Building Decoupled Applications by Using Amazon SQS

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.