deviator206 / kafka-understanding

Simple Attempt to understand Kafka

kafka-understanding

Simple Attempt to understand Kafka

Kafka Understanding

Server's Up

2 servers to be started

> bin/zookeeper-server-start.sh config/zookeeper.properties


>bin/kafka-server-start.sh config/server.properties

Server is on!

Java Side Changes

• ProducerConfig - with ProducerFactory & kafkaTemplate - this consist of strategy for message along with template
• ConsumerConfig - with ConsumerFactory & KakfkaListenerContainerFactory
• configuration in properties file

  kafka.bootstrapAddress=localhost:9092
  

kafka.consumer.group-id=foo

Publish event

@Autowired
private KafkaTemplate kafkaTemplate;

kafkaTemplate.send("baeldung", "new msg## ");

Listen to events

@KafkaListener(topics = "baeldung" , groupId = "foo")
    public void listenGroupFoo(String message) {
        System.out.println("Received Message in group foo: " + message);
    }

Reference

• QuickStart Kafka

• SpringBoot & Kafka

• Extra Ref