EpicClass<State> class abstract

A class that acts as an Epic, transforming one stream of actions into another stream of actions. Generally, Epic functions are simpler, but you may have advanced use cases that require a type-safe class.

Example

class ExampleEpic extends EpicClass<State> {
  @override
  Stream<dynamic> call(Stream<dynamic> actions, EpicStore<State> store) {
    return actions
      .where((action) => action is PerformSearchAction)
      .asyncMap((action) =>
        // Pseudo api that returns a Future of SearchResults
        api.search((action as PerformSearch).searchTerm)
          .then((results) => new SearchResultsAction(results))
          .catchError((error) => new SearchErrorAction(error)));
  }
}