JAVASCRIPT

parsing json data object in golang example

package main

import (
	"encoding/json"
	"fmt"
)

func main() {
	//Simple Employee JSON object which we will parse
	empJson := `{
		"id": 11,
		"name": "Irshad",
		"department": "IT",
		"designation": "Product Manager",
		"address": {
			"city": "Mumbai",
			"state": "Maharashtra",
			"country": "India"
		}
	}`

	// Declared an empty interface
	var result map[string]interface{}

	// Unmarshal or Decode the JSON to the interface.
	json.Unmarshal([]byte(empJson), &result)

	address := result["address"].(map[string]interface{})

	//Reading each value by its key
	fmt.Println("Id :", result["id"],
		"
Name :", result["name"],
		"
Department :", result["department"],
		"
Designation :", result["designation"],
		"
Address :", address["city"], address["state"], address["country"])
}

golang parse jason

import "encoding/json"
//...

// ... 
myJsonString := `{"some":"json"}`

// `&myStoredVariable` is the address of the variable we want to store our
// parsed data in
json.Unmarshal([]byte(myJsonString), &myStoredVariable)
//...

golang parse json file

// You need a struct to unmarshal file:
// After running this function with Some_struct, 
// your object will be filled with json file data
func parseJsonFile(file string, obj *Some_struct) {
	jsonFile, err := os.Open(file)
	// if we os.Open returns an error then handle it
	if err != nil {
		fmt.Println(err, "| Can find a file")
	} else {
		fmt.Println("File found!")
	}

	// defer the closing of our jsonFile so that we can parse it later on
	defer jsonFile.Close()

	// read our opened xmlFile as a byte array.
	byteValue, _ := ioutil.ReadAll(jsonFile)

	// we unmarshal our byteArray which contains our
	// jsonFile's content into 'users' which we defined above
	json.Unmarshal(byteValue, &obj)
}