Golang get struct fields

main.go

package main

import "fmt"


func GetStructTags(s interface{}, tag string) map[string]string {
	t := reflect.TypeOf(s)
	if t.Kind() == reflect.Ptr {
		t = t.Elem()
	}
	if t.Kind() != reflect.Struct {
		return nil
	}
	m := make(map[string]string)
	for i := 0; i < t.NumField(); i++ {
		f := t.Field(i)
		m[f.Name] = f.Tag.Get(tag)
	}
	return m
}

type Test struct {
  TestCase `ta:"tc"`
}

func main() {
  t := &Test{}
  vals := GetStructTags(t, "tc")
  for _, v := range vals {
    fmt.Println(v)
  }
}