vnpy/examples/VnTrader/ST_setting.json

[
    {
        "name": "m.09-01",

        "activeLeg": 
            {
                "vtSymbol": "m1709",
                "ratio": 1,
                "multiplier": 1.0,
                "payup": 2
            },

        "passiveLegs": [
            {
                "vtSymbol": "m1801",
                "ratio": -1,
                "multiplier": -1.0,
                "payup": 2
            }
        ]
    },

    {
        "name": "IF.07-09",

        "activeLeg": 
            {
                "vtSymbol": "IF1707",
                "ratio": 1,
                "multiplier": 1.0,
                "payup": 2
            },

        "passiveLegs": [
            {
                "vtSymbol": "IF1709",
                "ratio": -1,
                "multiplier": -1.0,
                "payup": 2
            }
        ]
    },

    {
        "name": "IH.07-09",

        "activeLeg": 
            {
                "vtSymbol": "IH1707",
                "ratio": 1,
                "multiplier": 1.0,
                "payup": 2
            },

        "passiveLegs": [
            {
                "vtSymbol": "IH1709",
                "ratio": -1,
                "multiplier": -1.0,
                "payup": 2
            }
        ]
    },

    {
        "name": "IC.07-09",

        "activeLeg": 
            {
                "vtSymbol": "IC1707",
                "ratio": 1,
                "multiplier": 1.0,
                "payup": 2
            },

        "passiveLegs": [
            {
                "vtSymbol": "IC1709",
                "ratio": -1,
                "multiplier": -1.0,
                "payup": 2
            }
        ]
    }
]