demo

type Job struct {
	Type   string `json:"type"   default:"none" validate:"required,min=3,max=32"`
	Salary int    `json:"salary" default:"200"  validate:"required,number"`
}

type User struct {
	Name     string `json:"name"      default:"john" validate:"required,min=3,max=32"`
	IsActive bool   `json:"is_active" default:"true" validate:"required,eq=True|eq=False"`
	Email    string `json:"email"                    validate:"required,email,min=6,max=32"`
	Job      Job    `json:"job"                      validate:"dive"`
}