sentry react-native performance not recording anything

Question

I am using “@sentry/react-native”: “^2.1.0” and trying to enable performance monitoring but so far nothing gets sent. According to the docs, doing tracesSampleRate: 1.0, in the initialization is all it takes. Is there anything else needed? Configuration in the dashboard (i saw the number 300 under Performance in the settings but I don’t know what it means exactly).

So far, I am using the app normally but not seeing anything in the performance part of the dashboard. I have tired executing methods that take more than 20 seconds to 1 minute…nothing changes. What kind of events does it take? or how i can simply stimulate some action that can be shown in performance dashboard?

Answer 1

Version 2.1.0 includes the Performance Monitoring API but doesn't start a transaction automatically. You need to use the API to start and finish a transaction.

There are docs on how to do that here.

The next version (due to next week) will include auto instrumentation if you're using the routers React Navigation v4 or v5. And it'll include spans automatically for fetch and xhr requests.

If you're not using either of those routers, you can continue to call startTransaction programatically and the fetch/xhr integrations will add the spans to the transaction.

You can follow the GitHub repository for updates (like releases) to keep up with the additions. More routers and integrations will follow like React Native Navigation from Wix.

There's also a dev community on Sentry's Discord that you can use to discuss developing integrations with Sentry and other SDK related topics.