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fix(node): Add LRU map for tracePropagationTargets calculation #8130

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May 16, 2023
Merged

fix(node): Add LRU map for tracePropagationTargets calculation #8130

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13 changes: 7 additions & 6 deletions packages/node/src/integrations/http.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -138,7 +138,7 @@ function _createWrappedRequestMethodFactory(
): WrappedRequestMethodFactory {
// We're caching results so we don't have to recompute regexp every time we create a request.
const createSpanUrlMap = new LRUMap<string, boolean>(100);
const headersUrlMap: Record<string, boolean> = {};
const headersUrlMap = new LRUMap<string, boolean>(100);

const shouldCreateSpan = (url: string): boolean => {
if (tracingOptions?.shouldCreateSpanForRequest === undefined) {
Expand All @@ -160,13 +160,14 @@ function _createWrappedRequestMethodFactory(
return true;
}

if (headersUrlMap[url]) {
return headersUrlMap[url];
const cachedDecision = headersUrlMap.get(url);
if (cachedDecision !== undefined) {
return cachedDecision;
}

headersUrlMap[url] = stringMatchesSomePattern(url, tracingOptions.tracePropagationTargets);

return headersUrlMap[url];
const decision = stringMatchesSomePattern(url, tracingOptions.tracePropagationTargets);
headersUrlMap.set(url, decision);
return decision;
};

return function wrappedRequestMethodFactory(originalRequestMethod: OriginalRequestMethod): WrappedRequestMethod {
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