Sending Messages with KafkaTemplate
Utilize Spring's KafkaTemplate to programmatically send messages to Kafka topics, including synchronous and asynchronous approaches.
Meet Spring's KafkaTemplate
Welcome to sending messages with Spring Boot and Kafka! At the heart of sending messages is Spring's KafkaTemplate.
- It simplifies interacting with Kafka.
- It handles connection management and serialization.
- It lets you send messages to any Kafka topic easily.
Think of it as your primary tool for producing events.
Injecting KafkaTemplate in Spring
To use KafkaTemplate, you simply inject it into your Spring component (like a service or controller). Spring Boot auto-configures it for you, provided you have the spring-kafka dependency.
You just need to declare it, and Spring handles the rest!
import org.springframework.kafka.core.KafkaTemplate;
import org.springframework.stereotype.Service;
@Service
public class MyProducerService {
private final KafkaTemplate<String, String> kafkaTemplate;
public MyProducerService(KafkaTemplate<String, String> kafkaTemplate) {
this.kafkaTemplate = kafkaTemplate;
}
}All lessons in this course
- Integrating Spring Kafka Starter
- Sending Messages with KafkaTemplate
- Customizing Producer Configurations
- Handling Producer Send Callbacks and Acknowledgments