tigeropen-csharp

Build a ContractItem, create the order with a PlaceOrderModel factory method like BuildLimitOrder, then submit it via a TigerRequest<PlaceOrderResponse> with TradeApiService.PLACE_ORDER. Default to a paper account and call PREVIEW_ORDER before any live order.

Get the singleton via PushClient.GetInstance(), configure it with TigerConfig and an IApiComposeCallback implementation, call ConnectAsync, then SubscribeQuote with a HashSet of symbols. Quote updates arrive through the QuoteChange callback.

The SDK targets .NET 10.0 (net10.0) with C# 14 as the default language version. Install it via NuGet with dotnet add package TigerBrokers.OpenAPI.

Execute and ExecuteAsync swallow exceptions and return an error response with Code = 3 instead of throwing. Always check response.IsSuccess() or Code rather than relying on try/catch; only Validate() precondition failures throw TigerApiException.

Use QuoteApiService.OPTION_CHAIN with an OptionChainV3Model, setting ReturnGreekValue = true and Expiry as a long millisecond timestamp converted via DateUtil.ConvertTimestamp. Filters like implied volatility and delta ranges go through OptionChainFilterModel with Range<Double> values.

Yes, via PlaceOrderModel.BuildMultiLegOrder with a list of ContractLeg items and a ComboType such as VERTICAL, STRADDLE, or CALENDAR, submitted through the standard PLACE_ORDER endpoint. There is no separate PLACE_COMBO_ORDER constant.