Edit and Send the Draft

var client = new RestClient("https://apitest.nilvera.com/earchive/Draft/EditAndSend");
client.Timeout = -1;
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <API KEY>");
request.AddHeader("Content-Type", "application/json");
var body = @"{
"ArchiveInvoice": {
    "InvoiceInfo": {
      "UUID": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
      "TemplateUUID": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
      "TemplateBase64String": "string",
      "InvoiceType": "SATIS",
      "InvoiceSerieOrNumber": "string",
      "IssueDate": "2023-01-10T13:55:49.367Z",
      "CurrencyCode": "string",
      "ExchangeRate": 0,
      "DespatchDocumentReference": [
        {
          "IssueDate": "2023-01-10T13:55:49.367Z",
          "Value": "string"
        }
      ],
      "OrderReference": {
        "IssueDate": "2023-01-10T13:55:49.367Z",
        "Value": "string"
      },
      "OrderReferenceDocument": {
        "ID": "string",
        "IssueDate": "2023-01-10T13:55:49.367Z",
        "DocumentType": "string",
        "DocumentTypeCode": "string",
        "DocumentDescription": "string",
        "Attachment": {
          "Base64Data": "string",
          "MimeCode": "string",
          "FileName": "string"
        }
      },
      "AdditionalDocumentReferences": [
        {
          "ID": "string",
          "IssueDate": "2023-01-10T13:55:49.367Z",
          "DocumentType": "string",
          "DocumentTypeCode": "string",
          "DocumentDescription": "string",
          "Attachment": {
            "Base64Data": "string",
            "MimeCode": "string",
            "FileName": "string"
          }
        }
      ],
      "TaxExemptionReasonInfo": {
        "KDVExemptionReasonCode": "string",
        "OTVExemptionReasonCode": "string",
        "AccommodationTaxExemptionReasonCode": "string"
      },
      "PaymentTermsInfo": {
        "Percent": 0,
        "Amount": 0,
        "Note": "string"
      },
      "PaymentMeansInfo": {
        "Code": "string",
        "ChannelCode": "string",
        "DueDate": "2023-01-10T13:55:49.367Z",
        "PayeeFinancialAccountID": "string",
        "Note": "string"
      },
      "OKCInfo": {
        "ID": "string",
        "IssueDate": "2023-01-10T13:55:49.367Z",
        "Time": "string",
        "ZNo": "string",
        "EndPointID": "string",
        "DocumentDescription": "string"
      },
      "ReturnInvoiceInfo": [
        {
          "InvoiceNumber": "string",
          "IssueDate": "2023-01-10T13:55:49.367Z"
        }
      ],
      "Expenses": [
        {
          "ExpenseType": "HKSKOMISYON",
          "Percent": 0,
          "Amount": 0
        }
      ],
      "ISDespatch": true,
      "SalesPlatform": "NORMAL",
      "SendType": "KAGIT",
      "InternetInfo": {
        "WebSite": "string",
        "PaymentMethod": "string",
        "PaymentMethodName": "string",
        "PaymentDate": "2023-01-10T13:55:49.367Z",
        "TransporterName": "string",
        "TransporterRegisterNumber": "string",
        "TransportDate": "2023-01-10T13:55:49.368Z"
      },
      "AccountingCost": "string",
      "LineExtensionAmount": 0,
      "GeneralKDV1Total": 0,
      "GeneralKDV8Total": 0,
      "GeneralKDV18Total": 0,
      "GeneralAllowanceTotal": 0,
      "PayableAmount": 0,
      "KdvTotal": 0
    },
    "CompanyInfo": {
      "TaxNumber": "string",
      "Name": "string",
      "TaxOffice": "string",
      "PartyIdentifications": [
        {
          "SchemeID": "string",
          "Value": "string"
        }
      ],
      "AgentPartyIdentifications": [
        {
          "SchemeID": "string",
          "Value": "string"
        }
      ],
      "Address": "string",
      "District": "string",
      "City": "string",
      "Country": "string",
      "PostalCode": "string",
      "Phone": "string",
      "Fax": "string",
      "Mail": "string",
      "WebSite": "string"
    },
    "CustomerInfo": {
      "TaxNumber": "string",
      "Name": "string",
      "TaxOffice": "string",
      "PartyIdentifications": [
        {
          "SchemeID": "string",
          "Value": "string"
        }
      ],
      "AgentPartyIdentifications": [
        {
          "SchemeID": "string",
          "Value": "string"
        }
      ],
      "Address": "string",
      "District": "string",
      "City": "string",
      "Country": "string",
      "PostalCode": "string",
      "Phone": "string",
      "Fax": "string",
      "Mail": "string",
      "WebSite": "string"
    },
    "InvoiceLines": [
      {
        "Index": "string",
        "SellerCode": "string",
        "BuyerCode": "string",
        "Name": "string",
        "Description": "string",
        "Quantity": 0,
        "UnitType": "string",
        "Price": 0,
        "AllowanceTotal": 0,
        "KDVPercent": 0,
        "KDVTotal": 0,
        "Taxes": [
          {
            "TaxCode": "string",
            "Total": 0,
            "Percent": 0,
            "ReasonCode": "string",
            "ReasonDesc": "string"
          }
        ],
        "ManufacturerCode": "string",
        "BrandName": "string",
        "ModelName": "string",
        "Note": "string",
        "OzelMatrahReason": "string",
        "OzelMatrahTotal": 0,
        "AdditionalItemIdentification": {
          "TagNumber": "string",
          "OwnerName": "string",
          "OwnerTaxNumber": "string"
        }
      }
    ],
    "Notes": [
      "string"
    ]
  }
}";
request.AddParameter("application/json", body,  ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
Console.WriteLine(response.Content);