getsentry
Add tracePropagationTargets option
Problem Statement
https://develop.sentry.dev/sdk/performance/#tracepropagationtargets
The GuzzleTracingMiddleware currently propagates the sentry-trace and soon the baggage header on each instrumented request.
Solution Brainstorm
Add the tracePropagationTargets option.
What should tracePropagationTargets do? We can't do anything "automagically" in the base PHP SDK... Maybe it's feasible in the framework integrations, on the framework-provided clients.
We have to check for it in the GuzzleTracingMiddleware and add the Option. Thereafter, we have to update Laravel and Symfony as well.
That option configures when we sent the sentry-trace and baggage headers with the request.
See: https://docs.sentry.io/platforms/javascript/performance/instrumentation/automatic-instrumentation/#tracingorigins
No need for any magic or automagic anything, just statically configured by the user 😄
