Connect to Astra with the DataStax C# driver

AstraConnect.cs

using Cassandra;
using System.Linq;
using System;

namespace QuickStart
{
    class AstraConnect
    {
        static void Main(string[] args)
        {

	    Cluster cluster = Cluster.Builder()
		    .WithCloudSecureConnectionBundle(@"C:\path\to\secure-connect-database_name.zip")
		    .WithCredentials("username", "password")
		    .Build();

            ISession session = cluster.Connect("demo");

			var statement = new SimpleStatement("CREATE TABLE IF NOT EXISTS demo.users ("
									+ " lastname text PRIMARY KEY,"
									+ " age int,"
									+ " city text,"
									+ " email text," +
									" firstname text)");

	   session.Execute(statement);

			SetUser(session, "Jones", 35, "Austin", "bob@example.com", "Bob");

            GetUser(session, "Jones");

            UpdateUser(session, 36, "Jones");

            GetUser(session, "Jones");

            DeleteUser(session, "Jones");

            cluster.Dispose();

        }

	private static void SetUser(ISession session, String lastname, int age, String city, String email, String firstname)
	{

		//TO DO: execute SimpleStatement that inserts one user into the table
		var statement = new SimpleStatement("INSERT INTO users (lastname, age, city, email, firstname) VALUES (?,?,?,?,?)", lastname, age, city, email, firstname);

		session.Execute(statement);

	}

	private static void GetUser(ISession session, String lastname)
	{

		//TO DO: execute SimpleStatement that retrieves one user from the table
		//TO DO: print firstname and age of user
		var statement = new SimpleStatement("SELECT * FROM users WHERE lastname = :lastname", lastname);

		var result = session.Execute(statement).First();
		Console.WriteLine("{0} {1}", result["firstname"], result["age"]);

	}

	private static void UpdateUser(ISession session, int age, String lastname)
	{

		//TO DO: execute PreparedStatement that updates the age of one user
		PreparedStatement prepared = session.Prepare("UPDATE users SET age =? WHERE lastname = ?");
		BoundStatement bound = prepared.Bind(age, lastname);
		session.Execute(bound);
	}

	private static void DeleteUser(ISession session, String lastname)
	{

		PreparedStatement prepared = session.Prepare("DELETE FROM users WHERE lastname = ?");
		BoundStatement bound = prepared.Bind(lastname);
		session.Execute(bound);
	}
	
   }
}