Implementing Kafka Producer and Consumer in Spring Boot - Beginner's Guide with Sample Code
A practical guide to implementing Kafka Producer and Consumer in a Spring Boot 3.x application from scratch using spring-kafka. Quickly start a broker with Docker Compose, then learn the basics of KafkaTemplate and @KafkaListener, retries and Dead Letter Topic forwarding with DefaultErrorHandler, and testing with @EmbeddedKafka—all explained with a code-centric approach.