private void GetReferrerUsers()
{
var query = _referrerEvent.Length == 0 ? ReferralUsersQuery.AllUsers() : ReferralUsersQuery.UsersForEvent(_referrerEvent);
GetSocial.GetReferrerUsers(query, referralUsers =>
{
DemoUtils.ShowPopup("Referrer Users", GetReferralUsersInfo(referralUsers));
}, error =>
{
_console.LogE(string.Format("Failed to get referrer users: {0}", error.Message));
});
}