camp_dphuwqH7BOVkgh4JmpDtS32l",
    "category": null,
    "category_id": null,
    "type": "DISCOUNT_VOUCHER",
    "discount": {
      "type": "AMOUNT",
      "amount_off": 300,
      "effect": "APPLY_TO_ITEMS"
    },
    "gift": null,
    "loyalty_card": null,
    "start_date": null,
    "expiration_date": null,
    "validity_timeframe": null,
    "validity_day_of_week": null,
    "active": true,
    "additional_info": null,
    "metadata": {},
    "assets": {
      "qr": {
        "id": "U2FsdGVkX188XVmOotyCyR2j3G8sJR8HzS3DQ+6J1OElPWSmjlEnthuJc7rkc7WIVxjT4pTl1JVVkHEuGXNXdzRik11H8S18HQeQFJFiuwLZ2mzEC2zZitEinyUxtZwhnEHoi0eGAgYCG7iVMNuOQA==",
        "url": "{{internalVoucherifyURL}}"
      },
      "barcode": {
        "id": "U2FsdGVkX18wDd9CcLM0Ef7aBfUSXZUoCQpuNpk4CHGOipbn+wFkfzcIZGBtUlxrI2KsXciCqF+c93AKzsymq5Yw8eEAFF/FK5f94z4/sgzaLDvyBmPCXHuS11Ew9S4ZEMjdTkUJftER2IlxWaCARA==",
        "url": "{{internalVoucherifyURL}}"
      }
    },
    "is_referral_code": false,
    "created_at": "2022-09-30T16:30:32.956Z",
    "updated_at": null,
    "holder_id": "cust_BB6F97yf0XqCe7hxVUV7M4sS",
    "redemption": {
      "quantity": 1,
      "redeemed_quantity": 0,
      "object": "list",
      "url": "/v1/vouchers/cEsMn0uA/redemptions?page=1&limit=10"
    },
    "publish": {
      "object": "list",
      "count": 1,
      "url": "/v1/vouchers/cEsMn0uA/publications?page=1&limit=10"
    },
    "object": "voucher"
  },
  "vouchers_id": [
    "v_6Hy5FdNlu3dP65fJu5BgXma31Sl3rgkf"
  ]
}