API Design · Senior · Question 35 of 75

Which metrics best describe an API's health from the consumer's point of view?

✓Correct answer: Request rate, error rate by status class and endpoint, and latency percentiles (RED), broken down per client or API key
2Number of deployed versions
3Server CPU only

Explanation

Per-client breakdowns show when one integration breaks even if global numbers look fine.

Further reading

OpenTelemetry: What is it ↗

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