public override Task <OperateResult> PublishAsync(string keyName, string content)
{
try
{
var config = _kafkaOptions.AskafkaConfig();
var contentBytes = Encoding.UTF8.GetBytes(content);
using (var producer = new Producer(config))
{
var message = producer.ProduceAsync(keyName, null, contentBytes).Result;
if (!message.Error.HasError)
{
_logger.LogDebug($"kafka topic message [{keyName}] has been published.");
return(Task.FromResult(OperateResult.Success));
}
else
{
return(Task.FromResult(OperateResult.Failed(new OperateError
{
Code = message.Error.Code.ToString(),
Description = message.Error.Reason
})));
}
}
}
catch (Exception ex)
{
_logger.LogError($"kafka topic message [{keyName}] has benn raised an exception of sending. the exception is: {ex.Message}");
return(Task.FromResult(OperateResult.Failed(ex)));
}
}
private void InitKafkaClient()
{
_kafkaOptions.MainConfig.Add("group.id", _groupId);
var config = _kafkaOptions.AskafkaConfig();
_consumerClient = new Consumer <Null, string>(config, null, StringDeserializer);
_consumerClient.OnMessage += ConsumerClient_OnMessage;
_consumerClient.OnError += ConsumerClient_OnError;
}