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Delivery Exception Detection — Node.js Metrics API Queries Feeding Lambda Webhooks

Short answer: for a small Node.js notification service, poll one delivery-failure metric from a separate scheduled function, evaluate a versioned rule, and send a deduplicated webhook; move to a full…

  • Node.js notification service monitors delivery failures via metric
  • Observer queries metric, evaluates versioned rule, sends deduplicated webhook
  • Solution used while alert surface small, detection latency acceptable

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