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Stop 08 · Serverless & Event-Driven ArchitectureTopics · 5/9

Message Queues (SQS, Pub/Sub)

Part of the Cloud Computing Roadmap

In short

A buffer between producers and consumers of messages — decoupling services so a slow or temporarily unavailable consumer doesn't block the producer, and enabling reliable, asynchronous processing.

How to learn this

  1. 1Set up a message queue and practice sending and receiving a message.
  2. 2Learn the difference between a queue (one consumer per message) and a topic/pub-sub (many consumers per message).
  3. 3Understand dead-letter queues and why they matter for handling repeatedly failing messages.

More topics at this stop

Serverless FundamentalsFunctions as a Service (Lambda, Cloud Functions)API GatewayEvent-Driven Architecture BasicsEvent Buses (EventBridge)Serverless Databases (DynamoDB On-Demand)Cold Starts & Performance ConsiderationsWhen Serverless Isn't the Right Fit

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