sentry is too havy for JS bundle (adds 500Kb prod)

[vovkasm]

OS:

• Windows
• MacOS
• Linux

Platform:

• iOS
• Android

SDK:

• @sentry/react-native (>= 1.0.0)
• react-native-sentry (<= 0.43.2)

SDK version: 5.22.2

react-native version: 0.73.8

Are you using Expo?

• Yes
• No

Are you using sentry.io or on-premise?

• sentry.io (SaaS)
• on-premise

Configuration:

(@sentry/react-native)

const routingInstrumentation = new Sentry.ReactNavigationInstrumentation({
  enableTimeToInitialDisplay: true,
});

    Sentry.init({
      dsn: Config.SENTRY_DSN,
      environment: Config.ENVIRONMENT,
      // enabled: !__DEV__,
      enableNative: true,
      tracesSampleRate: Config.ENVIRONMENT === "development" ? 1.0 : 0.01,
      integrations: [new Sentry.ReactNativeTracing({routingInstrumentation})],
    });

---

First of all, I want to thank the team for a wonderful product that greatly helps the entire community.

However, in recent years the product has become too heavy. Its total size in the production JS bundle is equal to the size of the entire RN, about to 500Kb. This can lead to slowdown at startup for highly optimized applications.

Steps to reproduce:

• Create empty RN application
• Just add @sentry/react-native to package.json and link it according to documentations
• Build JS bundle, for ex: npx react-native bundle --entry-file index.js --platform android --dev false --bundle-output bundle0.dat --sourcemap-output bundle0.map
• Show the results: npx source-map-explorer --no-border-checks bundle0.dat bundle0.map

Actual result:

In out real application it looks like this

In clean RN project (as in repro)

Expected result:
I think it would be very good if the sentry weight was no more than 150Kb. I'm worried that people will stop using the sentry because it's so heavy, but it's a very good tool.

[vovkasm]

Potentially relative issues: #3718, #1818, #1733

[krystofwoldrich]

Hi @vovkasm,
thank you for the kind words as well for expressing the worries.

Our browsers and core JS packages rely heavily on tree shaking which is not supported our of the box in React Native.

We realize that and are looking for other options to optimalize the size of the SDK.

• Remove browser/replay from mobile bundles to lower bundle size #3718

I'll close this as a duplicate of #3718, we take this serious, I just want to keep all the discussion at one place. Please feel free to comment there as well as up vote the issue, that helps us prioritizing.