Convert String into Struct in Go

Unmarshal string into JSON structure in Golang

 package main  
 import (  
      "log"  
      "encoding/json"  
 )  
 type Student struct {  
      Name  string `json:"name"`  
      RollNumber  string `json:"roll_number"`  
 }  
 func ParseString(s string) {  
      bytes := []byte(s)  
      var student Student  
      err := json.Unmarshal(bytes, &student)  
      if err != nil {  
           log.Println("Task/approval ParseString method fail:", err)  
      }  
      log.Println(student.Name, student.RollNumber)  
 }  
 func main() {  
      var student string = `{"name":"Rohan", "roll_number":"123"}`  
      ParseString(student)  
 }