How to use a ready-made structure in a structure?

Question

go

I have a ready-made structure A
I want to place it as an element in another structure

type A struct {
  Id          string  `db:"id" json:"id" valid:"uuidv4"`
  Target      string  `db:"target" json:"target" valid:"uuidv4"`
}

type B struct {
  Id          string      `db:"id" json:"id" valid:"uuidv4"`
  Type      int         `db:"type" json:"type" valid:"-"`
  A           null.*A{}
}

Answer 1

type A struct {
  Id     string `db:"id" json:"id" valid:"uuidv4"`
  Target string `db:"target" json:"target" valid:"uuidv4"`
}

type B struct {
  Id            string `db:"id" json:"id" valid:"uuidv4"`
  Type          int    `db:"type" json:"type" valid:"-"`
  SomeFieldName A      `json:"A"`
}