AsyncMemoizer in Dart/Flutter

Question

How do you memoize your futures? I am using a FutureBuilder that gets items data by some params.

I found here a suggestion to use AsyncMemoizer, however it looks like it's missing from the dart:async package.

Are there alternatives?

Eslinger

this may help #52250078 – Chiang

AsyncMemoizer is part of package:async, not dart:async. – Sackett

Ahhh thanks @jamesdlin, that's it!! – Eslinger

Answer 1

import 'package:async/async.dart';

Strophanthus

Answer 2

First add dependency:

dart pub add async

Then import and use it:

import 'package:async/async.dart';
...
final _memoizer = AsyncMemoizer();

Ratafia