Which solution will meet these requirements MOST cost-effectively?
Use Amazon Simple Notification Service (Amazon SNS) to process the data through an HTTP or HTTPS endpoint.
Use AWS Step Functions to process the data as Standard Workflows.
Use AWS Step Functions to process the data as Synchronous Express Workflows.
Use AWS Step Functions to process the data as Asynchronous Express Workflows.
Explanations:
Amazon SNS is not designed for handling complex workflows or ensuring “at least once” processing of transactions. It only provides message delivery and not orchestration or guarantees for processing at scale.
AWS Step Functions Standard Workflows are designed for long-running processes, with higher costs. They are not optimal for processing tens of thousands of transactions per second at low cost.
AWS Step Functions Synchronous Express Workflows are designed for low-latency workflows but have higher cost than Asynchronous Express Workflows, making them less cost-effective for this use case.
AWS Step Functions Asynchronous Express Workflows are designed to handle high throughput, low-latency tasks at a very low cost, providing “at least once” processing for high-volume, short-duration tasks.
If memory serves me right, the answer is:
Use AWS Step Functions to process the data as Asynchronous Express Workflows.