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How do you monitor API performance in production?

Mid ASP.NET Web API
Quick Answer Monitor API performance: track request rate, error rate, and latency (p50/p95/p99) with Application Insights, Prometheus, or Datadog. Add custom metrics (business KPIs, cache hit rate). Health checks endpoint for infrastructure probes. Distributed tracing (OpenTelemetry) to trace requests across services. Alert on: error rate > 1%, p99 latency > threshold, health check failures.

Answer

Use monitoring tools:

  • Application Insights
  • Prometheus + Grafana
  • Serilog

Track duration, throughput, failure rates, response sizes.

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SugharaIQ Editorial Team Verified Answer

This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.

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Source: SugharaIQ

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