aws-serverless-eda

To build an event-driven architecture on AWS, this Skill guides you through integrating Lambda, EventBridge, SQS, and SNS to implement patterns like Event Router and Pub/Sub for robust, scalable event processing. It follows AWS Well-Architected Framework principles to ensure high availability and fault tolerance.

The best way to process asynchronous tasks in AWS serverless applications is by using queue-based processing patterns with SQS and Lambda. This approach decouples services, ensuring reliable message delivery and fault tolerance for operations like background order processing or webhook handling.

The Saga pattern with AWS Step Functions coordinates multi-step transactions across microservices by orchestrating Lambda functions and compensating actions. It ensures data consistency in distributed systems like e-commerce backends, preventing partial updates during failures.

Yes, you can use DynamoDB Streams to trigger Lambda functions for real-time stream processing in serverless architectures. This pattern allows you to react to data modifications immediately, enabling use cases like real-time analytics and reactive event-driven microservices.

To design a serverless API for user sign-ups, you route requests through API Gateway to Lambda functions, which process the logic and store data in DynamoDB. This creates a scalable, API-driven microservice without managing underlying infrastructure.

Use SQS for queue-based async processing where you need to decouple producers and consumers with message persistence, and use SNS for fan-out Pub/Sub scenarios where multiple subscribers receive the same event simultaneously. They are often combined for robust event routing.