Serverless API Resilience
Build a production-grade serverless REST API with API Gateway, Lambda, and DynamoDB. Implement resilience patterns including retry logic, DLQ error handling, throttling, concurrency limits, and operational dashboards -- core SAP-C02 architecture patterns.
Lab Overview
Design and deploy a complete serverless REST API that demonstrates real-world resilience patterns tested in the SAP-C02 exam. Create a DynamoDB table as the data store, deploy two Python Lambda functions for order creation and retrieval, and front them with API Gateway with throttling controls. Implement dead-letter queue error handling for failed Lambda invocations and configure reserved concurrency limits. Build an operational CloudWatch dashboard with invocation metrics, error rates, API Gateway response codes, DynamoDB consumed capacity, and DLQ message visibility. Test the system end-to-end: verify successful requests, throttling behavior (429 responses), error handling for invalid inputs, and DLQ routing. Covers serverless architecture design, operational excellence, and reliability patterns from SAP-C02 Domain 1 (Design Resilient Architectures) and Domain 2 (Design High-Performing Architectures).
What You'll Learn
Deploy a serverless REST API using API Gateway, Lambda, and DynamoDB
Implement Lambda reserved concurrency and SQS dead-letter queues
Configure API Gateway throttling and stage deployment
Test resilience patterns including throttling, error handling, and DLQ routing
Build CloudWatch operational dashboards for serverless observability
Prerequisites
Understanding of AWS Lambda, API Gateway, and DynamoDB
Familiarity with IAM roles and policies
Basic Python and AWS CLI proficiency
Technologies Covered
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