20 lines
586 B
Dart
Executable File
20 lines
586 B
Dart
Executable File
Future<T> localOrBackendOrExternal<T>({
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required Future<void> Function(T e) storeLocally,
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required Future<T?> Function() localGet,
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required Future<T> Function() backendGet,
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required Future<T> Function() externalGet,
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}) async {
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final local = await localGet();
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if (local != null) return local;
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try {
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final backend = await backendGet();
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storeLocally(backend);
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return backend;
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} catch (error, stackTrace) {
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Future(() => Error.throwWithStackTrace(error, stackTrace));
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}
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final external = await externalGet();
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storeLocally(external);
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return external;
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}
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