recordRef static method

Future<void> recordRef(
  1. String stateId,
  2. String ref
)

Record the referral source (from ?ref= query parameter).

Implementation

static Future<void> recordRef(String stateId, String ref) async {
  await _col.doc(stateId).set({
    'refs.$ref': FieldValue.increment(1),
  }, SetOptions(merge: true));
}