7. Application Integration

Standard

at-least-once, unlimited throughput

FIFO

exactly-once, 300/sec (or 3000 batch)

SQS: Visibility timeout default 30s (0-12h)

7. Application Integration

SQS: DLQ for failed messages

7. Application Integration

SQS: Long polling 0-20s

7. Application Integration

SQS: Message size 256 KB

7. Application Integration

SNS: Pub/Sub, push model

7. Application Integration

SNS: Fanout to SQS, Lambda, HTTP, email, SMS, mobile push

7. Application Integration

SNS: Message filtering per subscription

7. Application Integration

Event bus

default (AWS), custom, partner

EventBridge: Rules with JSON pattern matching

7. Application Integration

EventBridge: 25+ targets, 5 per rule

7. Application Integration

Scheduler

rate/cron

EventBridge: Replay events

7. Application Integration

EventBridge: Schema Registry

7. Application Integration

Pipes

point-to-point integration

Express

5 min, at-least-once, high volume

States

Task, Choice, Wait, Parallel, Map, Pass, Succeed/Fail

Service integrations

sync, .sync (job), .waitForTaskToken

REST

full features, $3.50/M

HTTP

70% cheaper, fewer features

WebSocket

real-time bi-directional