How to Read Generic JSON in Golang.

read_generic_json.go

package main

import (
	"encoding/json"
	"fmt"
)

func main() {

	// Go stores JSON data as an array of bytes.
	jstr := `{"fname":"john","lname":"doe","age":25}`
	b := []byte(jstr)

	// In Go, a generic object has type of 'interface{}'
	// JSON is either an object of key-value pairs, i.e map[string]interface{}
	// ...or an array of objects, i.e []interface{}
	var jobj map[string]interface{}

	// Unmarshalling => decoding JSON to Go object.
	if err := json.Unmarshal(b, &jobj); err != nil {
		fmt.Println(err.Error())
	}

	fmt.Println(jobj["fname"])
}