Golang Reflect Struct Example https://play.golang.org/p/duT92qd3_ot

reflect_struct.go

package main

import (
	"fmt"
	"reflect"
)

type Foo struct {
	User  string `tag_name:"tag 1"`
	Fruit string `tag_name:"tag 2"`
	Score int    `tag_name:"tag 3"`
}

func PrintStruct(x interface{}) {
	structValue := reflect.ValueOf(x)
	structType := structValue.Type()

	for i := 0; i < structValue.NumField(); i++ {
		structField := structType.Field(i)
		
		Name := structField.Name
		Value := structValue.Field(i).Interface()
		Type := reflect.ValueOf(Value).Type()
		TagName := structField.Tag.Get("tag_name")

		fmt.Printf("Name: %s,\t Value: %v,\t Type: %s,\t TagName: %s\n", Name, Value, Type, TagName)
	}
}

func main() {
	foo := Foo{
		User:  "Bob",
		Fruit: "banana",
		Score:  300,
	}
	PrintStruct(foo)
	// Name: User,   Value: Bob,     Type: string,  TagName: tag 1
	// Name: Fruit,  Value: banana,  Type: string,  TagName: tag 2
	// Name: Score,  Value: 300,     Type: int,     TagName: tag 3
}