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JavaScript Core

Sentry's React Native SDK works out of the box with applications using JavaScript Core (JSC) engine. To see readable stack traces in the product source maps need to be uploaded to Sentry. This guide explains how to manually upload source maps from JSC engine.

The easiest way to configure automatic source maps upload is to use the Sentry Wizard:

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npx @sentry/wizard@latest -i reactNative

To manually upload source maps, first, you need to generate the source maps and bundle. Then compile the Hermes bytecode bundle, and finally upload the source map to Sentry.

Start by adding Sentry React Native Metro Plugin to your metro.config.js:

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const { getDefaultConfig, mergeConfig } = require("@react-native/metro-config");
const {
  createSentryMetroSerializer,
} = require("@sentry/react-native/dist/js/tools/sentryMetroSerializer");

const config = {
  serializer: {
    customSerializer: createSentryMetroSerializer(),
  },
};

const m = mergeConfig(getDefaultConfig(__dirname), config);
module.exports = m;

Generate the React Native Packager (Metro) bundle and source maps:

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npx react-native bundle \
  --dev false \
  --minify true \
  --platform android \
  --entry-file index.js \
  --reset-cache \
  --bundle-output index.android.bundle \
  --sourcemap-output index.android.bundle.map

Make sure sentry-cli is configured for your project and set up your environment variables:

.env
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SENTRY_ORG=example-org
SENTRY_PROJECT=example-project
SENTRY_AUTH_TOKEN=sntrys_YOUR_TOKEN_HERE

Upload the bundle and source map to Sentry:

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node_modules/@sentry/cli/bin/sentry-cli sourcemaps upload \
  --strip-prefix /path/to/project/root \
  index.android.bundle index.android.bundle.map
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Package:
npm:@sentry/react-native
Version:
5.22.1
Repository:
https://github.com/getsentry/sentry-react-native