firebase - The argument type 'QueryDocumentSnapshot' can't be assigned to the parameter type 'AsyncSnapshot<dynamic>'

Question

I try to fetch data from firestore using for snapshot loop but got an error.

here's my code:

Future<List<Product>> getProducts() => _firestore
  .collection(collection)
  .where('show', isEqualTo: true)
  .get()
  .then((snap) {
List<Product> products = [];
for (int i = 0; i < snap.docs.length; i++) {
  products.add(Product.fromSnapshot(snap.docs[i]));
}
return products;
});

the error is at (snap.docs[i]].

question from:https://stackoverflow.com/questions/65641137/the-argument-type-querydocumentsnapshot-cant-be-assigned-to-the-parameter-typ

Answer 1

the recommended way is to use FlutterFire

and a simple example for fetching data would be:

FirebaseFirestore.instance
    .collection('products')
    .get()
    .then((QuerySnapshot querySnapshot) => {
        querySnapshot.docs.forEach((doc) {
            print(doc["name"]);
        });
    });