Cannot embed struct in struct

Question

I have the following two structs:

type Profile struct {
    Email        string   `json:"email"`
    Username     string   `json:"username"`
    Name         string   `json:"name"`
    Permissions  []string `json:"permissions"`
}

type Session struct {
    Token  string   `json:"token"`
    User   Profile  `json:"user"`
}

and I'm trying to create a new Session using:

session := Session{token, profile}

where token is a string and profile is a Profile both created earlier.

I'm getting the error cannot use profile (type *Profile) as type Profile in field value when I compile.

Am I missing something?

Ainar-G · Accepted Answer · 2015-05-26 14:29:27Z

4

Your profile is a pointer. Either redefine your Session to be

type Session struct {
    Token  string    `json:"token"`
    User   *Profile  `json:"user"`
}

or dereference it.

session := Session{token, *profile}

answered May 26, 2015 at 14:29

Ainar-G

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2 Comments

tommyd456 Over a year ago

Thanks - what does derefencing actually mean then?

Ainar-G Over a year ago

When you dereference a pointer, you get the value the pointer (which is an address) was pointing to. The type *Profile is an address of a Profile value. *p, where p is of type *Profile, will get the value.

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