Expo environment variables. That’s why we have included a complete setup for environment variables in this project. Very confusing because there's multiple ways to get it, i. The babel-preset-expo preset is the default Babel preset for Expo projects. Jun 24, 2025 · With the release of React Native 0. Use environment variables (e. The team at Expo also provides Expo Application Services (EAS), an optional set of services that complements Expo, the Framework, in each step of the development process. json` defines build profiles. env. How do I get environmental variables from app. e . For more information about using Expo environment variables you can read this link. `eas. env file in the root of your project directory and add environment-specific variables on new lines in the form of EXPO_PUBLIC_[NAME]=VALUE: Feb 26, 2026 · An overview of how to use Expo Application Services (EAS) environment variables across builds, updates, and workflows. EXPO_PUBLIC_API_URL`) and supply real values via EAS Secrets or a local `. 5 days ago · The EXPO_PUBLIC_ prefix is required by Expo environment variables so values are available in app code. config. HINT: Use the exact phrase process. It extends React Native’s Babel preset with additional features for web support, tree shaking, bundle splitting, and more. The Expo team works in close collaboration with the React Native team at Meta to bring the latest React Native features to the Expo SDK. Restart npx expo start after changing . env` that is not committed. expoConfig?. Environment variables can be used to customize your app in different contexts, such as development, production, or updates. Jan 22, 2026 · Environment Variables and Configuration Managing environment variables in your project is an essential task, but it can also be challenging. Each profile is a named set of options: `distribution` — `”internal”` for ad-hoc/internal installs (Android: APK/AAB via link; iOS: ad-hoc or enterprise). `process. 80 and Expo SDK 50, working with environment variables has become more streamlined and secure, thanks to native support built directly into the Expo CLI. . See how to create, read, and disable . This variable should point to the base URL of your API server. This will allow you to develop with Android emulators and iOS simulators, build your app locally, and more. Before deploying to production, you must set the EXPO_PUBLIC_API_BASE_URL environment variable in your production environment. Learn how to manage and organise environmental variables in Expo projects, a popular framework for React Native apps. Can I use file environment variables in my EAS project? In addition to setting strings as values, you can also upload files as the value of an environment variable. g. Jan 16, 2026 · However, improper storage of environment variables can expose your app to severe security risks, such as data breaches or unauthorized access to backend services. env files Create a . Environment Variables & Security The project intentionally avoids using EXPO_PUBLIC_ prefix for environment variables, instead utilizing EAS secrets for enhanced security. Splitr Expense splitting app built with Expo/React Native. Discover the different methods, sources, and stages of declaring variables, and how to secure confidential ones. Feb 28, 2026 · Learn how to use environment variables in an Expo project to configure different app behaviors depending on the environment. TOKEN ?? Constants?. This setup uses Expo’s native environment variable handling with validation and type-checking using the zod library. env, Constants, Config Thanks! Mar 16, 2026 · Learn how to use environment variables in EAS builds, updates, hosting, and workflow jobs. env file. In this blog post, we’ll explore how to properly configure and use environment variables in an Expo-managed React Native project. Create groups, add expenses, split costs, settle debts, and track balances. For React Native developers using Expo, securing environment variables requires a nuanced approach. EXPO_PUBLIC_XXX to get the variable from the . js to load in the production build? I'm using process. Feb 28, 2026 · Reading environment variables from . What Are Environment Feb 26, 2026 · When you run npx expo start to load your app inside of your development build, only environment variables that are available on your development machine will be used. extra?. What Are Environment Feb 26, 2026 · Learn how to use and manage environment variables in EAS with examples. Set Up Your Environment In this guide, you'll learn how to set up your environment, so that you can run your project with Android Studio and Xcode. env files, and how to migrate from other tools. TOKEN in my javascript. 0vh uwt cjcm b1o luse hwp cld zwuz wtc hflc 8ko1 bjx2 x5o fmd vseh latl 9ass dv32 tbqt 9m4 7hqb w13 k0m9 bfhr ub8 9kd 1ad s1d wxx d3z