feat(core): Add getTraceData function
#13134
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packages/node/src/utils/meta.ts
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| * @returns an object with the two meta tags. The object keys are the name of the meta tag, | ||
| * the respective value is the content. | ||
| */ | ||
| export function getTracingMetaTags( |
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m: Can we think of a different name here? IMHO this sounds to me as if that would return the actual tag elements, but it returns strings. What about e.g. getTraceData or something along these lines...?
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That's a good point. I chose this return type because returning one (or two) string(s) with rendered HTML is too specific of a return type to cover all use cases (e.g. see #8843 (comment)).
I couldn't really come up with a better return type that's still versatile enough but simpler than the current one to use.
So I guess we give it a more general name then. Just a bit unhappy that it's not as simple as in laravel but at the same time I wanna avoid exposing two functions 😅
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I think the return type is good (more generic, and easier to port)! We can also use something like getTraceMetaTagValues, for example? 🤔
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yeah let's go with that, thx!
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l: I'd probably just have gone with getTraceData and not try to return meta tag names with them. I feel like it's obvious what they should be, and it's not like you actually read them out when you used them.
Would just return { sentryTrace: string, baggage: string | undefined }.
But feel free to disregard.
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getTracingMetaTags functiongetTraceMetaTagValues function
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getTraceMetaTagValues functiongetTraceMetaTagValues function
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I agree with @andreiborza, getTraceData feels like a better fit. There is nothing in the implementation or return value of getTracingMetaTags that indicates that it has to do with meta tags. Someone can use this helper to get values that they can serialize across an iframe for example.
Here's how I'd like us to approach this, but please feel free to adjust based what you find during your implementation.
packages/node/src/utils/meta.tsshould instead live in@sentry/coreand be namedgetTraceData. This way non-node runtimes also get access to it.- We expose another helper that is similar to the logic in
packages/astro/src/server/middleware.ts, that generates meta tags as strings<meta XXX>. This should probably be calledgetTracingMetaTags(and also live in@sentry/core).
Now we have two workflows for users.
Use generated HTML? Use the meta tag helper and just insert that into your HTML document in the right place. Very easy API surface for users because usage is basically like:
const sentryMetaTags = getTracingMetaTags()
renderHtml(`
<html>
<head>
${sentryMetaTags}
</head>
</html>
`);Want to get access to the these values to serialize in another way because of your super custom instrumentation setup? no problem just call getTraceData directly and do what you need to do.
Afterwards, we probably want to refactor all of our instrumentation to use getTraceData instead of manually calling generateSentryTraceHeader and dynamicSamplingContextToSentryBaggageHeader everywhere.
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Thanks for the review @AbhiPrasad! I like your suggestion. I was a bit hesitant about exposing two functions before but since we can't find a good, universal API for one function it's better to split. I'll repurpose this PR to add the more universal |
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getTraceMetaTagValues functiongetTraceData function
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I reworked the PR. Would appreciate another round of reviews 🙏 |
Co-authored-by: Andrei <[email protected]>
This PR adds a
getTraceDatafunction to the@sentry/corepackage and re-exports it in none-browser SDKs inheriting from it.The logic was taken from the
getTraceMetaTagValuesfunction in the Astro SDK but I made some changes to its return type and, after feedback, generalized it to be used whenever we need to propagate trace data in our instrumentation.Therefore, we simply return an object where the keys denote the trace data name (
sentry-traceorbaggage) and the values the respective content.This function is added for two reasons
getTracingMetaTagshelper function to Node SDK #8843. In a follow-up PR, I'm gonna add a second function that renders stringified HTML tags directly for ease of use.ref #8843
ref #8520