Sample scripts

// This sample Custom export script shows how to send an authorization request for OAuth 2.0 Resource Owner Password Flow, receive the token,
// and then send export results to the external system in JSON format

// Prepare the key-value body for the authorization request (parameters and their values may be different). The corresponding environment variable should be created beforehand.
var authDataContent = {};
authDataContent.grant_type = "password";
authDataContent.scope = "openid permissions";

// Pass sensitive data using environment variables. The corresponding variables should be created beforehand.
authDataContent.client_id = Context.GetSecret("client_id_secretName");
authDataContent.client_secret = Context.GetSecret("client_secret_secretName");
authDataContent.password = Context.GetSecret("password_secretName");
authDataContent.username = Context.GetSecret("username_secretName");

// create the request and send the data
var request = Context.CreateHttpRequest();
request.Url = "https://my_auth_service.com/auth2/connect/token"
request.Method = "POST";

// create content data for the authorization request
request.SetUrlFormEncodedContent(authDataContent);
request.Send();
var authResponseObject = JSON.parse(request.ResponseText);

// get all exports from the document
var exports = Context.Transaction.Documents[0].Exports;

// select the JSON export result
var extractedDataExportResult = exports.find(element => element.ExportFormat === ExportFormat.Json);
var pdfExportResult = exports.find(element => element.ExportFormat === ExportFormat.Pdf);

// Create content data for the request
var multiPartRequest = Context.CreateMultipartFormDataRequest();
multiPartRequest.Url = "https://my_service.com/api/v1.0/process_method"
multiPartRequest.Method = "POST";
multiPartRequest.AuthToken = authResponseObject.access_token;
multiPartRequest.AuthScheme = "Bearer";

// add extracted data to the export result
multiPartRequest.AppendStringContent(extractedDataExportResult.ToJson(), "jsonData");

// add the exported PDF
multiPartRequest.AppendFileContent(pdfExportResult, "binaryData");

// send a request to the service
multiPartRequest.Send();

// Get a deserialised response result
var responseObject = JSON.parse(multiPartRequest.ResponseText);

// This sample Custom export script shows how to send a file to Dropbox
// and set the file name using value of extracted data field.

// Get the document export result
var exports = Context.Transaction.Documents[0].Exports;
var extractedDataExportResult = exports.find(element => element.ExportFormat === ExportFormat.Json);

// Get the access token to the DropBox API (https://developers.dropbox.com/en-us/oauth-guide). The corresponding environment variable should be created beforehand.
var token = Context.GetSecret("access_token_secretName");

// Get "Invoice Number" from the extracted data
var invoiceNumberField = Context.Transaction.Documents[0].GetField("Invoice Number");
var invoiceNumber = invoiceNumberField.Value;

// Create the result file name
var jsonFileName = `ExtractedData_${invoiceNumber}.json`;

// Send the JSON file with the extracted data to DropBox
var httpRequest = Context.CreateHttpRequest();
httpRequest.Url = "https://content.dropboxapi.com/2/files/upload"
httpRequest.Method = "POST";
httpRequest.AuthScheme = "Bearer";
httpRequest.AuthToken = token;
httpRequest.SetHeader("Dropbox-API-Arg", `{"path": "/Files/${jsonFileName}", "mode": "add", "autorename": true, "mute": false, "strict_conflict": false}`);
httpRequest.SetFileContent(extractedDataExportResult, "application/octet-stream");
httpRequest.Send();

// This sample Custom activity script shows how to modify an existing field 
// and create a new field value based on the results of an external call.

// Get all exports from the document
var exports = Context.Transaction.Documents[0].Exports;

// Get the JSON export result from the exports
var extractedDataExportResult = exports.find(element => element.ExportFormat === ExportFormat.Json);

// Get the PDF export result from the exports
var pdfExportResult = exports.find(element => element.ExportFormat === ExportFormat.Pdf);

// Create an HTTP request and specify required request properties
var multipartFormDataRequest = Context.CreateMultipartFormDataRequest();
multipartFormDataRequest.Url = "http://my_service/api/v1.0/apimethod/"
multipartFormDataRequest.Method = "POST";

// Add extracted data from the JSON export result to the request
multipartFormDataRequest.AppendStringContent(extractedDataExportResult.ToJson(), "jsonData");
// Add the PDF from the export results to the request
multipartFormDataRequest.AppendFileContent(pdfExportResult, "binaryData");

// Set the timeout for the HTTP request to be completed (in minutes).
// By default, the timeout is set to 1 minute.
multipartFormDataRequest.Timeout = 1;

// Send a request to the service
multipartFormDataRequest.Send();

// Get a response result
var newJsonDataObject = JSON.parse(multipartFormDataRequest.ResponseText);

// Assuming such a JSON was obtained in the response result:
/* {
    "DocumentData": {
        "Fields": {
            "InvoiceNumber": "706-222-3151",
            "InvoiceDate": "15.05.2020",
            "PurchaseOrder": [
                {
                    "OrderNumber": "25646788",
                    "Total": "540.54"
                },
                {
                    "OrderNumber": "24516684",
                    "Total": "138.43"
                }
            ]
        }
    }
}*/

// Change the value of an existing Vantage document field based on data received from an external call
var document = Context.Transaction.Documents[0];
var invoiceNumber = document.GetField("Invoice Number");
if (invoiceNumber.InstanceId === undefined || invoiceNumber.InstanceId === null)
    invoiceNumber.AddInstance();
invoiceNumber.Value = newJsonDataObject.DocumentData.Fields.InvoiceNumber;

