feat(opentelemetry): Add tracingChannel utility for context propagation#20358
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feat(opentelemetry): Add tracingChannel utility for context propagation#20358
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Pull request overview
Adds a Node.js-only tracingChannel() utility to @sentry/opentelemetry to enable OpenTelemetry context propagation for node:diagnostics_channel tracing channels, with accompanying packaging and tests.
Changes:
- Added
src/tracingChannel.tsimplementingtracingChannel()with ALS-backed context propagation viabindStore. - Added a new
./tracingChannelpackage subpath export and Rollup entrypoint to build it separately from the main bundle. - Added Vitest coverage validating active-span behavior, nesting/parenting, and context non-leakage.
Reviewed changes
Copilot reviewed 4 out of 4 changed files in this pull request and generated 3 comments.
| File | Description |
|---|---|
packages/opentelemetry/src/tracingChannel.ts |
Implements the tracingChannel() wrapper and context binding logic. |
packages/opentelemetry/test/tracingChannel.test.ts |
Adds unit tests for span activation, parent/child relationships, and context isolation. |
packages/opentelemetry/rollup.npm.config.mjs |
Builds tracingChannel.ts as a separate entrypoint to keep Node-only deps out of the main bundle. |
packages/opentelemetry/package.json |
Exposes ./tracingChannel subpath with ESM/CJS + types outputs. |
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…context propagation Vendors and adapts the `otel-tracing-channel` package into `@sentry/opentelemetry`, providing a drop-in wrapper around Node.js `TracingChannel` that automatically binds OTel context propagation via `bindStore`. Uses our public `getAsyncLocalStorageLookup()` API to access the ALS instead of relying on OTel private internals. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
…a framework held together by ductape
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timfish
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Implements HTTP server instrumentation for both `h3` and `srvx` by listening to their tracing channel events. - `h3` TC PR: h3js/h3#1251 - `srvx` TC PR: h3js/srvx#141 Closes #18123 --- **This PR is part of a stack:** - #20358 - #19224 - #19225 👈 - #19304 --------- Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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logaretm
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Implements HTTP server instrumentation for both `h3` and `srvx` by listening to their tracing channel events. - `h3` TC PR: h3js/h3#1251 - `srvx` TC PR: h3js/srvx#141 Closes #18123 --- **This PR is part of a stack:** - #20358 - #19224 - #19225 👈 - #19304 --------- Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
logaretm
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Implements HTTP server instrumentation for both `h3` and `srvx` by listening to their tracing channel events. - `h3` TC PR: h3js/h3#1251 - `srvx` TC PR: h3js/srvx#141 Closes #18123 --- **This PR is part of a stack:** - #20358 - #19224 - #19225 👈 - #19304 --------- Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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otel-tracing-channelinto@sentry/opentelemetrytracingChannel()wrapper around Node.jsTracingChannelthat automatically binds OTel context propagation viabindStoregetAsyncLocalStorageLookup()API to access the ALS instead of relying on OTel private_asyncLocalStorageinternalssubscribe/unsubscribeaccept partial subscriber objects so callers only provide handlers they needThe util is exposed in a subpath export because nextjs does not externalize
node:diagnostic_channelsand will crash.