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dotJS 2025

Deno developers, Node.js developers, backend engineers, observability engineers, platform engineers, DevOps engineers

Deno auto-instrumentation; OpenTelemetry tracing for HTTP; request-level trace IDs in logs; span correlation for inbound and outbound calls; Hono framework integration; exporting traces to observability backends; live coding debugging demo; tracing behavior under load; console log and trace correlation

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Live coding with Ryan Dahl: Deno and OpenTelemetryRyan Dahl20m
Live coding shows a small API that randomly throws when a generated user ID starts with "a" and how Deno auto-instruments it so trace IDs attached to console…
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