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Challenge Lab: Decoupling the Café Application with Messaging Services

The café needed to improve its application’s resilience by separating key components. Instead of tightly coupling the web and order-processing layers, I implemented messaging queues to handle order requests efficiently.

What I implemented:

Set up an Amazon SQS queue to hold and manage incoming orders asynchronously

Configured Amazon SNS to notify relevant services when new orders are placed

Integrated the web and backend components using a decoupled message workflow

Tested message delivery, visibility timeout, and error handling to ensure smooth processing

Outcome:
The café’s application can now process high traffic without bottlenecks, ensuring no orders are lost even if a component fails. This approach enhanced scalability, reliability, and fault isolation across the system.