go - Decode any JSON value to string in Golang -

is there way in golang decode json value string. similar json.number why isn't there json.string?

for example, following decoded indicated

{"number": 123}      => "123" {"string": "123"}    => "123" {"float" : 123.45}   => "123.45" {"bool"  : true}     => "true" {"empty" : ""}       => "" {"null"  : null}     => "" 

inspired post created jsonstring type. decode string, number, boolean or null values string.

https://play.golang.org/p/ucaxwril2k

type jsonstring string type jsonstring jsonstring func (st *jsonstring) unmarshaljson(barr []byte) (err error) {     j, n, f, b := jsonstring(""), uint64(0), float64(0), bool(false)     if err = json.unmarshal(barr, &j); err == nil {         *st = jsonstring(j)         return     }     if err = json.unmarshal(barr, &n); err == nil {         *st = jsonstring(string(barr[:]))         return     }     if err = json.unmarshal(barr, &f); err == nil {         *st = jsonstring(string(barr[:]))         return     }     if err = json.unmarshal(barr, &b); err == nil {         *st = jsonstring(string(barr[:]))         return     }     return }