public KafkaMessagingProvider(IOptions <KafkaOptions> options, ILogger log) { Options = options.Value; producer = new ProducerBuilder <Null, Null>(options.Value) .SetLogHandler(KafkaLogFactory <Null, Null> .ProducerLog(log)) .SetErrorHandler(KafkaLogFactory <Null, Null> .ProducerError(log)) .SetStatisticsHandler(KafkaLogFactory <Null, Null> .ProducerStats(log)) .Build(); }