Customize the Flutter SDK logger

📘

Coming soon

Customizing the log information for the Flutter SDK is in progress and will be released soon.

The logger captures details about your experiments, making it easier for you to debug them. You can customize where the log information is stored and choose the types of data you want to track.

To improve your experience setting up the SDK and configuring your production environment, pass in a logger for your Optimizely client. See the following code sample.

TODO

Log levels

The following table lists the log levels for the Flutter SDK.

• OptimizelySDK.Logger.LogLevel.ERROR – Logs events that prevent feature flags from working properly, such as an invalid data file during initialization or incorrect feature keys. These issues require user intervention to fix.
• OptimizelySDK.Logger.LogLevel.WARN – Logs events that do not prevent feature flags from working properly but may cause unexpected results, such as future API deprecation, improper logger or error handler settings, and nil values from getters.
• OptimizelySDK.Logger.LogLevel.INFO – Logs key events to illustrate the lifecycle of an API call, such as when a decision or tracking starts and succeeds.
• OptimizelySDK.Logger.LogLevel.DEBUG – Logs extra information related to errors that aid Optimizely in debugging, like when a feature flag is not running or a user is not included in a rollout.