Convert Struct to Map in Golang

package main

import (
    "encoding/json"
    "fmt"
)

type Product struct {
    Id     int
    Name   string
    Price  float32
    Status bool
}

func StructToMap(obj interface{}) (mymap map[string]interface{}, err error) {
    data, err := json.Marshal(obj)
    if err != nil {
        return
    }
    err = json.Unmarshal(data, &mymap)
    return
}

func main() {

    product := Product{
        Id:     1,
        Name:   "Name 1",
        Price:  5.6,
        Status: true,
    }

    mymap, err := StructToMap(product)

    if err != nil {
        fmt.Printf(err.Error())
    } else {
        fmt.Println(mymap)
    }

}    
        

Output

map[Id:1 Name:Name 1 Price:5.6 Status:true]