Future<void> addPhoneNumber(String phoneNumber) async { _loadingDialog(“Checking In…”); final FirebaseFirestore _firestore = FirebaseFirestore.instance; final List<String> documentNames = [‘list1’, ‘list2’, ‘list3’, ‘list4’, ‘list5’]; const int maxNumbersPerDoc = 80000; // Limit try { for (String docName in documentNames) { DocumentReference docRef = _firestore.collection(‘contest’).doc(docName); // Read the document DocumentSnapshot docSnap = await docRef.get(); Map<String, dynamic>? data = docSnap.data() as […]