json unmarshal in gloang for complex json data - json

Question

i want to json unmarshal following data in golang :
{
RESPONSE : {
CODE : "123"
NEW_RESPONSE :{
0:[
{
key1:val1,
key2:val2
},
{
key3:val3,
key4:val4
}
]
1:[
{
key5:val5,
key6:val6,
key7:val7
},
{
key31:val31,
key42:val42
}
]
2:{
key8:val8,
key9:val9,
key1-:val10
}
3:{}
}
}
}
I want to access every key of this data. What i was trying is
type testData struct{
Code string `json:"CODE"`
NewResponse map[string]interface{} `json:"NEW_RESPONSE"`}
type GetData struct{
TestResponse testData `json:"RESPONSE"`}
After this I am not able to furthur use "NewResponse". Need help. Thanks in advance.

Answer 1

You can access elements of NewResponse using the key:
elem:=NewResponse["0"]
Looking at the input document, elem is an array of objects. The rest of the code will use type assertions:
if arr, ok:=elem.([]interface{}); ok {
// arr is a JSON array
objElem:=arr[0].(map[string]interface{})
for key,value:=range objElem {
// key: "key1"
// value: "val1"
val:=value.(string)
...
}
} else if obj, ok:=elem.(map[string]interface{}); ok {
// obj is a JSON object
for key, val:=range obj {
// key: "key1"
value:=val.(string)
}
}

Answer 2

Plz validate your json format
this may solve your purpose.
package main
import (
"encoding/json"
"fmt"
)
func main() {
Json := `{
"RESPONSE" : {
"CODE" : "123",
"NEW_RESPONSE" :{
"0":{
"s" : 1,
"s1" :2,
"s3": 3
}
}
}
}`
// Declared an empty interface
var result map[string]interface{}
// Unmarshal or Decode the JSON to the interface.
err := json.Unmarshal([]byte(Json), &result)
if err != nil{
fmt.Println("Err : ",err)
}else{
fmt.Println(result)
}
}