- Make sure you copy the `.env.example` to `.env` and add the appropriate tokens (e.g. `SENTRY_AUTH_TOKEN` can be created on the Sentry dashboard). If this is not required, you can remove it from `eas.json` and `package.json`, as well as any mentions in the code.
- If you want to use Expo EAS on your own builds without ejecting from Expo, make sure to change the `owner` as well as `extra.eas.projectId` properties. If you do not have an Expo account, you may remove these properties.
- For some reason, the typescript compiler chokes on platform-specific files (e.g. `foo.native.ts`) but only when compiling for Web thus far. Therefore we always have one version of the file which doesn't use a platform specifier, and that should be the Web version. ([More info](https://stackoverflow.com/questions/44001050/platform-specific-import-component-in-react-native-with-typescript).)
On build success, access the application at [http://localhost:8100/](http://localhost:8100/). Subsequent changes require re-running the above steps in order to be reflected.
## Various notes
### Debugging
- Note that since 0.70, debugging using the old debugger (which shows up using CMD+D) doesn't work anymore. Follow the instructions below to debug the code: https://reactnative.dev/docs/next/hermes#debugging-js-on-hermes-using-google-chromes-devtools
### Developer Menu
To open the [Developer Menu](https://docs.expo.dev/debugging/tools/#developer-menu) on an `expo-dev-client` app you can do the following:
- Android Device: Shake the device vertically, or if your device is connected via USB, run adb shell input keyevent 82 in your terminal
- Android Emulator: Either press Cmd ⌘ + m or Ctrl + m or run adb shell input keyevent 82 in your terminal
- iOS Device: Shake the device, or touch 3 fingers to the screen
- iOS Simulator: Press Ctrl + Cmd ⌘ + z on a Mac in the emulator to simulate the shake gesture, or press Cmd ⌘ + d
### Running E2E Tests
- Make sure you've setup your environment following above
- Make sure Metro and the dev server are running
- Run `yarn e2e`
- Find the artifacts in the `artifact` folder
### Polyfills
`./platform/polyfills.*.ts` adds polyfills to the environment. Currently this includes:
- TextEncoder / TextDecoder
### Sentry sourcemaps
Sourcemaps should automatically be updated when a signed build is created using `eas build` and published using `eas submit` due to the postPublish hook setup in `app.json`. However, if an update is created and published OTA using `eas update`, we need to the take the following steps to upload sourcemaps to Sentry:
- Run eas update. This will generate a dist folder in your project root, which contains your JavaScript bundles and source maps. This command will also output the 'Android update ID' and 'iOS update ID' that we'll need in the next step.
- Copy or rename the bundle names in the `dist/bundles` folder to match `index.android.bundle` (Android) or `main.jsbundle` (iOS).
- Next, you can use the Sentry CLI to upload your bundles and source maps:
- release name should be set to `${bundleIdentifier}@${version}+${buildNumber}` (iOS) or `${androidPackage}@${version}+${versionCode}` (Android), so for example `com.domain.myapp@1.0.0+1`.
-`dist` should be set to the Update ID that `eas update` generated.
