contactshandler

  public class Contacts : IHttpHandler, IRequiresSessionState
    {
        public void ProcessRequest(HttpContext context)
        {
            try
            {
                bool flag = false;
                ID id;

                // Get contact data from query string
                string contactIdentifier = context.Request["cid"];
                string contactFirstName = context.Request["firstname"];

                if (!string.IsNullOrEmpty(contactIdentifier))
                {
                    try
                    {
                        // Create a session for the contact - this session will be very short, but 
                        // ensures that you are writing data to the same shared session state as the
                        // currently ongoing session
                        Tracker.Initialize();
                        Tracker.StartTracking();
                        Tracker.Current.Session.Identify(contactIdentifier);
                        
                        var personalFacet = Tracker.Current.Contact.GetFacet<IContactPersonalInfo>("Personal");
                        personalFacet.FirstName = contactFirstName;

                        flag = true;
                    }
                    finally
                    {
                        Tracker.Current.CurrentPage.Cancel();
                        context.Response.Write(flag);
                    }
                }
            }
            finally
            {
                // Abandon session - facet data will be flushed to the xDB at this point, but the updated information will
                // be available to any session that is still ongoing
                HttpContext.Current.Session.Abandon();
            }
        }