获取JSON动态键名作为字符串？

Question

For example:

{"id":
    {"12345678901234":
       {"Account":"asdf",
       "Password":"qwerty"
       "LastSeen":"1397621470",
       }
    }
}

A program I've been trying to make needs to get the id as a string and then later use it to check the time in LastSeen. I've tried using simplejson and jsonq,but still cant figure out how to do that.

Answer 1

You can use RawMessage and make it much simpiler (play with it) :

package main

import (
    "encoding/json"
    "fmt"
)

var data []byte = []byte(`{"id": {"12345678901234": {"Account":"asdf", "Password":"qwerty", "LastSeen":"1397621470"}}}`)

type Message struct {
    Id   string
    Info struct {
        Account  string
        Password string
        LastSeen string
    }
}

func main() {
    var (
        tmpmsg struct {
            Data map[string]json.RawMessage `json:"id"`
        }
        msg Message
    )
    if err := json.Unmarshal(data, &tmpmsg); err != nil {
        panic(err) //you probably wanna use or something instead
    }

    for id, raw := range tmpmsg.Data {
        msg.Id = id
        if err := json.Unmarshal(raw, &msg.Info); err != nil {
            panic(err)
        }
    }
    fmt.Printf("%+v
", msg)

}