The Flutter GetX Ecosystem/

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The Get.putAsync Method

The Get.putAsync Method

Learn to use Get.putAsync to initialize dependencies asynchronously.

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Initializing dependencies asynchronously

At times, our dependency results from an asynchronous operation, such as when using SharedPreferences (a simple key-value storage system used for persisting primitive data types in Flutter applications). We can perform the operation and initialize the dependency using the Get.putAsync method.

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Get.putAsync<SharedPreferences>(() async {
  final prefs = await SharedPreferences.getInstance();
  await prefs.setString('name', 'Aachman');
  return prefs;
});

Get.putAsync takes the builder parameter, which is a function that, when called, initiates an asynchronous process to obtain the dependency instance. The builder function returns a Future representing this asynchronous operation, which will eventually resolve to the dependency instance once the process is complete.

As with all other methods, we retrieve the dependency using Get.find:

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Get.find<SharedPreferences>().getString('name');
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