// based on https://github.com/confluentinc/examples/blob/6.1.1-post/clients/cloud/csharp/Program.cs
static async Task Main(string[] args)
{
var topic = args.Length > 0
? args[0]
: "sample-topic";
var config = Config.Create();
await TopicHelpers.TryDeleteTopic(topic, config);
await ConsumeAgainstNonExistentTopic(topic, config);
await ConsumeAndProduceMessages(topic, config);
Console.WriteLine($"Shut down complete");
}
// based on https://github.com/confluentinc/examples/blob/6.1.1-post/clients/cloud/csharp/Program.cs
static async Task Main(string[] args)
{
var topic = args.Length > 0
? args[0]
: "sample-topic";
var config = Config.Create();
await TopicHelpers.TryDeleteTopic(topic, config);
await TopicHelpers.TryCreateTopic(
topic,
numPartitions : 3,
replicationFactor : 1,
config);
await ConsumeAndProduceMessages(topic, config);
Console.WriteLine($"Shut down complete");
}
private static async Task ConsumeAgainstNonExistentTopic(string topic, ClientConfig config)
{
using var consumer = Consumer.Create(enableAutoCommit: true, topic, consumerName: "FailingConsumer 1");
Console.WriteLine($"Manually consuming non-existent topic...");
// On Kafka.Confluent 1.5.3 this will throw, so success will be false
// That creates an exception Span
// On other versions, this _won't_ throw, and _won't_ create a span
var success = consumer.Consume(retries: 1, timeoutMilliSeconds: 300);
Console.WriteLine($"Manual consume complete, success {success}");
// Create the topic and try again
await TopicHelpers.TryCreateTopic(topic, numPartitions : 3, replicationFactor : 1, config);
Console.WriteLine($"Manually consuming topic...");
// manually try and consume. Should _not_ generate any spans, as nothing to consume
// but on 1.5.3 this may generate some error spans
success = consumer.Consume(retries: 5, timeoutMilliSeconds: 300);
Console.WriteLine($"Manual consume finished, success {success}");
}