Update Android API usage from older versions

1 min

This section provides code examples for how You should leveraging the new Decision and Event Tracking APIs. All existing Full Stack (Legacy) methods and implementation are still supported. See Optimizely Feature Experimentation - application & migration documentation for the latest updates.

You should adopting the new Decide, Decide All, and Track Event methods as a more flexible and easier-to-use replacement where you currently use isFeatureEnabled, getFeatureVariable, getAllFeatures, or Track calls within your implementation.

The following are examples of how to migrate the Full Stack (Legacy) methods to Feature Experimentation methods:

// Prereq for new methods: create a user
val attributes: MutableMap<String, Any?> = HashMap()
attributes["is_logged_in"] = true
val user = optimizelyClient.createUserContext("user123", attributes)

// Is Feature Enabled

// old method
var enabled = optimizelyClient.isFeatureEnabled("flag_1", "user123", attributes)
// new method
val decision = user!!.decide("flag_1")
enabled = decision.enabled

// Activate & Get Variation

// old method
val variation = optimizelyClient.activate("experiment_1", "user123", attributes)
// new method
val variationKey = decision.variationKey

// Get All Feature Variables

// old method
var json = optimizelyClient.getAllFeatureVariables("flag_1", "user123", attributes)
// new method
json = decision.variables

// Get Enabled Features

// old method
val enabledFlags = optimizelyClient.getEnabledFeatures("user123", attributes)
// new method
val options = Arrays.asList(OptimizelyDecideOption.ENABLED_FLAGS_ONLY)
val decisions = user.decideAll(options)
val enabledFlagsSet: Set<String> = decisions.keys

// Track

// old method
val tags: MutableMap<String, Any?> = HashMap()
tags["purchase_count"] = 2
optimizelyClient.track("my_purchase_event_key", "user123", attributes, tags)
// new method
user.trackEvent("my_purchase_event_key", tags)

// Prereq for new methods: create a user
Map<String, Object> attributes = new HashMap<>();
attributes.put("is_logged_in", true);
OptimizelyUserContext user = optimizelyClient.createUserContext("user123", attributes);
        
// Is Feature Enabled
        
// old method
boolean enabled = optimizelyClient.isFeatureEnabled("flag_1", "user123", attributes);
// new method
OptimizelyDecision decision = user.decide("flag_1");
enabled = decision.getEnabled();
        
// Activate & Get Variation
        
// old method
Variation variation = optimizelyClient.activate("experiment_1", "user123", attributes);
// new method
String variationKey = decision.getVariationKey();
        
// Get All Feature Variables

// old method
OptimizelyJSON json = optimizelyClient.getAllFeatureVariables("flag_1", "user123", attributes);
// new method
json = decision.getVariables();
        
// Get Enabled Features

// old method
List<String> enabledFlags = optimizelyClient.getEnabledFeatures("user123", attributes);
// new method
List<OptimizelyDecideOption> options = Arrays.asList(OptimizelyDecideOption.ENABLED_FLAGS_ONLY);
Map<String, OptimizelyDecision> decisions = user.decideAll(options);
Set<String> enabledFlagsSet = decisions.keySet();
        
// Track

// old method
Map<String, Object> tags = new HashMap<>();
tags.put("purchase_count", 2);
optimizelyClient.track("my_purchase_event_key", "user123", attributes, tags);
// new method
user.trackEvent("my_purchase_event_key", tags);