合约信息接口
请求url：http://dict.openctp.cn/instruments
url参数：
- types: 可选，商品类型，如stock、bond、fund、futures、option等（注意只有futures是复数），多个值之间用','号隔开，如types=futures,option。
- areas: 可选，国家/地区，如China、USA、UK、Singapore等，多个值之间用','号隔开，如areas=China,USA。
- markets: 可选，交易所列表，如SHFE、CFFEX、SSE、SZSE等，多个值之间用','号隔开，如markets=SHFE,CFFEX。
- products: 可选，品种列表，如au、rb、TA、IF等，多个值之间用','号隔开，如products=au,rb,IF。
应答：json数据
例：http://dict.openctp.cn/instruments?types=futures&markets=SHFE,CFFEX&products=au,rb,IF,IM
{
"rsp_code": 0,
"rsp_message": "succeed",
"data": [
{
"ExchangeID": "CFFEX", // 交易所ID
"InstrumentID": "IF2505", // 合约ID
"InstrumentName": "股指2505", // 合约名称
"ProductClass": "1", // 商品类别（'1'-期货，'2'-期权，'3'-组合，'8'-股票，'f'-基金,'b'-债券）
"ProductID": "IF", // 品种ID
"VolumeMultiple": 300, // 合约乘数
"PriceTick": 0.2, // 最小变动价位
"LongMarginRatioByMoney": 0.12, // 做多保证金率
"ShortMarginRatioByMoney": 0.12, // 做空保证金率
"LongMarginRatioByVolume": 0, // 做多保证金/手
"ShortMarginRatioByVolume": 0, // 做空保证金/手
"OpenRatioByMoney": 0.0000238, // 开仓手续费率
"OpenRatioByVolume": 0.01, // 开仓手续费/手
"CloseRatioByMoney": 0.0000238, // 平仓手续费率
"CloseRatioByVolume": 0.01, // 平仓手续费/手
"CloseTodayRatioByMoney": 0.0002308, // 平今手续费
"CloseTodayRatioByVolume": 0.01, // 平今手续费/手
"DeliveryYear": 2025, // 交割年份
"DeliveryMonth": 5, // 交割月份
"OpenDate": "2025-03-24", // 上市日期
"ExpireDate": "2025-05-16", // 最后交易日
"DeliveryDate": "2025-05-16", // 交割日
"UnderlyingInstrID": "IF", // 标的合约ID
"UnderlyingMultiple": 1, // 标的合约乘数
"OptionsType": "", // 期权类型（'1'-认购，'2'-认沽）
"StrikePrice": null, // 行权价
"InstLifePhase": "1" // 合约状态（'0'-未上市，'1'-上市，'2'-停牌，'3'-到期/退市）
},
{
"ExchangeID": "CFFEX",
"InstrumentID": "IM2505",
"InstrumentName": "中证1000股指期货2505",
"ProductClass": "1",
"ProductID": "IM",
"VolumeMultiple": 200,
"PriceTick": 0.2,
"LongMarginRatioByMoney": 0.12,
"ShortMarginRatioByMoney": 0.12,
"LongMarginRatioByVolume": 0,
"ShortMarginRatioByVolume": 0,
"OpenRatioByMoney": 0.0000238,
"OpenRatioByVolume": 0.01,
"CloseRatioByMoney": 0.0000238,
"CloseRatioByVolume": 0.01,
"CloseTodayRatioByMoney": 0.0002308,
"CloseTodayRatioByVolume": 0.01,
"DeliveryYear": 2025,
"DeliveryMonth": 5,
"OpenDate": "2025-03-24",
"ExpireDate": "2025-05-16",
"DeliveryDate": "2025-05-16",
"UnderlyingInstrID": "IM",
"UnderlyingMultiple": 1,
"OptionsType": "",
"StrikePrice": null,
"InstLifePhase": "1"
},
{
"ExchangeID": "SHFE",
"InstrumentID": "au2505",
"InstrumentName": "au2505",
"ProductClass": "1",
"ProductID": "au",
"VolumeMultiple": 1000,
"PriceTick": 0.02,
"LongMarginRatioByMoney": 0.2,
"ShortMarginRatioByMoney": 0.2,
"LongMarginRatioByVolume": 0,
"ShortMarginRatioByVolume": 0,
"OpenRatioByMoney": 8e-7,
"OpenRatioByVolume": 10.01,
"CloseRatioByMoney": 8e-7,
"CloseRatioByVolume": 10.01,
"CloseTodayRatioByMoney": 8e-7,
"CloseTodayRatioByVolume": 0,
"DeliveryYear": 2025,
"DeliveryMonth": 5,
"OpenDate": "2025-02-18",
"ExpireDate": "2025-05-15",
"DeliveryDate": "2025-05-16",
"UnderlyingInstrID": "au",
"UnderlyingMultiple": 1,
"OptionsType": "",
"StrikePrice": null,
"InstLifePhase": "1"
},
{
"ExchangeID": "SHFE",
"InstrumentID": "rb2505",
"InstrumentName": "rb2505",
"ProductClass": "1",
"ProductID": "rb",
"VolumeMultiple": 10,
"PriceTick": 1,
"LongMarginRatioByMoney": 0.2,
"ShortMarginRatioByMoney": 0.2,
"LongMarginRatioByVolume": 0,
"ShortMarginRatioByVolume": 0,
"OpenRatioByMoney": 0.0001008,
"OpenRatioByVolume": 0.01,
"CloseRatioByMoney": 0.0001008,
"CloseRatioByVolume": 0.01,
"CloseTodayRatioByMoney": 0.0001008,
"CloseTodayRatioByVolume": 0.01,
"DeliveryYear": 2025,
"DeliveryMonth": 5,
"OpenDate": "2024-05-16",
"ExpireDate": "2025-05-15",
"DeliveryDate": "2025-05-16",
"UnderlyingInstrID": "rb",
"UnderlyingMultiple": 1,
"OptionsType": "",
"StrikePrice": null,
"InstLifePhase": "1"
}
]
}