go test -v *.go

    package main 

    import (
        "github.com/irebit/jingdong_union_go"
        "log"
    )

    var app = &jingdong_union_go.App{
        ID:     "xxxxxx",
        Key:    "xxxxxx",
        Secret: "xxxxxx",
    }

    res, err := app.JdUnionOpenCategoryGoodsGet(map[string]interface{}{
        "parentId": 0,
        "grade":    0,
    })

    log.Println(res, err)