import 'dart:async'; import 'package:cake_wallet/core/fiat_conversion_service.dart'; import 'package:cake_wallet/store/app_store.dart'; import 'package:cake_wallet/store/dashboard/fiat_conversion_store.dart'; import 'package:cake_wallet/store/settings_store.dart'; Timer _timer; Future startFiatRateUpdate(AppStore appStore, SettingsStore settingsStore, FiatConversionStore fiatConversionStore) async { if (_timer != null) { return; } fiatConversionStore.price = await FiatConversionService.fetchPrice( appStore.wallet.currency, settingsStore.fiatCurrency); _timer = Timer.periodic( Duration(seconds: 30), (_) async => fiatConversionStore.price = await FiatConversionService.fetchPrice( appStore.wallet.currency, settingsStore.fiatCurrency)); }