Hide fields in Golang Gorm

Question

I am using Gorm in my Golang project. Exctly I have a Rest-API and I get a request make the process and return an object, so, for example I have a struct User like this:

type User struct {
    gorm.Model
    Password []byte
    Active bool
    Email string
    ActivationToken string
    RememberPasswordToken string
}

Now, when I create a User I am encoding it to JSON with:

json.NewEncoder(w).Encode(user)

But in the client side I am receiving some fields that I don't really want to send/receive, for example: Created_At, Deleted_At, Updated_At, Password. So, what is the best way to ignore or hide that fields in the response? I saw that I can use a library called Reflect, but it seems to be a lot of work for a simple thing and I want to know if there's another way. Thank you very much

Answer 1

As Gavin said, I would suggest having two separate models and giving the model the ability to convert to the correct return type.

models/user.go

package models

type User struct {
    gorm.Model
    Password []byte
    Active bool
    Email string
    ActivationToken string
    RememberPasswordToken string
}

func (u *User) UserToUser() app.User {
    return app.User{
        Email: u.Email
    }
}

app/user.go

package app

type User struct {
    Email string
}