findAll method

Future findAll(dynamic collectionName)

Implementation

Future findAll(collectionName) async {
  List documents = [];
  await _firestore.collection(collectionName).get().then((d) {
    for (var element in d.docs) {
      documents.add(element.data());
    }
  });

  if (documents == []) {
    return null;
  } else {
    return documents;
  }
}