API ドキュメント

/// <summary>
    /// Order payload sent from the client via DefaultHub.SendOrder
    /// </summary>
    public class OrderDetails
    {
        public string Instrument { get; set; }

        /// <summary>
        /// marketBuy | marketSell | limitBuy | limitSell | stopBuy | stopSell
        /// </summary>
        public string OrderType { get; set; }

        public decimal? LimitPrice { get; set; }

        public decimal? StopPrice { get; set; }

        public decimal Quantity { get; set; }

        public string TimeInForce { get; set; }
    }

{
  "instrument": "EURUSD",
  "orderType": "limitBuy",
  "limitPrice": 1.085,
  "stopPrice": null,
  "quantity": 1,
  "timeInForce": "GTC"
}