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314-frameworks-spring-kafka

Use when you need to design or implement Kafka messaging in Spring Boot — including topic design, producer/consumer implementation, JSON serialization with Boot factory customizers, Testcontainers `@ServiceConnection` integration tests, retries and dead-letter topics, idempotency, and error handling. This should trigger for requests such as Add Kafka in Spring Boot; Review Spring Kafka consumers; Improve retries and DLT in Spring Kafka. Part of cursor-rules-java project

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SKILL.md
Quality
Evals
Security

Spring Boot — Kafka messaging

Apply Spring Kafka guidance with concrete examples for design, implementation, and error handling.

Constraints

Compile before messaging refactors; verify after changes.

  • MANDATORY: Run ./mvnw compile or mvn compile before applying any change
  • SAFETY: If compilation fails, stop immediately
  • VERIFY: Run ./mvnw clean verify or mvn clean verify after applying improvements
  • BEFORE APPLYING: Read the reference for detailed rules and examples

When to use this skill

  • Add Kafka in Spring Boot
  • Review Spring Kafka consumers/producers
  • Improve retries, dead-letter topics, or idempotency in Spring Kafka

Workflow

  1. Read reference and assess project context

Read references/314-frameworks-spring-kafka.md and inspect current messaging setup before proposing changes.

  1. Gather scope and decide target improvements

Identify reliability and throughput goals and define the minimum safe set of changes.

  1. Apply framework-aligned changes

Implement/refactor Spring Kafka configuration, producer/consumer logic, and failure handling.

  1. Run verification and report results

Execute build/tests and summarize what changed, what was verified, and follow-up actions.

Reference

For detailed guidance, examples, and constraints, see references/314-frameworks-spring-kafka.md.

Repository
jabrena/cursor-rules-java
Commit

dcf0eaa

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