public async Task Publish(string eventName, IIntegrationEvent @event, string replyTo = null, string correlationId = null)
{
if (!string.IsNullOrEmpty(replyTo) && correlationId == null)
{
throw new ArgumentNullException(nameof(correlationId));
}
var json = JsonConvert.SerializeObject(@event, _options.JsonSettings);
var entry = Published.CreateEventLog(@event.Id, eventName, json, correlationId, replyTo);
await _publishedStore.AddAsync(entry);
_pendings = _pendings ?? new List <Published>();
_pendings.Add(entry);
}