print pointer value to json...

[eric]

hi, i am newer in golang.

i want to marshal pointer value to json.

but, i can't. how can i do that ?

thanks,

package main

import (

"encoding/json"

"fmt"

)

type KV struct {

k string

v string

}

func main() {

kv := []*KV{}

obj := new(KV)

obj.k = "eric"

obj.v = "23"

kv = append(kv, obj)

obj = new(KV)

obj.k = "robot"

obj.v = "32"

kv = append(kv, obj)

fmt.Printf("%d\n", len(kv))

fmt.Printf("%v\n", kv)

b, _:= json.MarshalIndent(kv, "", "  ")

fmt.Println(string(b)) // <--- not work,,,

}

output: 

2
[0x1050e140 0x1050e150]
[
  {},
  {}
]

https://play.golang.org/p/BcsGFjnQt9

[Pietro Gagliardi]

You must export the struct fields in order for package json to see them.

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[abi...@gmail.com]

Exported fields must use uppercase of capital letter.

type KV struct {

  K string

  V string