check_if_user_is_admin function
Implementation
Future<bool> check_if_user_is_admin(user_id) async {
DocumentSnapshot user =
await FirebaseFirestore.instance.collection("users").doc(user_id).get();
Map user_data = user.data() as Map;
if (user_data["admin"] != null) {
return user_data["admin"];
} else {
return false;
}
}