Glossary term
What is Producer / Consumer? Meaning for developers
Sends messages / processes messages. Example: API = producer; email worker = consumer.
Learn it properly · System DesignLesson 18: Message Queues: A Gentle IntroductionPlacing an order shouldn't wait on the email provider — or fail because SMS is down. How message queues let you do the essential work now and everything else reliably a moment later, with acks, retries, dead-letter queues and back pressure.