adding placeholder applyChanges to PersistentDataStoreWrapper

packages/shared/sdk-server/src/options/Configuration.ts

@@ -59,8 +59,6 @@ const validations: Record<string, TypeValidator> = {
   hooks: TypeValidators.createTypeArray('Hook[]', {}),
 };
 
-
-
 /**
  * @internal
  */

packages/shared/sdk-server/src/store/PersistentDataStoreWrapper.ts

@@ -258,7 +258,19 @@ export default class PersistentDataStoreWrapper implements LDFeatureStore {
     _selector: String | undefined,
     _callback: () => void,
   ): void {
-    // TODO: implement
+    // TODO: SDK-1029 - Transactional persistent store - update this to not iterate over items and instead send data to underlying PersistentDataStore
+    // no need for queue at the moment as init and upsert handle that, but as part of SDK-1029, queue may be needed
+    if (_basis) {
+      this.init(_data, _callback);
+    } else {
+      Object.entries(_data).forEach(([namespace, items]) => {
+        Object.keys(items || {}).forEach((key) => {
+          const item = items[key];
+          this.upsert({ namespace }, { key, ...item }, () => {});
+        });
+      });
+      _callback();
+    }
   }
 
   close(): void {