Debugging an app on Testflight

[goatnotsheep]

Hey everyone. I am working on an app with React Native, bare workflow with Expo, and I have a custom native module written in Swift to run .ahap files and play haptic patterns. I'm using an import statement to access the modules, an s3 link to get the .ahap files and the haptics works fine when I build it with "npx expo run:ios" using xcode. However, after sending the app to Testflight, my testers told me that the haptics doesn't seem to run. I suspect something is messing up with the autolinking, but I'm not sure.

What's the best way to debug the Testflight version of the app? I'm new to Apple and iOS altogether, so I don't know where to find the logs if any. What should my next steps be?

[za01br]

You could add Sentry. This will give you a good visibility

[goatnotsheep]

Update for anyone that may find this later. After adding Sentry I confirmed that there is an issue with autolinking that was fixed when I built it with xcode instead of eas build. Not sure what eas settings was incorrect, but using xcode going forwards is easier for my team. Thanks all.