symfony:symfony-messenger

To handle failed messages in Symfony Messenger, you configure retry strategies and a failure transport. This ensures temporary issues trigger automatic retries, while permanent failures route to a dedicated transport for inspection and poison message handling.

Symfony Messenger guarantees at-least-once delivery, meaning handlers may process duplicate messages during retries. Designing idempotent handlers ensures safe re-execution without causing duplicate side effects or data corruption.

The best way to design idempotent handlers for Symfony asynchronous workflows is to implement logic that safely handles duplicate message processing. This guarantees consistent results regardless of how many times a message is delivered or retried.

You achieve operational visibility into Symfony Messenger async workflows by configuring clear logging of successes and failures. This provides insight into the background task status, helping you monitor message queuing and handler execution.

Yes, you can use Symfony Messenger for background tasks like an email sending service. Messages are processed asynchronously with automatic retries for temporary network issues and clear logging of successes and failures.