feat: implement BatchedPollingEventSubscriber for optimized event polling. - #122
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This pull request introduces a new batched event polling mechanism and integrates it into the
PollingJsonRpcProviderto improve efficiency and control over event polling. The main changes include the addition of theBatchedPollingEventSubscriberclass, modification of the provider to use this new subscriber, and new controls for pausing and resuming event polling.Event polling improvements:
BatchedPollingEventSubscriberclass insrc/provider/batched-polling-event-subscriber.ts, which polls for events at fixed intervals instead of every block, reducing the number ofeth_getLogscalls._getSubscribermethod inPollingJsonRpcProviderto useBatchedPollingEventSubscriberfor event subscriptions, enabling interval-based polling.Provider control enhancements:
pauseandresumemethods toPollingJsonRpcProvider, allowing pausing and resuming of all event subscribers.