spring-kafka

I am new to spring-kafka-template . I tried some basic stuff in it and they are working fine. But I am trying to implement some concepts mentioned at Spring Docs like : Offset Seeking Acknowledging listeners I tried to find some example for it over net but was unsuccessful. The thing only I found is its source code. We have a same issue as mentioned in this post Spring kafka consumer, seek offset at runtime . But there is no example available to implement the same. Can someone give any example on how to implement them? Thanks in advance. You should use ConsumerSeekAware for that purpose to

Trying to figure out if I can write unit test for @KafkaListener using spring-kafka and spring-kafka-test. My Listener class. public class MyKafkaListener { @Autowired private MyMessageProcessor myMessageProcessor; @KafkaListener(topics = "${kafka.topic.01}", groupId = "SF.CLIENT", clientIdPrefix = "SF.01", containerFactory = "myMessageListenerContainerFactory") public void myMessageListener(MyMessage message) { myMessageProcessor.process(message); log.info("MyMessage processed"); }} My Test class : @RunWith(SpringRunner.class) @DirtiesContext @EmbeddedKafka(partitions = 1, topics = {"I1.Topic

Anyone know if a single listener can listens to multiple topic like below? I know just "topic1" works, what if I want to add additional topics? Can you please show example for both below? Thanks for the help! @KafkaListener(topics = "topic1,topic2") public void listen(ConsumerRecord<?, ?> record, Acknowledgment ack) { System.out.println(record); } or ContainerProperties containerProps = new ContainerProperties(new TopicPartitionInitialOffset("topic1, topic2", 0)); Yes, just follow the @KafkaListener JavaDocs: /** * The topics for this listener. * The entries can be 'topic name', 'property

In my Spring Boot/Kafka application before the library update, I used the following class org.telegram.telegrambots.api.objects.Update in order to post messages to the Kafka topic. Right now I use the following org.telegram.telegrambots.meta.api.objects.Update . As you may see - they have different packages. After application restart I ran into the following issue: [org.springframework.kafka.KafkaListenerEndpointContainer#1-0-C-1] o.s.kafka.listener.LoggingErrorHandler : Error while processing: null org.apache.kafka.common.errors.SerializationException: Error deserializing key/value for

Can I please check with the community what is the best way to listen to multiple topics, with each topic containing a message of a different class? I've been playing around with Spring Kafka for the past couple of days. My thought process so far: Because you need to pass your deserializer into DefaultKafkaConsumerFactory when initializing a KafkaListenerContainerFactory. This seems to indicate that if I need multiple containers each deserializing a message of a different type, I will not be able to use the @EnableKafka and @KafkaListener annotations. This leads me to think that the only way to