public async Task <DeliveryResult <TKey, TValue> > ProduceAsync(string topic, Message <TKey, TValue> message,
CancellationToken cancellationToken = new CancellationToken())
{
message.Headers = message.Headers ?? new Headers();
using (var scope = _tracer.CreateAndInjectActiveProducerScopeFrom(
message.Headers.ToDictionary(Encoding.UTF8)))
{
scope.Span.SetTag(Tags.MessageBusDestination, topic);
var report = await _producer.ProduceAsync(topic, message, cancellationToken);
scope.Span.SetTag("kafka.topic", report.Topic);
scope.Span.SetTag("kafka.partition", report.Partition);
scope.Span.SetTag("kafka.offset", report.Offset);
return(report);
}
}