How to get app's package name in Expo app (in React Native). This is a quick and dirty hack for getting the app's package name when testing stuff out and switching between the managed and bare (ejected) workflow. In my case this was heplful when linking the user to the app's notification settings page,

pkgName.ts

import { expo as appJson } from '../app.json';

// @ts-ignore
const packageName: string = appJson.android.package ?? 'host.exp.exponent';
// ^ Gets the apps package name, however if the `Expo Go` app is used it defaults to it's package name.