A unified configuration management library for React Native apps, providing environment variables across JavaScript, native code, and build tools.
react-native-ultimate-config is a configuration management library specifically designed for React Native applications. It centralizes environment variables, API keys, and feature flags, making them accessible across JavaScript, native code (Java/Objective-C), and native build configurations like Xcode build settings, Info.plist, Gradle, and AndroidManifest.xml. It solves the problem of managing platform-specific configurations separately, reducing redundancy and streamlining development workflows.
React Native developers and teams building cross-platform mobile applications who need to manage environment-specific settings, API keys, or feature flags consistently across iOS, Android, and JavaScript. It is particularly useful for projects using React Native for Web, monorepos (with yarn workspaces or lerna), or requiring type safety with TypeScript.
Developers choose react-native-ultimate-config because it unifies configuration management across all parts of a React Native app—JavaScript, native code, and build tools—eliminating the need to duplicate settings per platform. Its unique selling points include cross-platform access without requiring Xcode schemes or Android flavors, support for dotenv and YAML files with full typing, and integration with testing frameworks like Jest and Detox.
Config that works
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Centralizes configuration across JavaScript, native code, and build tools like Xcode settings and Gradle, eliminating duplicate settings as emphasized in the mission to reduce friction.
Provides full TypeScript typings when using YAML configs, ensuring type-safe access to variables, a feature highlighted in the documentation for enhanced reliability.
Abstracts native project nuances with a one-off setup, allowing easy access in Info.plist, AndroidManifest.xml, and more without manual scheme or flavor management.
Compatible with React Native for Web and works seamlessly in monorepos using yarn workspaces or lerna, making it versatile for modern development setups.
Every library update requires running the rnuc command to regenerate files, adding maintenance steps and risk of missing updates, as warned in the versioning section.
Specific versions are tied to gradle versions (e.g., >4 requires gradle 7), which can complicate upgrades or compatibility with existing Android projects.
The initial native setup and code generation might be excessive for apps with straightforward configurations that don't span multiple platforms or native code.