Go_DI.go

package main

import "fmt"

type Http struct {
}

func (http *Http) Get(url string) string {
	return fmt.Sprintf("the result from %s is nothing", url)
}

type NamesService struct {
	Http *Http
}

func (service *NamesService) get_name_service(name string) string {
	return fmt.Sprintf("name is %s and url is %s", name, service.Http.Get("http://loical"))
}

type GetNames struct {
	Service NamesService
}

func (names *GetNames) get_name(name string) string {
	return names.Service.get_name_service("umesh")
}

func main() {
	http := &Http{};
	service := NamesService{Http:http}
	names := GetNames{Service:service}
	fmt.Println("Hello!!", names.Service.get_name_service("umesh"))
}