cached_query 0.5.0 cached_query: ^0.5.0 copied to clipboard
A simple library for dealing with server state in dart and flutter.
import 'package:cached_query/cached_query.dart';
//ignore_for_file:avoid_print
// Full project example here: https://github.com/D-James-GH/cached_query/tree/main/examples/query_builder
void main() async {
// Optionally initialise cached query with a config
CachedQuery.instance.config(
config: QueryConfig(
cacheDuration: const Duration(minutes: 5),
),
);
final filmTitle = getFilmTitle();
// listen to state updates
filmTitle.stream.listen((event) {
print("Stream: ${event.data}");
});
// Or just await the result
print(await filmTitle.result);
// Calling again gets the same query instance and data from cache
final sameQuery = getFilmTitle();
// Can force a refetch and await the result
// ignore: unused_local_variable
final refetchResult = await sameQuery.refetch();
}
Query<String> getFilmTitle() {
return Query<String>(
key: 'title',
// Override the global config here
config: QueryConfig(
cacheDuration: const Duration(seconds: 4),
),
queryFn: () => Future.delayed(
const Duration(milliseconds: 400),
() => "Star Wars",
),
);
}