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API Canary Routing Basics

Ship changes to a slice safely

Canary deployments route a small percentage of traffic to a new version, monitor key metrics, and roll forward or back based on thresholds, reducing blast radius for risky changes.

Start Small

Send a tiny percent to the canary; keep control toggles ready.

Monitor

Watch errors, latency, and user metrics vs baseline.

Decide

Promote gradually if healthy; rollback fast on thresholds.

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