private async void PersistCache(object state)
{
_timer.Change(Timeout.Infinite, Timeout.Infinite);
try
{
var pairs = _cacheService.GetAll();
await _repository.WriteAsync(pairs.Select(AssetPairPrice.Create).ToArray());
}
catch (Exception ex)
{
_log.Error(ex);
}
finally
{
_timer.Change(_persistPeriod, Timeout.InfiniteTimeSpan);
}
}