Go: Convert type/struct to json string

Step 1: Create a type Employee

type Employee struct {

         FirstName string

         LastName  string

         ID        int

}

Step 2: Create an object of type Employee

emp := Employee{FirstName: "Krishna", LastName: "Gurram", ID: 123}

Step 3: Call json.Marshal function to convert given object to byte array

empBytes, err := json.Marshal(emp)

Step 4: Convert the bytes to json string.

jsonStr := string(empBytes)

Find the below working application.

App.go

package main

import (
 "encoding/json"
 "fmt"
)

//Employee represent an employee object
type Employee struct {
 FirstName string
 LastName  string
 ID        int
}

func main() {

 //Step 1: Create an object of type Employee
 emp := Employee{FirstName: "Krishna", LastName: "Ram", ID: 123}

 //Step 2: Call json.Marshal function to convert given object to byte array
 empBytes, err := json.Marshal(emp)

 if err != nil {
  fmt.Println("Can't marshal emp")
  return
 }

 jsonStr := string(empBytes)

 fmt.Println(jsonStr)

}

Output

{"FirstName":"Krishna","LastName":"Ram","ID":123}

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