> ## Documentation Index
> Fetch the complete documentation index at: https://algolia.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Batch indexing operations on multiple indices

> Adds, updates, or deletes records in multiple indices with a single API request.

**Required ACL:** `addObject`

* Actions are applied in the order they are specified.
* Actions are equivalent to the individual API requests of the same name.

This operation is subject to [indexing rate limits](https://support.algolia.com/hc/articles/4406975251089-Is-there-a-rate-limit-for-indexing-on-Algolia).

## Usage

<CodeGroup>
  ```cs C# theme={"system"}
  // Initialize the client
  var client = new SearchClient(new SearchConfig("ALGOLIA_APPLICATION_ID", "ALGOLIA_API_KEY"));

  // Call the API
  var response = await client.MultipleBatchAsync(
    new BatchParams
    {
      Requests = new List<MultipleBatchRequest>
      {
        new MultipleBatchRequest
        {
          Action = Enum.Parse<Action>("AddObject"),
          Body = new Dictionary<string, string> { { "key", "value" } },
          IndexName = "<YOUR_INDEX_NAME>",
        },
      },
    }
  );

  // print the response
  Console.WriteLine(response);
  ```

  ```dart Dart theme={"system"}
  // Initialize the client
  final client =
      SearchClient(appId: 'ALGOLIA_APPLICATION_ID', apiKey: 'ALGOLIA_API_KEY');

  // Call the API
  final response = await client.multipleBatch(
    batchParams: BatchParams(
      requests: [
        MultipleBatchRequest(
          action: Action.fromJson("addObject"),
          body: {
            'key': "value",
          },
          indexName: "<YOUR_INDEX_NAME>",
        ),
      ],
    ),
  );

  // print the response
  print(response);
  ```

  ```go Go theme={"system"}
  // Initialize the client
  client, err := search.NewClient("ALGOLIA_APPLICATION_ID", "ALGOLIA_API_KEY")
  if err != nil {
    // The client can fail to initialize if you pass an invalid parameter.
    panic(err)
  }

  // Call the API
  response, err := client.MultipleBatch(client.NewApiMultipleBatchRequest(

    search.NewEmptyBatchParams().SetRequests(
      []search.MultipleBatchRequest{
        *search.NewEmptyMultipleBatchRequest().SetAction(search.Action("addObject")).SetBody(map[string]any{"key": "value"}).SetIndexName("<YOUR_INDEX_NAME>"),
      }),
  ))
  if err != nil {
    // handle the eventual error
    panic(err)
  }


  // print the response
  print(response)
  ```

  ```java Java theme={"system"}
  // Initialize the client
  SearchClient client = new SearchClient("ALGOLIA_APPLICATION_ID", "ALGOLIA_API_KEY");

  // Call the API
  MultipleBatchResponse response = client.multipleBatch(
    new BatchParams().setRequests(
      Arrays.asList(
        new MultipleBatchRequest()
          .setAction(Action.ADD_OBJECT)
          .setBody(
            new HashMap() {
              {
                put("key", "value");
              }
            }
          )
          .setIndexName("<YOUR_INDEX_NAME>")
      )
    )
  );

  // print the response
  System.out.println(response);
  ```

  ```js JavaScript theme={"system"}
  // Initialize the client
  const client = algoliasearch('ALGOLIA_APPLICATION_ID', 'ALGOLIA_API_KEY');

  // Call the API
  const response = await client.multipleBatch({
    requests: [{ action: 'addObject', body: { key: 'value' }, indexName: 'theIndexName' }],
  });


  // print the response
  console.log(response);
  ```

  ```kotlin Kotlin theme={"system"}
  // Initialize the client
  val client = SearchClient(appId = "ALGOLIA_APPLICATION_ID", apiKey = "ALGOLIA_API_KEY")

  // Call the API
  var response =
    client.multipleBatch(
      batchParams =
        BatchParams(
          requests =
            listOf(
              MultipleBatchRequest(
                action = Action.entries.first { it.value == "addObject" },
                body = buildJsonObject { put("key", JsonPrimitive("value")) },
                indexName = "<YOUR_INDEX_NAME>",
              )
            )
        )
    )


  // print the response
  println(response)
  ```

  ```php PHP theme={"system"}
  // Initialize the client
  $client = SearchClient::create('ALGOLIA_APPLICATION_ID', 'ALGOLIA_API_KEY');

  // Call the API
  $response = $client->multipleBatch(
      ['requests' => [
          ['action' => 'addObject',
              'body' => ['key' => 'value',
              ],
              'indexName' => '<YOUR_INDEX_NAME>',
          ],
      ],
      ],
  );


  // print the response
  var_dump($response);
  ```

  ```python Python theme={"system"}
  # Initialize the client
  # In an asynchronous context, you can use SearchClient instead, which exposes the exact same methods.
  client = SearchClientSync("ALGOLIA_APPLICATION_ID", "ALGOLIA_API_KEY")

  # Call the API
  response = client.multiple_batch(
      batch_params={
          "requests": [
              {
                  "action": "addObject",
                  "body": {
                      "key": "value",
                  },
                  "indexName": "<YOUR_INDEX_NAME>",
              },
          ],
      },
  )


  # print the response
  print(response)
  ```

  ```ruby Ruby theme={"system"}
  # Initialize the client
  client = Algolia::SearchClient.create("ALGOLIA_APPLICATION_ID", "ALGOLIA_API_KEY")

  # Call the API
  response = client.multiple_batch(
    Algolia::Search::BatchParams.new(
      requests: [
        Algolia::Search::MultipleBatchRequest.new(
          action: "addObject",
          body: {key: "value"},
          index_name: "<YOUR_INDEX_NAME>"
        )
      ]
    )
  )


  # print the response
  puts(response)
  ```

  ```scala Scala theme={"system"}
  // Initialize the client
  val client = SearchClient(appId = "ALGOLIA_APPLICATION_ID", apiKey = "ALGOLIA_API_KEY")

  // Call the API
  val response = Await.result(
    client.multipleBatch(
      batchParams = BatchParams(
        requests = Seq(
          MultipleBatchRequest(
            action = Action.withName("addObject"),
            body = Some(JObject(List(JField("key", JString("value"))))),
            indexName = "<YOUR_INDEX_NAME>"
          )
        )
      )
    ),
    Duration(100, "sec")
  )

  // print the response
  println(response)
  ```

  ```swift Swift theme={"system"}
  // Initialize the client
  let client = try SearchClient(appID: "ALGOLIA_APPLICATION_ID", apiKey: "ALGOLIA_API_KEY")

  // Call the API
  let response = try await client.multipleBatch(batchParams: BatchParams(requests: [MultipleBatchRequest(
      action: SearchAction.addObject,
      body: ["key": "value"],
      indexName: "<YOUR_INDEX_NAME>"
  )]))

  // print the response
  print(response)
  ```
</CodeGroup>

<Card icon="folder-code" horizontal="true" title="See the full API reference" arrow="true" href="/doc/rest-api/search/multiple-batch">
  For more details about input parameters
  and response fields.
</Card>