Callback function to handle optimizer progress events
Unsubscribe function to stop listening to events
import { listenOptimizerProgress } from "backtest-kit";
const unsubscribe = listenOptimizerProgress((event) => {
console.log(`Progress: ${(event.progress * 100).toFixed(2)}%`);
console.log(`${event.processedSources} / ${event.totalSources} sources`);
console.log(`Optimizer: ${event.optimizerName}, Symbol: ${event.symbol}`);
});
// Later: stop listening
unsubscribe();
Subscribes to optimizer progress events with queued async processing.
Emits during optimizer execution to track data source processing progress. Events are processed sequentially in order received, even if callback is async. Uses queued wrapper to prevent concurrent execution of the callback.