go - golang unmarshal a json object into map[string]interface{} by default, how can I unmarshal it to []byte? -


golang unmarshal json object map[string]interface{} default, how can unmarshal []byte? because need secondary unmarshal struct instance after got type.

why don't unmarshal json struct directly?

or in case have more objects slice of struct? 

package main  import (     "encoding/json"     "fmt" )  type testjson struct {     foo string     baz string }  var (     jsonvalue = `{"foo" : "bar", "baz" : "qux"}`     jsonvalueslice = `[{"foo" : "bar", "baz" : "qux"},{"foo" : "second bar", "baz" : "second qux"}]` )  func main() {     t := testjson{}     err := json.unmarshal([]byte(jsonvalue), &t)     if err != nil {         fmt.println(err)     }      fmt.printf("%+v\n", t)       t2 := []testjson{}     err2 := json.unmarshal([]byte(jsonvalueslice), &t2)     if err2 != nil {         fmt.println(err2)     }      fmt.printf("%+v\n", t2) }

edit : go doesn't unmarshal map[string]interface{} default, read docs! 

func unmarshal(data []byte, v interface{}) error

golang json.unmarshal can populate anyting, long data consistant.


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