volt 0.0.3

Simple, fast, effortless data fetching and real-time updates

volt ⚡️

Effortlessly manage asynchronous data fetching, caching, and real-time data delivery with minimal code.

Features

• ⚡️ Blazing-fast development with minimal boilerplate code
• 🚀 Fast in-memory caching for instant data access
• 💾 Robust disk caching for seamless offline support
• 🔄 Smart query deduplication to optimize network requests
• 🔮 Configurable auto-refetching to keep data fresh
• 📡 Real-time reactive updates across all listeners
• 🧩 Easy integration with existing Flutter projects
• 🧠 Compute isolate support for heavy deserialization tasks
• 📦 Simple and compact package for efficient state management
• 🔒 Built-in error handling, auto recovery and retry mechanisms

Install

flutter pub add volt

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Usage

VoltQuery<Photo> photoQuery(String id) => VoltQuery(
      queryKey: ["photo", id],
      queryFn: () => fetch("https://jsonplaceholder.typicode.com/photos/$id"),
      select: Photo.fromJson,
    );

Widget build(BuildContext context) {
  final photo = useQuery(photoQuery("1"));

  return photo == null ? CircularProgressIndicator() : Text("Photo: ${photo.title}");
}

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Configuration

Widget build(BuildContext context) {
  final queryClient = useMemoized(() => QueryClient(
    // configuration options
  ));

  return QueryClientProvider(
    client: queryClient,
    child: MyApp(),
  );
}

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Credits

Volt's public API design was inspired by React Query, a popular data-fetching and state management library for React applications.