mongo connect, update

gistfile1.txt

            var connectionString = ConfigurationManager.AppSettings["MONGO_URI"];

            if (connectionString != null)
            {

                var hostName = Regex.Replace(connectionString, "^(.*)/(.*)$", "$1");
                var dbName = Regex.Replace(connectionString, "^(.*)/(.*)$", "$2");

                var server = MongoServer.Create(hostName);

                server.Connect();
                var db = server.GetDatabase(dbName);

                var trade = ConvertTrade2StorageModel(Trade);

                var coll = db.GetCollection<Trade>("trades");
                coll.Save(trade);
                server.Disconnect();
            }

  public class Trade
    {
        [BsonRepresentation(BsonType.ObjectId)]
        public string _id { get; set; }