[FSSDK-12242] support UNSTABLE_conditionEvaluators option

Author: raju-opti

lib/client_factory.ts

@@ -1,5 +1,5 @@
 /**
- * Copyright 2025, Optimizely
+ * Copyright 2025-2026, Optimizely
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,7 +22,7 @@ import { extractOdpManager } from "./odp/odp_manager_factory";
 import { extractVuidManager } from "./vuid/vuid_manager_factory";
 import { RequestHandler } from "./utils/http_request_handler/http";
 import { CLIENT_VERSION, DEFAULT_CMAB_BACKOFF_MS, DEFAULT_CMAB_CACHE_SIZE, DEFAULT_CMAB_CACHE_TIMEOUT_MS, DEFAULT_CMAB_RETRIES, JAVASCRIPT_CLIENT_ENGINE } from "./utils/enums";
-import Optimizely from "./optimizely";
+import Optimizely, { OptimizelyOptions } from "./optimizely";
 import { DefaultCmabClient } from "./core/decision_service/cmab/cmab_client";
 import { CmabCacheValue, DefaultCmabService } from "./core/decision_service/cmab/cmab_service";
 import { InMemoryLruCache } from "./utils/cache/in_memory_lru_cache";
@@ -76,7 +76,7 @@ export const getOptimizelyInstance = (config: OptimizelyFactoryConfig): Optimize
     logger: logger?.child()
   });
 
-  const optimizelyOptions = {
+  const optimizelyOptions: OptimizelyOptions = {
     cmabService,
     clientEngine: clientEngine || JAVASCRIPT_CLIENT_ENGINE,
     clientVersion: clientVersion || CLIENT_VERSION,
@@ -91,6 +91,9 @@ export const getOptimizelyInstance = (config: OptimizelyFactoryConfig): Optimize
     eventProcessor,
     odpManager,
     vuidManager,
+    // UNSTABLE_conditionEvaluators is not exposed in the public types, but we want to pass it through
+    // for internal use cases.
+    UNSTABLE_conditionEvaluators: (config as any).UNSTABLE_conditionEvaluators,
   };
 
   return new Optimizely(optimizelyOptions);

lib/core/decision_service/index.ts

@@ -1,5 +1,5 @@
 /**
- * Copyright 2017-2022, 2024-2025, Optimizely
+ * Copyright 2017-2022, 2024-2026, Optimizely
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -158,6 +158,8 @@ export type DecideOptionsMap = Partial<Record<OptimizelyDecideOption, boolean>>;
 
 export const CMAB_DUMMY_ENTITY_ID= '$'
 
+export const LOGGER_NAME = 'DecisionService';
+
 /**
  * Optimizely's decision service that determines which variation of an experiment the user will be allocated to.
  *
@@ -183,6 +185,7 @@ export class DecisionService {
 
   constructor(options: DecisionServiceOptions) {
     this.logger = options.logger;
+    this.logger?.setName(LOGGER_NAME);
     this.audienceEvaluator = createAudienceEvaluator(options.UNSTABLE_conditionEvaluators, this.logger);
     this.forcedVariationMap = {};
     this.userProfileService = options.userProfileService;

lib/optimizely/index.ts

@@ -1,5 +1,5 @@
 /**
- * Copyright 2020-2025, Optimizely
+ * Copyright 2020-2026, Optimizely
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -242,7 +242,7 @@ export default class Optimizely extends BaseService implements Client {
       userProfileService: userProfileService,
       userProfileServiceAsync: config.userProfileServiceAsync || undefined,
       cmabService: config.cmabService,
-      logger: this.logger,
+      logger: this.logger?.child(),
       UNSTABLE_conditionEvaluators: config.UNSTABLE_conditionEvaluators,
     });