in src/main/java/com/epam/digital/data/platform/starter/kafka/config/KafkaProducerConfig.java [50:53]
public <I> ProducerFactory<String, I> producerFactoryCustomSerializers(
Serializer<String> keySerializer, Serializer<I> valueSerializer) {
return new DefaultKafkaProducerFactory<>(producerConfigs(), keySerializer, valueSerializer);
}