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How to Build Node.js Failure Metrics Dashboards and Email Alerts for SaaS

Short answer: emit one custom counter for each operational failure, put those counters on a small dashboard, and have a Node.js job poll short windows for threshold breaches before handing…

  • Emit custom counter for each operational failure in Node.js
  • Use Node.js job to poll for threshold breaches before sending alerts
  • Include idempotency key in metric payload to prevent double-counting

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