SNS Fanout to SQS and Lambda — Pub/Sub Message Routing
Build an SNS fanout architecture that routes messages to SQS queues and a Lambda function, then apply subscription filter policies for attribute-based routing.
Lab Overview
Build a complete pub/sub messaging architecture on AWS using SNS, SQS, and Lambda. You will create an SNS topic with multiple subscribers, deploy a Lambda consumer, implement message filtering with subscription filter policies, and configure a dead-letter queue for failed message handling.
You'll learn to:
- Create an SNS topic and subscribe SQS queues with proper access policies
- Deploy a Lambda function as an SNS subscriber
- Publish messages and verify fanout delivery to all subscribers
- Apply subscription filter policies for attribute-based message routing
- Configure a dead-letter queue with a redrive policy on SQS
- Simulate message processing failures and observe DLQ behavior
Key Resources:
What You'll Learn
Create an SNS topic and subscribe multiple SQS queues with access policies
Deploy a Lambda function as an SNS subscriber and verify fanout delivery
Apply subscription filter policies for attribute-based message routing
Configure a dead-letter queue with a redrive policy and observe DLQ behavior
Prerequisites
Basic AWS CLI familiarity
Understanding of JSON data formats
Familiarity with IAM roles and policies
Technologies Covered
Part of a Course
This lab is part of the AWS Solutions Architect Associate (SAA-C03) course
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