-haalw
Last Updated: June 17, 2018
·
25
· azbshiri

How to get struct variable information using reflect package?

Using reflect package you can also find the name and type of and value of struct variables.

package main

import (
    "fmt"
    "reflect"

)
type Book struct {
    Id    int   
    Title string
    Price float32
    Authors []string    
}

func main() {
    book := Book{1, "foo", 1.5, []string{"alex"}}
    e := reflect.Indirect(reflect.ValueOf(&book))

    for i := 0; i < e.NumField(); i++ {
        varName := e.Type().Field(i).Name
        varType := e.Field(i).Type
        varValue := e.Field(i).Interface()
        fmt.Printf("%v %v %v\n", varName,varType,varValue)
    }
}