Javascript-SDK - 2.0.0-beta1
March 29th, 2018
This major release of the Optimizely SDK introduces APIs for Feature Management. It also introduces some breaking changes listed below.
### New Features * Introduces the `isFeatureEnabled` API to determine whether to show a feature to a user or not. ``` var enabled = optimizelyClient.isFeatureEnabled('my_feature_key', 'user_1', userAttributes); ```
* You can also get all the enabled features for the user by calling the following method which returns a list of strings representing the feature keys: ``` var enabledFeatures = optimizelyClient.getEnabledFeatures('user_1', userAttributes); ```
* Introduces Feature Variables to configure or parameterize your feature. There are four variable types: `Integer`, `String`, `Double`, `Boolean`. ``` var stringVariable = optimizelyClient.getFeatureVariableString('my_feature_key', 'string_variable_key', 'user_1'); var integerVariable = optimizelyClient.getFeatureVariableInteger('my_feature_key', 'integer_variable_key', 'user_1'); var doubleVariable = optimizelyClient.getFeatureVariableDouble('my_feature_key', 'double_variable_key', 'user_1'); var booleanVariable = optimizelyClient.getFeatureVariableBoolean('my_feature_key', 'boolean_variable_key', 'user_1'); ```
### Breaking changes * The `track` API with revenue value as a stand-alone parameter has been removed. The revenue value should be passed in as an entry of the event tags map. The key for the revenue tag is `revenue` and will be treated by Optimizely as the key for analyzing revenue data in results. ``` var eventTags = { 'revenue': 1200 };
optimizelyClient.track('event_key', 'user_id', userAttributes, eventTags); ``` * The package name has changed from `optimizely-client-sdk` to `optimizely-sdk` as we have consolidated both Node and JavaScript SDKs into one.