ch16.3

internal/data/users.go

@@ -15,6 +15,8 @@ var (
 	ErrDuplicateEmail = errors.New("duplicate email")
 )
 
+var AnonymousUser = &User{}
+
 type User struct {
 	ID        int64     `json:"id"`
 	CreatedAt time.Time `json:"created_at"`
@@ -25,6 +27,10 @@ type User struct {
 	Version   int       `json:"-"`
 }
 
+func (u *User) IsAnonymous() bool {
+	return u == AnonymousUser
+}
+
 type password struct {
 	plaintext *string
 	hash      []byte