diff --git a/packages/client-sdk-nodejs/src/internal/vector-index-data-client.ts b/packages/client-sdk-nodejs/src/internal/vector-index-data-client.ts
index c66299e87..730bcfb8f 100644
--- a/packages/client-sdk-nodejs/src/internal/vector-index-data-client.ts
+++ b/packages/client-sdk-nodejs/src/internal/vector-index-data-client.ts
@@ -226,7 +226,7 @@ export class VectorIndexDataClient implements IVectorIndexDataClient {
 
   public async deleteItemBatch(
     indexName: string,
-    ids: Array<string>
+    filter: Array<string>
   ): Promise<VectorDeleteItemBatch.Response> {
     try {
       validateIndexName(indexName);
@@ -236,16 +236,16 @@ export class VectorIndexDataClient implements IVectorIndexDataClient {
         err => new VectorDeleteItemBatch.Error(err)
       );
     }
-    return await this.sendDeleteItemBatch(indexName, ids);
+    return await this.sendDeleteItemBatch(indexName, filter);
   }
 
   private async sendDeleteItemBatch(
     indexName: string,
-    ids: Array<string>
+    filter: Array<string>
   ): Promise<VectorDeleteItemBatch.Response> {
     const request = new vectorindex._DeleteItemBatchRequest({
       index_name: indexName,
-      filter: VectorIndexDataClient.idsToFilterExpression(ids),
+      filter: VectorIndexDataClient.idsToFilterExpression(filter),
     });
     return await new Promise((resolve, reject) => {
       this.client.DeleteItemBatch(
@@ -697,7 +697,7 @@ export class VectorIndexDataClient implements IVectorIndexDataClient {
 
   public async getItemBatch(
     indexName: string,
-    ids: string[]
+    filter: string[]
   ): Promise<VectorGetItemBatch.Response> {
     try {
       validateIndexName(indexName);
@@ -707,16 +707,16 @@ export class VectorIndexDataClient implements IVectorIndexDataClient {
         err => new VectorGetItemBatch.Error(err)
       );
     }
-    return await this.sendGetItemBatch(indexName, ids);
+    return await this.sendGetItemBatch(indexName, filter);
   }
 
   private async sendGetItemBatch(
     indexName: string,
-    ids: string[]
+    filter: string[]
   ): Promise<VectorGetItemBatch.Response> {
     const request = new vectorindex._GetItemBatchRequest({
       index_name: indexName,
-      filter: VectorIndexDataClient.idsToFilterExpression(ids),
+      filter: VectorIndexDataClient.idsToFilterExpression(filter),
       metadata_fields: VectorIndexDataClient.buildMetadataRequest({
         metadataFields: ALL_VECTOR_METADATA,
       }),
@@ -764,7 +764,7 @@ export class VectorIndexDataClient implements IVectorIndexDataClient {
 
   public async getItemMetadataBatch(
     indexName: string,
-    ids: string[]
+    filter: string[]
   ): Promise<VectorGetItemMetadataBatch.Response> {
     try {
       validateIndexName(indexName);
@@ -774,16 +774,16 @@ export class VectorIndexDataClient implements IVectorIndexDataClient {
         err => new VectorGetItemMetadataBatch.Error(err)
       );
     }
-    return await this.sendGetItemMetadataBatch(indexName, ids);
+    return await this.sendGetItemMetadataBatch(indexName, filter);
   }
 
   private async sendGetItemMetadataBatch(
     indexName: string,
-    ids: string[]
+    filter: string[]
   ): Promise<VectorGetItemMetadataBatch.Response> {
     const request = new vectorindex._GetItemMetadataBatchRequest({
       index_name: indexName,
-      filter: VectorIndexDataClient.idsToFilterExpression(ids),
+      filter: VectorIndexDataClient.idsToFilterExpression(filter),
       metadata_fields: VectorIndexDataClient.buildMetadataRequest({
         metadataFields: ALL_VECTOR_METADATA,
       }),
diff --git a/packages/client-sdk-web/src/internal/vector-index-data-client.ts b/packages/client-sdk-web/src/internal/vector-index-data-client.ts
index 3230a731b..937a45d36 100644
--- a/packages/client-sdk-web/src/internal/vector-index-data-client.ts
+++ b/packages/client-sdk-web/src/internal/vector-index-data-client.ts
@@ -211,7 +211,7 @@ export class VectorIndexDataClient implements IVectorIndexDataClient {
 
   public async deleteItemBatch(
     indexName: string,
-    ids: Array<string>
+    filter: Array<string>
   ): Promise<VectorDeleteItemBatch.Response> {
     try {
       validateIndexName(indexName);
@@ -221,16 +221,16 @@ export class VectorIndexDataClient implements IVectorIndexDataClient {
         err => new VectorDeleteItemBatch.Error(err)
       );
     }
-    return await this.sendDeleteItemBatch(indexName, ids);
+    return await this.sendDeleteItemBatch(indexName, filter);
   }
 