// Add new Vantage document field values based on data received from an external call
var poOrder = Context.Transaction.Documents[0].GetField("Purchase Order");
let orderNumberFieldId = document.GetField("Purchase Order/Order Number").Id;
let totalFieldId = document.GetField("Purchase Order/Total").Id;
newJsonDataObject.DocumentData.Fields.PurchaseOrder.forEach(function (elem) {
    var newOrder = poOrder.AddInstance();
    var orderNumber = newOrder.Children.find(x => x.Id === orderNumberFieldId);
    orderNumber.Value = elem.OrderNumber;
    var total = newOrder.Children.find(x => x.Id === totalFieldId);
    total.Value = elem.Total;
});

// Get the first document in a transaction
var document = Context.Transaction.Documents[0];
var descriptionFieldId = document.GetField("Line Items/Description").Id;

// Get the table object
var table = document.GetField("Line Items");

for (var i = 0; i < table.Instances.length; i++) {
  // Get the 'Description' column object for each table row and write its values to the transaction event log
  var columnDescription = table.Instances[i].Children.find(x => x.Id === descriptionFieldId);
  Context.LogMessage("Description. Row " + i + ": " + columnDescription.Value);
}

// Get the first document in a transaction
var document = Context.Transaction.Documents[0];

// Get the table object
var table = document.GetField("Line Items");

// Write all table data to the transaction event log
for (var i = 0; i < table.Instances.length; i++) {
    for (var j = 0; j < table.Instances[i].Children.length; j++) {
        Context.LogMessage("Table row "+i+". Column "+table.Instances[i].Children[j].Name+": "+table.Instances[i].Children[j].Value);
    }
}

// Get the first document in a transaction
var document = Context.Transaction.Documents[0];

// Get the table object
var table = document.GetField("Line Items");
var descriptionFieldId = document.GetField("Line Items/Description").Id;
var quantityFieldId = document.GetField("Line Items/Quantity").Id;
var tableRowCount = table.Instances.length;

// Create function to add one table row and set values for Description and Quantity columns
function addRow(valueDescription, valueQuantity, index) {
    table.AddInstance();
    var columnDescription = table.Instances[index].Children.find(x => x.Id === descriptionFieldId);
    columnDescription.Value = valueDescription;
    var columnQuantity = table.Instances[index].Children.find(x => x.Id === quantityFieldId);
    columnQuantity.Value = valueQuantity;
}

// Add three rows and set values
addRow("49910 - Gloves or mittens, NOI, in boxes", 4, tableRowCount++);
addRow("15560 - Bulk, NOI, inflated", 42, tableRowCount++);
addRow("15520 - Athletic or Sporting Goods, NOI", 24, tableRowCount++);

// Get the first document in a transaction
var document = Context.Transaction.Documents[0];

// Get the table object
var table = document.GetField("Line Items");
var indexCount = table.Instances.length - 1;

// Delete all rows by their indexes
for (var i = indexCount; i >= 0 ; i--) {
  table.Instances[i].Remove();
}

// Or you can delete the entire table
table.Remove();

// Get the first document in a transaction
var document = Context.Transaction.Documents[0];

// Get the repeating field object
var rField = document.GetField("First Name");

// Check if this field is repeating
if (rField.IsRepeatable) {
    // Delete the last instance of this field
    if (rField.Instances.length >= 1) {
        rField.Instances[rField.Instances.length-1].Remove();
    }  
}
else {
    Context.LogMessage(rField.Name + " is not repeating.");
}

// This sample Custom export script shows how to create a JSON string
// using extracted Invoice US fields values and send it to an external endpoint.
// Get the first document in the transaction.
var document = Context.Transaction.Documents[0];

// Create a JSON object and set its key/value pairs.
var extractedValues = {};
extractedValues.Total = document.GetField("Total").Value;
extractedValues.Currency = document.GetField("Currency").Value;
extractedValues.Date = document.GetField("Invoice Date").Value;

// Get repeating field values and set them as array JSON values.
extractedValues.PurchaseOrderNumber = [];
var poGroup = document.GetField("Purchase Order");
var orderNumberFieldId = document.GetField("Purchase Order/Order Number").Id;
for (var i = 0; i < poGroup.Instances.length; i++) {
  var poNumber = poGroup.Instances[i].Children.find(x => x.Id === orderNumberFieldId);
  extractedValues.PurchaseOrderNumber.push(poNumber.Value);
}

// The received JSON file is of the following format:
/* {
   "Total": 1819.14,
   "Currency": "USD",
   "Date": "2019-05-23T00:00:00.000Z",
   "PurchaseOrderNumber": [
      "012345678",
      "4500123466"
   ]
}*/

// Send a multipart/form-data request with the JSON created previously as the string content of that request.
var httpRequest = Context.CreateMultipartFormDataRequest();
httpRequest.Method = "POST";
httpRequest.Url = "https://external-endpoint.com/api/v1.0/tasks/1495c913-17bb-48d4-8041-a240e05ca9a4/process";
httpRequest.AppendStringContent(JSON.stringify(extractedValues), "jsonData");
httpRequest.Send();

// Get the name of the source file and set it as the value of the specified field ("MyField")
Context.Transaction.Documents.forEach( doc => {
    // For Scanning Station, the source file name is put into a registration parameter
    var param = doc.RegistrationParameters["SourceFileName"]; 
    doc.GetField("MyField").Value = param != null ?
        param.Value : doc.SourceFiles[0].FileName;
});