Posted On: Oct 29, 2023

Amazon Simple Notification Service (SNS) First-In-First-Out (FIFO) topics now support a no-code option to store your FIFO topics messages, which improves the durability of your message-driven applications and offers your developers a simple way to replay past messages. Your developers can use these new capabilities to recover your applications from errors in their code, and to seamlessly expand their current applications to additional features by delivering stored messages to new subscribing systems.

Amazon SNS provides high-throughput, push-based, many-to-many messaging between distributed systems, microservices, and event-driven serverless applications. SNS Standard topics provide best-effort ordering and at-least-once-delivery, while SNS FIFO topics support strict ordering and exactly-once delivery. Both Standard and FIFO topics support message fan-out to multiple subscriptions, with high durability, security, and message filtering.

Amazon SNS now supports in-place data storage and replay for FIFO Topics in the Amazon Web Services China (Ningxia) Region, operated by NWCD, and the Amazon Web Services China (Beijing) Region, operated by Sinnet.

To learn more about Amazon SNS In-Place storage and replay for FIFO topics, see the following: