Emitting API Events Overview Build event-driven API architectures using outbound webhooks, Server-Sent Events (SSE), and message broker integration. Implement event emission from API mutations, event schema registry, subscriber management, delivery guarantees with retry logic, and event sourcing patterns for maintaining a complete audit log of API state changes. Prerequisites - Message broker: Redis Pub/Sub, RabbitMQ, Apache Kafka, or AWS SNS/SQS - Persistent storage for event log and subscriber registrations (PostgreSQL, MongoDB) - Webhook delivery infrastructure with retry queue (Bull, Cele…