EventBridge
- Serverless pub/sub event bus for internal, cross-account, and AWS service events
- Publish to bus (400/s), subscribe with fine-grained filter rules (100/bus), multiple targets and event matching
- At-least-once, 24hr retry with backoff, HA, IAM, 99.99% SLA, auto-scaling, pay-per-use, monitoring, 0.5s latency
- Replaces RabbitMQ and webhooks for AWS clients
- SNS: cheaper, less latency, less filtering, more coupling
- Plays nicely with Lambda and 14 other targets