Weather alerts published to Amazon SNS must fan into a Lambda that…

Question

Weather alerts published to Amazon SNS must fan into a Lambda that opens incident tickets. How should the developer connect them?

Accepted Answer

Subscribe the Lambda function to the SNS topic so each published alert can invoke the ticket-writing handler. — SNS is the town loudspeaker; subscribe Lambda and each alert can open a ticket without the weather publisher knowing about your tracker. Tailing a log file on one EC2 box is not fan-in notification processing.

Answer

Configure SNS to archive alerts only to S3 and have Lambda invent ticket text without subscriptions.

Answer

Have a single EC2 instance poll an SNS HTTPS endpoint by scraping the AWS console HTML.

Answer

Remove SNS and have API Gateway synchronously scrape third-party weather HTML on every citizen page load.

Weather alerts published to Amazon SNS must fan into a Lambda that opens incident tickets. How should the developer connect them?

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