小编kis*_*ish的帖子

I am trying to unmarshal a data which is of type interface. So I need to convert the interface type to []byte and pass it to unmarshall. i tried

1. err := json.Unmarshal([]byte(kpi), &a) => failed
2. i tired to convert the interface to byte by using kpidata, res := kpi.([]byte) => failed, kpidata is nil

So is there any way we can convert it?

Example: https://play.golang.org/p/5pqQ0DQ94Dp