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added count aggregation query snippets #19

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Merged
merged 1 commit into from
Mar 9, 2023
Merged

added count aggregation query snippets #19

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27 changes: 27 additions & 0 deletions packages/firebase_snippets_app/lib/snippets/firestore.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -794,6 +794,33 @@ class FirestoreSnippets extends DocSnippet {
// [END perform_simple_and_compound_queries_collection_groups2]
}

void aggregationQuery_count() {
// [START count_aggregate_collection]
// Returns number of documents in users collection
db
.collection("users")
.count()
.then(
(res) => print(res.data().count),
onError: (e) => print("Error completing: $e"),
);
// [END count_aggregate_collection]
}

void aggregationQuery_count2() {
// [START count_aggregate_query]
// This also works with collectionGroup queries.
db
.collection("users")
.where("age", isGreaterThan: 10)
.count()
.then(
(res) => print(res.data().count),
onError: (e) => print("Error completing: $e"),
);
// [END count_aggregate_query]
}

void orderAndLimitData_orderAndLimitData() {
// [START order_and_limit_data_order_and_limit_data]
final citiesRef = db.collection("cities");
Expand Down