Simple .NET producer example
Review this example code to learn how you can create a simple .NET producer. This producer is capable of producing around 36000 messages every second in development environment.
internal class Program { private static int _inFlight; private static long _delivered; private static void HandleDeliveryResult(int msgid, DeliveryResult<string, string> deliveryResult) { if (msgid % 1024 == 0) // writing to console on every message would be a bottleneck { Console.WriteLine($"Delivered '{deliveryResult.Value}' to '{deliveryResult.TopicPartitionOffset}', in flight on delivery confirmation: {_inFlight}"); } --_inFlight; ++_delivered; } private static void Main(string[] args) { using var producer = new ProducerBuilder<string, string>(new ProducerConfig { BootstrapServers = "broker:9092" }).Build(); int msgCounter = 0; var start = DateTime.Now; while (!(Console.KeyAvailable && Console.ReadKey().Key == ConsoleKey.Q || (DateTime.Now - start).TotalSeconds >= 60)) { int msgid = ++msgCounter; try { producer.Produce("topic", new Message<string, string> { Key = msgid.ToString(), Value = $"{msgid}, in flight on send: {++_inFlight}" }, result => HandleDeliveryResult(msgid, result)); } catch (ProduceException<string, string> e) { Console.WriteLine($"Produce failed: {e.Error.Reason}"); } } producer.Flush(); Console.WriteLine("average throughput: {0:N3} msg/sec", _delivered / (DateTime.Now - start).TotalSeconds); } }