async_redux

Inject dependencies into actions using the environment, dependencies, and configuration pattern. Covers creating an Environment enum, a Dependencies class, passing them to the Store, accessing them from actions and widgets, and using dependency injection for testability.

Create a custom base action class for your app. Covers adding getter shortcuts to state parts, adding selector methods, implementing shared wrapError logic, and establishing project-wide action conventions.

Initialize, setup and configure AsyncRedux in a Flutter app. Use it whenever starting a new AsyncRedux project, or when the user requests.

Stops an AsyncRedux (Flutter) action from dispatching. Use only when the user mentions abortDispatch(), or explicitly asks to abort or prevent dispatch under certain conditions.

Checks an AsyncRedux (Flutter) action's completion status using ActionStatus right after the dispatch returns. Use only when you need to know whether an action completed, whether it failed with an error, what error it produced, or how to navigate based on success or failure.

Creates AsyncRedux (Flutter) actions that return null from reduce() to not change the state. Such actions can still do side effects, dispatch other actions, or do nothing.

Creates AsyncRedux (Flutter) asynchronous actions for API calls, database operations, and other async work.

Implement action lifecycle methods `before()` and `after()`. Covers running precondition checks, showing/hiding modal barriers, cleanup logic in `after()`, and understanding that `after()` always runs (like a finally block).

Add the CheckInternet mixin to ensure network connectivity before action execution. Covers automatic error dialogs, combining with NoDialog for custom UI handling, and AbortWhenNoInternet for silent abort.

Implement the Connector pattern for separating smart and dumb widgets. Covers creating StoreConnector widgets, implementing VmFactory and Vm classes, building view-models, and optimizing rebuilds with view-model equality.

Add the Debounce mixin to wait for user input pauses before acting. Covers setting the `debounce` duration, implementing search-as-you-type, and avoiding excessive API calls during rapid input.

Debug AsyncRedux applications effectively. Covers printing state with store.state, checking actionsInProgress(), using ConsoleActionObserver, StateObserver for state change tracking, and tracking dispatchCount/reduceCount.

Dispatch actions using all available methods: `dispatch()`, `dispatchAndWait()`, `dispatchAll()`, `dispatchAndWaitAll()`, and `dispatchSync()`. Covers dispatching from widgets via context extensions and from within other actions.

Implement comprehensive error handling for actions. Covers the `wrapError()` method for action-level error wrapping, GlobalWrapError for app-wide error transformation, ErrorObserver for logging/monitoring, and the error handling flow (before → reduce → after).

Use the Event class to interact with Flutter's stateful widgets (TextField, ListView, etc.). Covers creating Event objects in state, consuming events with `context.event()`, scrolling lists, changing text fields, and the event lifecycle.

Integrate AsyncRedux with the flutter_hooks package. Covers adding flutter_hooks_async_redux, using the useSelector hook, and combining hooks with AsyncRedux state management.

Handle navigation through actions using NavigateAction. Covers setting up the navigator key, dispatching NavigateAction for push/pop/replace, and testing navigation in isolation.

Add the NonReentrant mixin to prevent an action from dispatching while already in progress. Covers preventing duplicate form submissions, avoiding race conditions, and protecting long-running operations.

Set up observers for debugging and monitoring. Covers implementing actionObservers for dispatch logging, stateObserver for state change tracking, combining observers with globalWrapError, and using observers for analytics.

Add the OptimisticUpdate mixin for instant UI feedback before server confirmation. Covers immediate state changes, automatic rollback on failure, and optionally notifying users of rollback.

Implement local state persistence using Persistor. Covers creating a custom Persistor class, implementing `readState()`, `persistDifference()`, `deleteState()`, using LocalPersist helper, throttling saves, and pausing/resuming persistence with app lifecycle.

Integrate AsyncRedux with the Provider package. Covers using provider_for_redux, the ReduxSelector widget, and choosing between StoreConnector and ReduxSelector approaches.

Add the Retry mixin for automatic retry with exponential backoff on action failure. Covers using Retry alone for limited retries, combining with UnlimitedRetries for infinite retries, and configuring retry behavior.

Create and cache selectors for efficient state access. Covers writing selector functions, caching with `cache1` and `cache2`, the reselect pattern, and avoiding repeated computations in widgets.

Access store state in widgets using `context.state`, `context.select()`, and `context.read()`. Covers when to use each method, setting up BuildContext extensions, and optimizing widget rebuilds with selective state access.

Design immutable state classes following AsyncRedux best practices. Includes creating the AppState class with a `copy()` method, defining `initialState()`, composing nested state objects, and optionally using the fast_immutable_collections package for IList, ISet, and IMap.

Manage Streams and Timers with AsyncRedux. Covers creating actions to start/stop streams, storing stream subscriptions in store props, dispatching actions from stream callbacks, and proper cleanup with disposeProps().

Creates AsyncRedux (Flutter) synchronous actions that update state immediately by implementing reduce() to return a new state.

Write unit tests for AsyncRedux actions using the Store directly. Covers creating test stores with initial state, using `dispatchAndWait()`, checking state after actions, verifying action errors via ActionStatus, and testing async actions.

Test StoreConnector view-models in isolation. Covers creating view-models with `Vm.createFrom()`, testing view-model properties, testing callbacks that dispatch actions, and verifying state changes from callbacks.

Use advanced wait methods for complex test scenarios. Covers `waitCondition()`, `waitAllActions()`, `waitActionType()`, `waitAllActionTypes()`, `waitAnyActionTypeFinishes()`, and the `completeImmediately` parameter.

Add the Throttle mixin to prevent actions from running too frequently. Covers setting the throttle duration in milliseconds, use cases like price refresh, and how freshness/staleness works.

Implement undo/redo functionality using state observers. Covers recording state history with stateObserver, creating a RecoverStateAction, implementing undo for the full state or partial state, and managing history limits.

Handle user-facing errors with UserException. Covers throwing UserException from actions, setting up UserExceptionDialog, customizing error dialogs with `onShowUserExceptionDialog`, and using UserExceptionAction for non-interrupting error display.

Use `waitCondition()` inside actions to pause execution until state meets criteria. Covers waiting for price thresholds, coordinating between actions, and implementing conditional workflows.

Show loading states and handle action failures in widgets. Covers `isWaiting(ActionType)` for spinners, `isFailed(ActionType)` for error states, `exceptionFor(ActionType)` for error messages, and `clearExceptionFor()` to reset failure states.