Pub/Sub Patterns

Implement the publish-subscribe pattern to decouple message producers from consumers. Learn about topic design, filtering strategies, delivery guarantees, and scaling subscriber groups.

Usage

Ask about designing pub/sub systems, choosing delivery guarantees, or implementing topic hierarchies for your messaging needs.

Examples

• "How should I design topics for my e-commerce event system?"
• "What is the difference between at-least-once and exactly-once delivery?"
• "How do I implement content-based message filtering?"

Guidelines

• Design topics around business events, not technical operations
• Use consumer groups for competing consumers that share workload
• Implement idempotent consumers to handle at-least-once delivery safely
• Consider message ordering requirements when partitioning topics
• Monitor consumer lag to detect processing bottlenecks early