A single malformed Kafka message can silently halt your entire consumer group. If you've ever been paged at 2 AM because messages stopped processing and your consumer lag was climbing, there's a good chance you were dealing with a poison pill. Here's how to handle it in a reactive Spring Boot application...
When integrating Kafka consumers with reactive OAuth2 for securing outbound HTTP calls, a common pitfall arises: Kafka processing typically operates in a background, non-HTTP context. This means there's no `ServerWebExchange` available, which is a core component of the reactive web stack that exposes the current HTTP request/response and request-scoped attributes...