New SDK_UPDATE metadata type

AI-Session-Id: 32df18f1-ed0a-4979-bd0d-eb46df9d5c91
AI-Tool: claude-code
AI-Model: unknown

Author: EmilianoSanchez

.eslintrc

@@ -1,4 +1,5 @@
 {
+  "root": true,
   "extends": [
     "eslint:recommended"
   ],

src/readiness/constants.ts

@@ -14,3 +14,4 @@ export const SDK_UPDATE = 'state::update';
 // SdkUpdateMetadata types:
 export const FLAGS_UPDATE =  'FLAGS_UPDATE';
 export const SEGMENTS_UPDATE = 'SEGMENTS_UPDATE';
+export const CONFIGS_UPDATE = 'CONFIGS_UPDATE';

src/sync/polling/updaters/definitionChangesUpdater.ts

@@ -3,7 +3,7 @@ import { IDefinitionChangesFetcher } from '../fetchers/types';
 import { IRBSegment, IDefinition, IDefinitionChangesResponse, ISplitFiltersValidation, MaybeThenable } from '../../../dtos/types';
 import { ISplitsEventEmitter } from '../../../readiness/types';
 import { timeout } from '../../../utils/promise/timeout';
-import { SDK_SPLITS_ARRIVED, FLAGS_UPDATE, SEGMENTS_UPDATE } from '../../../readiness/constants';
+import { SDK_SPLITS_ARRIVED, FLAGS_UPDATE, SEGMENTS_UPDATE, CONFIGS_UPDATE } from '../../../readiness/constants';
 import { ILogger } from '../../../logger/types';
 import { SYNC_FETCH, SYNC_UPDATE, SYNC_FETCH_FAILS, SYNC_FETCH_RETRY } from '../../../logger/constants';
 import { startsWith } from '../../../utils/lang';
@@ -158,7 +158,7 @@ export function definitionChangesUpdaterFactory(
       return Promise.resolve(
         instantUpdate ?
           instantUpdate.type === SPLIT_UPDATE ?
-            // IFFU edge case: a change to a flag that adds an IN_RULE_BASED_SEGMENT matcher that is not present yet
+            // IFFU edge case: a change to definition that adds an IN_RULE_BASED_SEGMENT matcher that is not present yet
             Promise.resolve(rbSegments.contains(parseSegments(instantUpdate.payload, IN_RULE_BASED_SEGMENT))).then((contains) => {
               return contains ?
                 { ff: { d: [instantUpdate.payload as IDefinition], t: instantUpdate.changeNumber } } :
@@ -170,11 +170,11 @@ export function definitionChangesUpdaterFactory(
         .then((definitionChanges: IDefinitionChangesResponse) => {
           const usedSegments = new Set<string>();
 
-          let updatedFlags: string[] = [];
+          let updatedDefinitions: string[] = [];
           let ffUpdate: MaybeThenable<boolean> = false;
           if (definitionChanges.ff) {
             const { added, removed, names } = computeMutation(definitionChanges.ff.d, usedSegments, splitFiltersValidation);
-            updatedFlags = names;
+            updatedDefinitions = names;
             log.debug(SYNC_UPDATE, [definitionChangesFetcher.type, added.length, removed.length]);
             ffUpdate = splits.update(added, removed, definitionChanges.ff.t);
           }
@@ -202,8 +202,8 @@ export function definitionChangesUpdaterFactory(
                   // emit SDK events
                   if (emitSplitsArrivedEvent) {
                     const metadata: SdkUpdateMetadata = {
-                      type: updatedFlags.length > 0 ? FLAGS_UPDATE : SEGMENTS_UPDATE,
-                      names: updatedFlags.length > 0 ? updatedFlags : []
+                      type: updatedDefinitions.length > 0 ? definitionChangesFetcher.type === 'configs' ? CONFIGS_UPDATE : FLAGS_UPDATE : SEGMENTS_UPDATE,
+                      names: updatedDefinitions.length > 0 ? updatedDefinitions : []
                     };
                     splitsEventEmitter.emit(SDK_SPLITS_ARRIVED, metadata);
                   }