Published onJuly 6, 2026Stateful Kafka Streams with Spring Boot: Windows, Joins, Recovery, and PostgreSQL ViewsKafka-StreamsSpring-BootStateful-ProcessingApache-KafkaPostgreSQLReal-time-AnalyticsBuild a stateful Kafka Streams application with event-time windows, local RocksDB stores, changelog recovery, exactly-once Kafka processing, and an idempotent PostgreSQL materialized view.