test.cs

[HttpPost]
public bool CreateDummyDocument(string CompanyName) {

    // create a unique ID
    string guid = Guid.NewGuid().ToString();

    using (TXTextControl.ServerTextControl tx = new TXTextControl.ServerTextControl()) {

        // create ServerTextControl and load template
        tx.Create();
        tx.Load("App_Data/vendor.tx", TXTextControl.StreamType.InternalUnicodeFormat);

        using (TXTextControl.DocumentServer.MailMerge mailMerge = new TXTextControl.DocumentServer.MailMerge()) {
            mailMerge.TextComponent = tx;

            // flatten PDF
            mailMerge.FormFieldMergeType = TXTextControl.DocumentServer.FormFieldMergeType.Replace;

            // create dummy merge data with barcode URL
            VendorData data = new VendorData() {
                vendor_name = CompanyName,
                document_qr = Url.Action("View", "Home", new { id = guid }, protocol: Request.Scheme)
            };

            // merge template
            mailMerge.MergeObject(data);
        }

        // save results and store in database
        byte[] results;
        tx.Save(out results, TXTextControl.BinaryStreamType.InternalUnicodeFormat);

        using (MemoryStream ms = new MemoryStream(results)) {

            using (var db = new LiteDatabase("App_Data/MyData.db")) {

                var col = db.GetCollection<Document>("documents");

                var document = new Document {
                    Name = "dummy_" + guid + ".tx",
                    DocumentId = guid,
                    Created = DateTime.Now
                };

                col.Insert(document);
                var fs = db.FileStorage;
                fs.Upload("$/documents/" + "dummy_" + guid + ".tx", "dummy_" + guid + ".tx", ms);
            }

        }

        return true;
    }
}