AWS04 · AWS cloud engineering

Lambda, EventBridge & SQS Flow

EventBridge routes order events to an SQS queue and a Lambda consumer, with a dead-letter queue.

📶 L300⏱ 60 min🧪 Live lab

🎯 You will learn to

Route events with rules
Buffer with SQS
Use a DLQ

🧪 Live environment

Runs entirely in your browser: nothing is installed, no real cloud account is used and your code is never sent to our server.

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✅ Steps & checkpoints

Publish an order event
Watch the rule match
Fail the consumer
Check the DLQ

🗺️ EventBridge to SQS and Lambda

A rule matches order events and sends them to SQS; Lambda consumes in batches with a dead-letter queue.

The 2D diagram shows the exact flow, ports and trust boundaries. The 3D scene is a concept view of the same parts; packets travel along the same arrows.

🤔 Think about it

Why put a queue between the event and the function?

Your answer (kept only on this device)

🛡️ Safety & cost

Mock mode by default. Real AWS practice is opt-in: use a sandbox account, AWS Budgets and least-privilege roles.

🧹 Cleanup

Delete the CloudFormation stack and check Cost Explorer the next day.

📚 Reference documents

Official sources, checked on 5 Nov 2026. Cloud services change often; check the official page before relying on a feature. All references