LaunchDarkly Client-Side SDK for React Native

[!IMPORTANT] As mentioned in the repository changelog, the launchdarkly-react-native-client-sdk project has been renamed to @launchdarkly/react-native-client-sdk. All future releases will be made from the new repository. Please consider upgrading and filing potential requests in that repository's issue tracker.

v9.x readme

LaunchDarkly overview

LaunchDarkly is a feature management platform that serves trillions of feature flags daily to help teams build better software, faster. Get started using LaunchDarkly today!

Supported versions

React Native SDK version 10 is now released.

The LaunchDarkly React Native SDK version 10 is written in pure JavaScript and is compatible with Expo. It supports hot reloading. For customers using React Native 0.72.x - 0.73.x, use the latest 10.x release. If you cannot upgrade to the 10.x yet, use RN 8.0.x and 9.0.x respectively.

For React Native 0.71.x, use the latest 8.0.x release.

For React Native 0.69.x - 0.70.x support, use the latest 7.1.x release.

Getting started

Refer to the SDK documentation for instructions on getting started with using the SDK.

Learn more

Read our documentation for in-depth instructions on configuring and using LaunchDarkly. You can also head straight to the complete reference guide for this SDK.

Testing

We run integration tests for all our SDKs using a centralized test harness. This approach gives us the ability to test for consistency across SDKs, as well as test networking behavior in a long-running application. These tests cover each method in the SDK, and verify that event sending, flag evaluation, stream reconnection, and other aspects of the SDK all behave correctly.

Contributing

We encourage pull requests and other contributions from the community. Check out our contributing guidelines for instructions on how to contribute to this SDK.

About LaunchDarkly

• LaunchDarkly is a continuous delivery platform that provides feature flags as a service and allows developers to iterate quickly and safely. We allow you to easily flag your features and manage them from the LaunchDarkly dashboard. With LaunchDarkly, you can:
  • Roll out a new feature to a subset of your users (like a group of users who opt-in to a beta tester group), gathering feedback and bug reports from real-world use cases.
  • Gradually roll out a feature to an increasing percentage of users, and track the effect that the feature has on key metrics (for instance, how likely is a user to complete a purchase if they have feature A versus feature B?).
  • Turn off a feature that you realize is causing performance problems in production, without needing to re-deploy, or even restart the application with a changed configuration file.
  • Grant access to certain features based on user attributes, like payment plan (eg: users on the ‘gold’ plan get access to more features than users in the ‘silver’ plan). Disable parts of your application to facilitate maintenance, without taking everything offline.
• LaunchDarkly provides feature flag SDKs for a wide variety of languages and technologies. Read our documentation for a complete list.
• Explore LaunchDarkly
  • launchdarkly.com for more information
  • docs.launchdarkly.com for our documentation and SDK reference guides
  • apidocs.launchdarkly.com for our API documentation
  • blog.launchdarkly.com for the latest product updates

Developing this SDK

• Run yarn doctor in both the root and ManualTestApp directories and make sure everything is green

  • If watchman fails, you can try installing it manually brew reinstall watchman

• Make sure you have modd installed so native code changes are hot reloaded

• For ios run yarn dev-ios

• For android run yarn dev-android