[Golang] Set value into a Struct by string name

setValue.go

// https://play.golang.org/p/DnGeQsaGfi
package main

import (
	"fmt"
	"reflect"
)

type Ogp struct {
	Title       string
	Description string
	Url         string
	Type        string
	Image       string
	Site_name   string
}

func setFieldValue(ogp *Ogp, field string, value string) {
	r := reflect.ValueOf(ogp)
	f := reflect.Indirect(r).FieldByName(field)
	if f.Kind() != reflect.Invalid {
		f.SetString(value)
	}
}

func main() {
	o := Ogp{
		Title: "qq",
	}
	
	fmt.Println(o)
	
	setFieldValue(&o, "Url", "https://www.google.com.tw")
	setFieldValue(&o, "Type", "search")
	
	fmt.Println(o)
}

DEMO: https://play.golang.org/p/DnGeQsaGfi