Application Integration & Messaging

A fully managed front door for your APIs — routing, throttling, authentication, and request/response transformation, without running your own API layer.

A fully managed message queue for decoupling services — buffering work between producers and consumers so neither depends on the other being available at the same instant.

Fanning a single event out to many subscribers with SNS, and routing events between many producers and consumers based on content with EventBridge.

Real-time, ordered, replayable data streaming at massive scale — for when you need many consumers reading the same continuous flow of events, not just one-time delivery.

The managed-broker alternative to SQS/SNS — Amazon MQ for lift-and-shift of existing ActiveMQ/RabbitMQ workloads, and MSK for fully-managed Apache Kafka.

Using SNS filter policies to route a single topic's messages to the right subscribers based on message attributes, instead of broadcasting every message to every subscriber.

A deep look at how SQS dead letter queues work under the hood — maxReceiveCount, redrive policies, inspecting and reprocessing failed messages, and alerting on DLQ depth as a production health signal.