contract

type Server interface {
	ListenAndServe() error
	Shutdown(context.Context) error
}

type Service interface {
	AddRoute(mux *http.ServeMux)
}

type UserProfile struct {
	UserID   string
	Nickname string
	Email    string
	Avatar   string
}

type UserRepository interface {
	GetUserProfile(userid string) (*UserProfile, error)
}