LaunchDarkly
Learn how to use Sentry with LaunchDarkly in your Java app.
The LaunchDarkly integration tracks feature flag evaluations produced by the LaunchDarkly SDK. These evaluations are held in memory and are sent to Sentry on error and transaction events. At the moment, we only support boolean flag evaluations.
To install use:
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implementation 'io.sentry:sentry-launchdarkly-server:8.27.0'
For other dependency managers, check out the central Maven repository.
Before using this integration, you need to install and instrument the LaunchDarkly Java SDK in your app.
Add SentryLaunchDarklyServerHook to your LaunchDarkly setup:
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import com.launchdarkly.sdk.LDContext;
import com.launchdarkly.sdk.server.Components;
import com.launchdarkly.sdk.server.LDClient;
import com.launchdarkly.sdk.server.LDConfig;
import io.sentry.launchdarkly.server.SentryLaunchDarklyServerHook;
LDConfig config = new LDConfig.Builder()
.hooks(Components.hooks()
.setHooks(Arrays.asList(new SentryLaunchDarklyServerHook())))
.build();
LDClient launchDarklyClient = new LDClient("sdk-key", config);
The integration is tested by evaluating a feature flag using your LaunchDarkly SDK before capturing an exception.
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import io.sentry.Sentry;
boolean flagValue = launchDarklyClient.boolVariation("test-flag", context, false);
Sentry.captureException(new Exception("Something went wrong!"));
Visit the Sentry website and confirm that your error event has recorded the feature flag "test-flag" and its value "false".
Next Steps
- Track feature flag evaluations in other parts of your codebase. If needed, you can set up evaluation tracking for more than one SDK. Read the docs to learn more.
- Set up your change tracking webhook. In order to take full advantage of the feature flag capabilities Sentry offers there is an additional setup step needed. Your feature flag provider needs to notify Sentry when a feature flag definition has changed. A Sentry webhook URL can be registered with your provider. Learn how.
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Our documentation is open source and available on GitHub. Your contributions are welcome, whether fixing a typo (drat!) or suggesting an update ("yeah, this would be better").
Our documentation is open source and available on GitHub. Your contributions are welcome, whether fixing a typo (drat!) or suggesting an update ("yeah, this would be better").