public async Task Publish <T>(T data) where T : IEvent
{
var config = new ProducerConfig
{
BootstrapServers = _parameters.GetStringParameter("KAFKA_BOOTSTRAP_SERVERS"),
// Debug = "all"
};
// If serializers are not specified, default serializers from
// `Confluent.Kafka.Serializers` will be automatically used where
// available. Note: by default strings are encoded as UTF8.
using (var p = new ProducerBuilder <Null, string>(config).Build())
{
try
{
var dr = await p.ProduceAsync(GetTopicName <T>(), new Message <Null, string> {
Value = JsonSerializer.Serialize(data)
});
_logger.LogDebug($"Delivered '{dr.Value}' to '{dr.TopicPartitionOffset}'");
}
catch (ProduceException <Null, string> e)
{
_logger.LogError($"Delivery failed: {e.Error.Reason}");
}
catch (Exception e)
{
_logger.LogError($"Delivery failed: {e.GetFullMessage()}");
throw;
}
}
}
public async Task Publish <T>(T data) where T : IEvent
{
var config = new ProducerConfig
{
BootstrapServers = _parameters.GetStringParameter("KAFKA_BOOTSTRAP_SERVERS"),
// Debug = "all"
};
var schemaRegistryConfig = new SchemaRegistryConfig
{
Url = _parameters.GetStringParameter("KAFKA_SCHEMA_REGISTRY_URLS")
};
using (var schemaRegistry = new CachedSchemaRegistryClient(schemaRegistryConfig))
using (var p = new ProducerBuilder <Null, T>(config)
.SetValueSerializer(new AvroSerializer <T>(schemaRegistry).AsSyncOverAsync())
.SetErrorHandler((_, e) => _logger.LogError($"Exception has occured when trying to publish an event : {e.Reason}"))
.Build())
{
try
{
var dr = await p.ProduceAsync(GetTopicName <T>(), new Message <Null, T> {
Value = data
});
_logger.LogDebug($"Delivered '{dr.Value}' to '{dr.TopicPartitionOffset}'");
}
catch (ProduceException <Null, string> e)
{
_logger.LogError($"Delivery failed: {e.Error.Reason}");
}
catch (Exception e)
{
_logger.LogError($"Delivery failed: {e.GetFullMessage()}");
throw;
}
}
}