   private async sendDeleteItemBatch(
     indexName: string,
-    ids: Array<string>
+    filter: Array<string>
   ): Promise<VectorDeleteItemBatch.Response> {
     const request = new vectorindex._DeleteItemBatchRequest();
     request.setIndexName(indexName);
-    request.setFilter(VectorIndexDataClient.idsToFilterExpression(ids));
+    request.setFilter(VectorIndexDataClient.idsToFilterExpression(filter));
 
     return await new Promise((resolve, reject) => {
       this.client.deleteItemBatch(
@@ -689,7 +689,7 @@ export class VectorIndexDataClient implements IVectorIndexDataClient {
 
   public async getItemBatch(
     indexName: string,
-    ids: string[]
+    filter: string[]
   ): Promise<VectorGetItemBatch.Response> {
     try {
       validateIndexName(indexName);
@@ -699,16 +699,16 @@ export class VectorIndexDataClient implements IVectorIndexDataClient {
         err => new VectorGetItemBatch.Error(err)
       );
     }
-    return await this.sendGetItemBatch(indexName, ids);
+    return await this.sendGetItemBatch(indexName, filter);
   }
 
   private async sendGetItemBatch(
     indexName: string,
-    ids: string[]
+    filter: string[]
   ): Promise<VectorGetItemBatch.Response> {
     const request = new vectorindex._GetItemBatchRequest();
     request.setIndexName(indexName);
-    request.setFilter(VectorIndexDataClient.idsToFilterExpression(ids));
+    request.setFilter(VectorIndexDataClient.idsToFilterExpression(filter));
     request.setMetadataFields(
       VectorIndexDataClient.buildMetadataRequest({
         metadataFields: ALL_VECTOR_METADATA,
@@ -761,7 +761,7 @@ export class VectorIndexDataClient implements IVectorIndexDataClient {
 
   public async getItemMetadataBatch(
     indexName: string,
-    ids: string[]
+    filter: string[]
   ): Promise<VectorGetItemMetadataBatch.Response> {
     try {
       validateIndexName(indexName);
@@ -771,16 +771,16 @@ export class VectorIndexDataClient implements IVectorIndexDataClient {
         err => new VectorGetItemMetadataBatch.Error(err)
       );
     }
-    return await this.sendGetItemMetadataBatch(indexName, ids);
+    return await this.sendGetItemMetadataBatch(indexName, filter);
   }
 
   private async sendGetItemMetadataBatch(
     indexName: string,
-    ids: string[]
+    filter: string[]
   ): Promise<VectorGetItemMetadataBatch.Response> {
     const request = new vectorindex._GetItemMetadataBatchRequest();
     request.setIndexName(indexName);
-    request.setFilter(VectorIndexDataClient.idsToFilterExpression(ids));
+    request.setFilter(VectorIndexDataClient.idsToFilterExpression(filter));
     request.setMetadataFields(
       VectorIndexDataClient.buildMetadataRequest({
         metadataFields: ALL_VECTOR_METADATA,
diff --git a/packages/core/src/clients/IVectorIndexClient.ts b/packages/core/src/clients/IVectorIndexClient.ts
index 62fc6ecdc..29a266352 100644
--- a/packages/core/src/clients/IVectorIndexClient.ts
+++ b/packages/core/src/clients/IVectorIndexClient.ts
@@ -70,17 +70,17 @@ export interface IVectorIndexClient extends IVectorIndexControlClient {
 
   deleteItemBatch(
     indexName: string,
-    ids: Array<string>
+    filter: Array<string>
   ): Promise<VectorDeleteItemBatch.Response>;
 
   getItemBatch(
     indexName: string,
-    ids: Array<string>
+    filter: Array<string>
   ): Promise<VectorGetItemBatch.Response>;
 
   getItemMetadataBatch(
     indexName: string,
-    ids: Array<string>,
+    filter: Array<string>,
     metadataFields?: Array<string>
   ): Promise<VectorGetItemMetadataBatch.Response>;
 }
diff --git a/packages/core/src/internal/clients/vector/AbstractVectorIndexClient.ts b/packages/core/src/internal/clients/vector/AbstractVectorIndexClient.ts
index 4ff0dc411..cb15685ea 100644
--- a/packages/core/src/internal/clients/vector/AbstractVectorIndexClient.ts
+++ b/packages/core/src/internal/clients/vector/AbstractVectorIndexClient.ts
@@ -3,12 +3,12 @@ import {
   DeleteVectorIndex,
   ListVectorIndexes,
   VectorCountItems,
-  VectorUpsertItemBatch,
-  VectorSearch,
-  VectorSearchAndFetchVectors,
   VectorDeleteItemBatch,
   VectorGetItemBatch,
   VectorGetItemMetadataBatch,
+  VectorSearch,
+  VectorSearchAndFetchVectors,
+  VectorUpsertItemBatch,
 } from '../../..';
 import {
   IVectorIndexClient,
@@ -83,7 +83,7 @@ export abstract class AbstractVectorIndexClient
   }
 
