#region imports
    using System;
    using System.Collections;
    using System.Collections.Generic;
    using System.Linq;
    using System.Globalization;
    using System.Drawing;
    using QuantConnect;
    using QuantConnect.Algorithm.Framework;
    using QuantConnect.Algorithm.Framework.Selection;
    using QuantConnect.Algorithm.Framework.Alphas;
    using QuantConnect.Algorithm.Framework.Portfolio;
    using QuantConnect.Algorithm.Framework.Portfolio.SignalExports;
    using QuantConnect.Algorithm.Framework.Execution;
    using QuantConnect.Algorithm.Framework.Risk;
    using QuantConnect.Algorithm.Selection;
    using QuantConnect.Api;
    using QuantConnect.Parameters;
    using QuantConnect.Benchmarks;
    using QuantConnect.Brokerages;
    using QuantConnect.Configuration;
    using QuantConnect.Util;
    using QuantConnect.Interfaces;
    using QuantConnect.Algorithm;
    using QuantConnect.Indicators;
    using QuantConnect.Data;
    using QuantConnect.Data.Auxiliary;
    using QuantConnect.Data.Consolidators;
    using QuantConnect.Data.Custom;
    using QuantConnect.Data.Custom.IconicTypes;
    using QuantConnect.DataSource;
    using QuantConnect.Data.Fundamental;
    using QuantConnect.Data.Market;
    using QuantConnect.Data.Shortable;
    using QuantConnect.Data.UniverseSelection;
    using QuantConnect.Notifications;
    using QuantConnect.Orders;
    using QuantConnect.Orders.Fees;
    using QuantConnect.Orders.Fills;
    using QuantConnect.Orders.OptionExercise;
    using QuantConnect.Orders.Slippage;
    using QuantConnect.Orders.TimeInForces;
    using QuantConnect.Python;
    using QuantConnect.Scheduling;
    using QuantConnect.Securities;
    using QuantConnect.Securities.Equity;
    using QuantConnect.Securities.Future;
    using QuantConnect.Securities.Option;
    using QuantConnect.Securities.Positions;
    using QuantConnect.Securities.Forex;
    using QuantConnect.Securities.Crypto;
    using QuantConnect.Securities.CryptoFuture;
    using QuantConnect.Securities.Interfaces;
    using QuantConnect.Securities.Volatility;
    using QuantConnect.Storage;
    using QuantConnect.Statistics;
    using QCAlgorithmFramework = QuantConnect.Algorithm.QCAlgorithm;
    using QCAlgorithmFrameworkBridge = QuantConnect.Algorithm.QCAlgorithm;
#endregion
namespace QuantConnect.Algorithm.CSharp
{
    public class AlpacaBrokerageExampleAlgorithm : QCAlgorithm
    {
        private Symbol _symbol;
        
        public override void Initialize()
        {
            SetStartDate(2021, 1, 1);
            SetCash(100000);

            SetBrokerageModel(BrokerageName.Alpaca, AccountType.Margin);
            
            _symbol = AddEquity("SPY", Resolution.Minute).Symbol;

            // Set default order properties
            DefaultOrderProperties.TimeInForce = TimeInForce.Day;
        }

        public override void OnData(Slice data)
        {
            if (Portfolio.Invested)
            {
                return;
            }
            
            // Place an order with the default order properties 
            MarketOrder(_symbol, 1);
            
            // Place an order with new order properties
            var orderProperties = new OrderProperties { TimeInForce = TimeInForce.GoodTilCanceled };
            var ticket = LimitOrder(_symbol, 1, data[_symbol].Price * 0.9m, orderProperties: orderProperties);
            
            // Update the order quantity
            ticket.Cancel();
            ticket = LimitOrder(_symbol, 2, data[_symbol].Price * 0.9m, orderProperties: orderProperties);
            
            // Update the order fields that are not the quantity
            var orderFields = new UpdateOrderFields { 
                LimitPrice = data[_symbol].Price * 1.05m,
                Tag = "Informative order tag"
            };
            var response = ticket.Update(orderFields);
            if (!LiveMode && response.IsSuccess)
            {
                Debug("Order updated successfully");
            }
        }
    }
}