aws-sns

About aws-sns

Manages AWS Simple Notification Service for production-grade pub/sub messaging. Use when asked to: set up SNS topic with dead letter queue, configure message deduplication for FIFO topics, implement cross-account SNS topic access, set retry policies and backoff for failed deliveries, handle idempotent message processing, configure cross-region SNS subscriptions, implement SNS to SQS fanout with DLQ, or troubleshoot SNS delivery failures and message loss.

管理用于生产级发布/订阅消息的 AWS Simple Notification Service。使用场景包括：为 SNS 主题设置死信队列（DLQ）、为 FIFO 主题配置消息去重、实现跨账户 SNS 主题访问、为失败投递设置重试策略和回退、处理幂等消息处理、配置跨区域 SNS 订阅、实现带 DLQ 的 SNS 到 SQS 的扇出，或排查 SNS 投递失败和消息丢失。