Dynamic JSON struct, API result golang - json

Question

I have to make two HTTP API calls in GoLang, the first API call returns this json response:
{
"status": 200,
"msg": "OK",
"result": {
"id": "24",
"folderid": "4248"
}
}
My json struct for first response is setup like this:
type One struct {
Status int `json:"status"`
Msg string `json:"msg"`
Result struct {
ID string `json:"id"`
Folderid string `json:"folderid"`
} `json:"result"`
}
The second call is where the problem is. As you can see the first API call returns a result -> id. This ID should be the name for the beginning of my second struct, but I can't seem how to make it dynamic or put a result as my structure name. This ID (24) will always change based on the first API call. I have no way currently to parse the second call's JSON and setup my struct. On the second API call I want to access the remoteurl/status.
Second call result (I can not parse):
{
"status": 200,
"msg": "OK",
"result": {
24: ** THIS IS DYNAMIC** {
"id": 24,
"remoteurl": "http://proof.ovh.net/files/100Mio.dat",
"status": "new",
"bytes_loaded": null,
"bytes_total": null,
"folderid": "4248",
"added": "2015-02-21 09:20:26",
"last_update": "2015-02-21 09:20:26",
"extid": false,
"url": false
}
}
}
Does anyone know how to setup my struct or go about this. I am a new programmer and go and have worked on this for 4 days. And decided to ask for some help, since I am in school and have normal homework.
Found that using JSON-to-GO helped solve future problems, will create the structs and other necessities based off a JSON content.

Answer 1

{
"status": 200,
"msg": "OK",
"result": {
24: {
"id": 24,
"remoteurl": "http://proof.ovh.net/files/100Mio.dat",
"status": "new",
"bytes_loaded": null,
"bytes_total": null,
"folderid": "4248",
"added": "2015-02-21 09:20:26",
"last_update": "2015-02-21 09:20:26",
"extid": false,
"url": false
}
}
}
Is not value JSON. You MUST mean the JSON i posted below, if you want to check yourself, copy your version of the JSON into any JSON validator;
https://jsonlint.com/
https://jsoneditoronline.org/
https://jsonformatter.curiousconcept.com/
Also view the thread linked below.. if the API truly is returning what you claim it returns then the API has a bug in it
Why JSON allows only string to be a key?
{
"status": 200,
"msg": "OK",
"result": {
"24": {
"id": 24,
"remoteurl": "http://proof.ovh.net/files/100Mio.dat",
"status": "new",
"bytes_loaded": null,
"bytes_total": null,
"folderid": "4248",
"added": "2015-02-21 09:20:26",
"last_update": "2015-02-21 09:20:26",
"extid": false,
"url": false
}
}
}
Here is some example code that uses a map to a struct what solves the dynamic response of the second response
package main
import (
"encoding/json"
"fmt"
"log"
)
var res1 = `{
"status": 200,
"msg": "OK",
"result": {
"id": "24",
"folderid": "4248"
}
}`
var res2 = `{
"status": 200,
"msg": "OK",
"result": {
"24": {
"id": 24,
"remoteurl": "http://proof.ovh.net/files/100Mio.dat",
"status": "new",
"bytes_loaded": null,
"bytes_total": null,
"folderid": "4248",
"added": "2015-02-21 09:20:26",
"last_update": "2015-02-21 09:20:26",
"extid": false,
"url": false
}
}
}
`
type One struct {
Status int `json:"status"`
Msg string `json:"msg"`
Result struct {
ID string `json:"id"`
Folderid string `json:"folderid"`
} `json:"result"`
}
type Two struct {
Status int `json:"status"`
Msg string `json:"msg"`
Result map[string]innerData `json:"result"`
}
type innerData struct {
ID int `json:"id"`
Remoteurl string `json:"remoteurl"`
Status string `json:"status"`
BytesLoaded interface{} `json:"bytes_loaded"`
BytesTotal interface{} `json:"bytes_total"`
Folderid string `json:"folderid"`
Added string `json:"added"`
LastUpdate string `json:"last_update"`
Extid bool `json:"extid"`
URL bool `json:"url"`
}
func main() {
var one One
err := json.Unmarshal([]byte(res1), &one)
if err != nil {
log.Fatal(err)
}
var two Two
err = json.Unmarshal([]byte(res2), &two)
if err != nil {
log.Fatal(err)
}
//pretty print both strutures
b, _ := json.MarshalIndent(one, "", " ")
fmt.Printf("%s \n\n", b)
b, _ = json.MarshalIndent(two, "", " ")
fmt.Printf("%s \n\n", b)
// access data from two with id from one
if dat, ok := two.Result[one.Result.ID]; ok {
b, _ = json.MarshalIndent(dat, "", " ")
fmt.Printf("inner data\n%s\n", b)
}
}