Using Sentry in React Native Expo application

Sentry is a crash reporting platform. Setting up Sentry for an Expo app is slight different than for a React Native one.

Installation

npx expo install sentry-expo
npx expo install expo-application expo-constants expo-device expo-updates @sentry/react-native
npx expo install @sentry/react-native

Initialisation

Add the following to your app’s main file such as App.js:

import * as Sentry from 'sentry-expo';

Sentry.init({
  dsn: 'YOUR DSN HERE',
  enableInExpoDevelopment: true,
  debug: true, // If `true`, Sentry will try to print out useful debugging information if something goes wrong with sending the event. Set it to `false` in production
});

Usage

Depending on which platform you are on (mobile or web), use the following methods to access any @sentry/* methods for instrumentation, performance, capturing exceptions and so on:

• For React Native, access any @sentry/react-native exports with Sentry.Native.*

• For web, access any @sentry/browser exports with Sentry.Browser.*

```plain text // Access any @sentry/react-native exports via: // Sentry.Native.*

// Access any @sentry/browser exports via: // Sentry.Browser.*

// The following example uses captureException() from Sentry.Native.* to capture errors: try { // your code } catch (error) { Sentry.Native.captureException(error); }

### **Configure a** **`postPublish`** **hook**

Add `expo.hooks` to your project's `app.json` (or `app.config.js`) file:

```plain text
{
  "expo": {
    // ... your existing configuration
    "hooks": {
      "postPublish": [
        {
          "file": "sentry-expo/upload-sourcemaps",
          "config": {
            "organization": "your sentry organization slug here",
            "project": "your sentry project name here",
            "authToken": "your auth token here"
          }
        }
      ]
    }
  }
}

Add the Config Plugin

Add expo.plugins to your project’s app.json (or app.config.js) file:

plain text { "expo": { // ... your existing configuration "plugins": ["sentry-expo"] } }