feat(core): Add span.spanContext()
#10037
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mydea
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AbhiPrasad
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Jan 5, 2024
Lms24
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Jan 8, 2024
packages/core/src/utils/spanUtils.ts
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| export function spanIsSampled(span: Span): boolean { | ||
| const { traceFlags } = span.spanContext(); | ||
| // eslint-disable-next-line no-bitwise | ||
| return Boolean(traceFlags & TraceFlagSampled); | ||
| } |
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Can we add a reference to OTel for this bit operation? I assume there's some documentation around the bit fields or masks?
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Yeah, I'll reference where this comes from 😅
packages/core/src/utils/spanUtils.ts
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| export const TraceFlagNone = 0x0; | ||
| // eslint-disable-next-line no-bitwise | ||
| export const TraceFlagSampled = 0x1 << 0; |
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good point, makes more sense!
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Yeah, I think so, I copied this from OTEL, not sure why they have this weird syntax - it is the same, right? 🤔
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I think so. Maybe they do it just for clarity?
0x1 << 0 // sampled flag
0x1 << 1 // another flagbut yes, it's identical
> 0x1 === 0x1 << 0
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I updated it and added a comment that this is aligned to how this is in OTEL!
Lms24
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Jan 8, 2024
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I get this error after upgrading |
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@mustafa0x can you make sure you have no |
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@mydea deleting node_modules and pnpm-lock.yaml did indeed fix! In pnpm-lock.yaml I noticed Thanks! |
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This will replace
spanId,traceIdandsampledlookups.Because the bitwise format of OTEL is a bit weird IMHO to check if a span is sampled, I also added a utility
spanIsSampled(span)method to abstract this away.