instrumentation

Source code of released version | Source code of development version

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A read-only, best-effort stream of lifecycle events for the three server-side primitives of a Meteor app — methods, publications, and DDP connections — without patching Meteor's internals. It is the supported foundation that observability tools (OpenTelemetry adapters, APMs, custom logging) build on.

1import { Instrumentation } from 'meteor/instrumentation';
2
3Instrumentation.on('method.end', (event) => {
4  console.log(`${event.name} took ${event.durationMs}ms`, event.traceId);
5});

Events: method.start / method.end / method.error, publication.start / publication.ready / publication.stop / publication.error, ddp.connection.open / ddp.connection.close.

Payloads are bounded and redacted by default: arguments and results are only included as bounded previews when explicitly opted in, and the Accounts methods that carry credentials or tokens are always fully redacted.

See the full API documentation for Instrumentation.configure, per-method capture policies, and the complete event reference.