Event processor migration: RequestData integration

[Lms24]

This integration populates event.request, including headers, IP, cookies, etc. We need to set all this data as attributes on the segment span. Two strategies:

• add the logic to applyScopeToSegmentSpan in captureSpan. This is preferrable from bundle-size perspective because captureSpan can be tree-shaken out for non-streaming users. But means request attribute creation isn't co-located with the integration. Might be a fine tradeoff though 🙂
  • I started a version of this for contexts in my experimental PoC branch:

    sentry-javascript/packages/core/src/spans/captureSpan.ts

    Lines 80 to 85 in 957ccf8

    	function applyScopeToSegmentSpan(segmentSpanJSON: SpanV2JSON, scopeData: ScopeData): void {
    	// TODO: Apply all scope and request data from auto instrumentation (contexts, request) to segment span
    	const { contexts } = scopeData;
    	safeSetSpanJSONAttributes(segmentSpanJSON, contextsToAttributes(contexts));
    	}

  • This also applies to other contexts kept on the scope.
• Alternatively add a processSegmentSpan implementation to the integration

[linear-code]

JS-2217