I am trying to apply the ddd concepts to my go project
and then I have an entity with a nested struct like this:
type Person struct {
Id string
Name valueObject.Name
Email valueObject.Email
Password valueObject.Password
Created time.Time
Updated time.Time
}
func NewPerson(name valueObject.Name, email valueObject.Email, password valueObject.Password) *Person {
return &Person{
Id: "a",
Name: name,
Email: email,
Password: password,
Created: time.Now(),
Updated: time.Now(),
}
}
all my object values has a structure similar to this:
type Email struct {
address string
}
func NewEmail(address string) (Email, error) {
isValid := valid(address)
if !isValid {
return Email{}, ErrEmail
}
return Email{address}, nil
}
func (e Email) Value() string {
return e.address
}
func (e Email) Format() string {
return strings.TrimSpace(strings.ToLower(e.Value()))
}
func (e Email) Equals(e2 Email) bool {
return e.Value() == e2.Value()
}
and then as I have a struct that is nested I thought of creating a ToJSON function, to return my data, and I also need to exclude some of the return as a password:
type personJson struct {
id string
name string
email string
createdAt time.Time
updatedAt time.Time
}
func (p *Person) ToJSON() personJson {
email := p.Email.Value()
name := p.Name.FullName()
person := personJson{id: "dasdas", email: email, name: name, createdAt: p.Created, updatedAt: p.Updated}
return person
}
but then in my controller I try to access it, or when I return this ToJSON always comes as {}:
type createPersonDTO struct {
FirstName string `json:"firstName"`
LastName string `json:"lastName"`
Password string `json:"password"`
Email string `json:"email"`
}
func (*PersonController) CreateNewPerson(ctx *fiber.Ctx) error {
var dto createPersonDTO
if err := ctx.BodyParser(&dto); err != nil {
return utils.CtxError(ctx, http.StatusUnprocessableEntity, err)
}
email, err := valueObjects.NewEmail(dto.Email)
if err != nil {
return utils.CtxError(ctx, http.StatusUnprocessableEntity, err)
}
name, err := valueObjects.NewName(dto.FirstName, dto.LastName)
if err != nil {
return utils.CtxError(ctx, http.StatusUnprocessableEntity, err)
}
password, err := valueObjects.NewPassword(dto.Password)
if err != nil {
return utils.CtxError(ctx, http.StatusUnprocessableEntity, err)
}
person := entities.NewPerson(name, email, password)
return ctx.Status(http.StatusOK).JSON(person.ToJSON())
}
my res.body is always an empty json