   /**
-   * Deletes a vector index and all the vectors stored in it.
+   * Deletes a vector index and all the items stored in it.
    *
    * @param {string} indexName - The name of the vector index to delete.
    * @returns {Promise<DeleteVectorIndex.Response>} -
@@ -188,47 +188,47 @@ export abstract class AbstractVectorIndexClient
    * Deletes any and all items with the given IDs from the index.
    *
    * @param {string} indexName - Name of the index to delete the items from.
-   * @param {Array<string>} ids - The IDs of the items to be deleted from the index.
+   * @param {Array<string>} filter - The IDs of the items to be deleted from the index.
    * @returns {Promise<VectorDeleteItemBatch.Response>}
    * {@link VectorDeleteItemBatch.Success} on success.
    * {@link VectorDeleteItemBatch.Error} on error.
    */
   public async deleteItemBatch(
     indexName: string,
-    ids: Array<string>
+    filter: Array<string>
   ): Promise<VectorDeleteItemBatch.Response> {
-    return await this.dataClient.deleteItemBatch(indexName, ids);
+    return await this.dataClient.deleteItemBatch(indexName, filter);
   }
 
   /**
    * Gets a batch of items from a vector index by ID.
    *
    * @param indexName - Name of the index to get the items from.
-   * @param ids - The IDs of the items to be retrieved from the index.
+   * @param filter - The IDs of the items to be retrieved from the index.
    * @returns {Promise<VectorGetItemBatch.Response>}
    * {@link VectorGetItemBatch.Success} on success, with the found items.
    * {@link VectorGetItemBatch.Error} on error.
    */
   public async getItemBatch(
     indexName: string,
-    ids: string[]
+    filter: string[]
   ): Promise<VectorGetItemBatch.Response> {
-    return await this.dataClient.getItemBatch(indexName, ids);
+    return await this.dataClient.getItemBatch(indexName, filter);
   }
 
   /**
    * Gets metadata for a batch of items from a vector index by ID.
    *
    * @param indexName - Name of the index to get the items from.
-   * @param ids - The IDs of the items to be retrieved from the index.
+   * @param filter - The IDs of the items to be retrieved from the index.
    * @returns {Promise<VectorGetItemMetadataBatch.Response>}
    * {@link VectorGetItemMetadataBatch.Success} on success, with the found item metadata.
    * {@link VectorGetItemMetadataBatch.Error} on error.
    */
   public async getItemMetadataBatch(
     indexName: string,
-    ids: string[]
+    filter: string[]
   ): Promise<VectorGetItemMetadataBatch.Response> {
-    return await this.dataClient.getItemMetadataBatch(indexName, ids);
+    return await this.dataClient.getItemMetadataBatch(indexName, filter);
   }
 }
diff --git a/packages/core/src/internal/clients/vector/IVectorIndexDataClient.ts b/packages/core/src/internal/clients/vector/IVectorIndexDataClient.ts
index def048c8d..3c8d6c76d 100644
--- a/packages/core/src/internal/clients/vector/IVectorIndexDataClient.ts
+++ b/packages/core/src/internal/clients/vector/IVectorIndexDataClient.ts
@@ -1,41 +1,47 @@
 import {
   VectorCountItems,
-  VectorUpsertItemBatch,
   VectorDeleteItemBatch,
-  VectorSearch,
-  VectorSearchAndFetchVectors,
   VectorGetItemBatch,
   VectorGetItemMetadataBatch,
+  VectorSearch,
+  VectorSearchAndFetchVectors,
+  VectorUpsertItemBatch,
 } from '../../../messages/responses/vector';
 import {VectorIndexItem} from '../../../messages/vector-index';
 import {SearchOptions} from '../../../clients/IVectorIndexClient';
 
 export interface IVectorIndexDataClient {
   countItems(indexName: string): Promise<VectorCountItems.Response>;
+
   upsertItemBatch(
     indexName: string,
     items: Array<VectorIndexItem>
   ): Promise<VectorUpsertItemBatch.Response>;
+
   search(
     indexName: string,
     queryVector: Array<number>,
     options?: SearchOptions
   ): Promise<VectorSearch.Response>;
+
   searchAndFetchVectors(
     indexName: string,
     queryVector: Array<number>,
     options?: SearchOptions
   ): Promise<VectorSearchAndFetchVectors.Response>;
+
   deleteItemBatch(
     indexName: string,
-    ids: Array<string>
+    filter: Array<string>
   ): Promise<VectorDeleteItemBatch.Response>;
+
   getItemBatch(
     indexName: string,
-    ids: Array<string>
+    filter: Array<string>
   ): Promise<VectorGetItemBatch.Response>;
+
   getItemMetadataBatch(
     indexName: string,
-    ids: Array<string>
+    filter: Array<string>
   ): Promise<VectorGetItemMetadataBatch.Response>;
 }