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fix: Make it also work if someone passes request obj #2713

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merged 1 commit into from Jul 1, 2020
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21 changes: 14 additions & 7 deletions packages/apm/src/integrations/tracing.ts
Expand Up @@ -4,6 +4,7 @@ import { Event, EventProcessor, Integration, Severity, Span, SpanContext, Transa
import {
addInstrumentationHandler,
getGlobalObject,
isInstanceOf,
isMatchingPattern,
logger,
safeJoin,
Expand Down Expand Up @@ -1019,18 +1020,24 @@ function fetchCallback(handlerData: { [key: string]: any }): void {
if (activity) {
const span = activity.span;
if (span) {
const request = (handlerData.args[0] = handlerData.args[0] as string | Request);
const options = (handlerData.args[1] = (handlerData.args[1] as { [key: string]: any }) || {});
if (options.headers) {
if (typeof options.headers.append === 'function') {
options.headers.append('sentry-trace', span.toTraceparent());
} else if (Array.isArray(options.headers)) {
options.headers = [...options.headers, ['sentry-trace', span.toTraceparent()]];
let headers = options.headers;
if (isInstanceOf(request, Request)) {
headers = (request as Request).headers;
}
if (headers) {
if (typeof headers.append === 'function') {
headers.append('sentry-trace', span.toTraceparent());
} else if (Array.isArray(headers)) {
headers = [...headers, ['sentry-trace', span.toTraceparent()]];
} else {
options.headers = { ...options.headers, 'sentry-trace': span.toTraceparent() };
headers = { ...headers, 'sentry-trace': span.toTraceparent() };
}
} else {
options.headers = { 'sentry-trace': span.toTraceparent() };
headers = { 'sentry-trace': span.toTraceparent() };
}
options.headers = headers;
}
}
}
Expand Down