go-amqp-publisher

At-least-once delivery in Go requires enabling publisher confirms and mandatory routing flags to ensure RabbitMQ accepts and successfully routes messages. This approach guarantees messages reach the broker without silent data loss during publishing.

The durability triple consists of durable exchanges, durable queues, and persistent delivery mode. It is needed to prevent message data loss during RabbitMQ broker restarts by enforcing persistent storage across the messaging topology.

To keep database updates and RabbitMQ publishing atomic, implement a transactional outbox pattern. This provides a reliable relay mechanism ensuring state changes and message emission succeed or fail together without inconsistency.

Yes, handling unroutable messages is enforced using mandatory routing flags. This configuration ensures RabbitMQ returns messages that cannot be routed to a queue, allowing producers to detect and manage delivery failures appropriately.

Idempotent topology declaration is required to safely configure durable exchanges and queues without failing on subsequent restarts. It ensures the RabbitMQ infrastructure exists predictably before publishing persistent messages.

Publisher confirms in Go require managing asynchronous acknowledgments from RabbitMQ, adding complexity to message flow control. Producers must handle returned unroutable messages and implement retries to maintain at-least-once delivery guarantees.