Simple XmlDocument example with Couchbase on .Net

Program.cs

using System;
using System.IO;
using System.Threading;
using System.Xml;
using Couchbase;

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
            Cluster cluster = new Cluster();
            XmlDocument xmlDoc = new XmlDocument();
            XmlNode rootNode = xmlDoc.CreateElement("users");
            xmlDoc.AppendChild(rootNode);

            XmlNode userNode = xmlDoc.CreateElement("user");
            XmlAttribute attribute = xmlDoc.CreateAttribute("age");
            attribute.Value = "42";
            userNode.Attributes.Append(attribute);
            userNode.InnerText = "Harish";
            rootNode.AppendChild(userNode);
            using (var stringWriter = new StringWriter())
            {
                using (var xmlTextWriter = XmlWriter.Create(stringWriter))
                {
                    xmlDoc.WriteTo(xmlTextWriter);
                    xmlTextWriter.Flush();
                    var xmlString = stringWriter.GetStringBuilder().ToString();
                    Console.WriteLine("XML Document that we put in:");
                    Console.WriteLine(xmlString);
                    using (var bucket = cluster.OpenBucket())
                    {
                        var document = new Document<XmlDocument>();
                        document.Id = "FooBarBaz";
                        document.Content = xmlDoc;

                        var upsert = bucket.Upsert(document);
                        if (!upsert.Success)
                        {
                            Console.WriteLine("failed to insert document");
                            Environment.Exit(1);
                        }                        
                    }
                }
            }

            using (var bucket = cluster.OpenBucket())
            {
                var document = bucket.GetDocument<XmlDocument>("FooBarBaz");
                var xmlDocRead = document.Content;                
                using (var stringWriter = new StringWriter())
                {
                    using (var xmlTextWriter = XmlWriter.Create(stringWriter))
                    {
                        xmlDocRead.WriteTo(xmlTextWriter);
                        xmlTextWriter.Flush();
                        var xmlString = stringWriter.GetStringBuilder().ToString();
                        Console.WriteLine("XML Document that we read back out:");
                        Console.WriteLine(xmlString);
                    }
                }                
            }
            Thread.Sleep(2000);
            Environment.Exit(0);
        }
    }
}