Add @netlify/otel affordances #363
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chee
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Some default instrumentations are included: - https://www.npmjs.com/package/@opentelemetry/instrumentation-http - https://www.npmjs.com/package/@opentelemetry/instrumentation-fetch - https://www.npmjs.com/package/@opentelemetry/instrumentation-undici The http and undici instrumentations are in devDependencies because their packages include non-esm code that made the serverless-functions-api repo cry when i tried to use them there. lmk if there's a better way to go about this
chee
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chee
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JakeChampion
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Jul 24, 2025
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instrumentationsandspanProcessorsHooks into the initialization, to be able to set the instrumentations and span processors that will be used by the tracer. I expect to write our own instrumentations that will be exported as extra entrypoints from this package, and for consuming applications to be able to pick and choose their faves.
I've added
extraSpanProcessersto make it easier to pop a local trace exporter to otel-desktop-viewer or the like when debugging in repos that depend on@netlify/otel.withActiveSpan(getTracer(), name, (span?) => {})convenience functionA more ergonomic API than having to repeat yourself, writing the function in one place and then conditionally calling it inside or outside a loop depending on if you got a tracer. The callback gets
Span|undefinedas its arg so you can know if you're running in a trace.I expect this to a temporary measure, that will be less necessary when we can load OpenTelemetry all the time and swap out for the
NoopSpanProcessorwhen the header is absent.