# Using elastic client with latest version for various operations

**URL:** <https://discuss.elastic.co/t/using-elastic-client-with-latest-version-for-various-operations/349678>\
**Category:** Elasticsearch\
**Created:** [December 19, 2023, 7:23pm UTC](https://discuss.elastic.co/t/using-elastic-client-with-latest-version-for-various-operations/349678 "2023-12-19T19:23:58Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Tukaram](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tukaram/32/118944_2.png) [@Tukaram](https://discuss.elastic.co/u/Tukaram)\
**Post date:** [December 19, 2023, 7:23pm UTC](https://discuss.elastic.co/t/using-elastic-client-with-latest-version-for-various-operations/349678/1 "2023-12-19T19:23:58Z")

</div>

Hi,

I am trying to migrate my java client to 8.11 stack from 7.17. Earlier, I had to pass auth token as request options in all requests.  
Now, there are so many incompatible methods where I dont see option to pass request option. for example, below code to create index.

```
CreateIndexRequest createIndexRequest = CreateIndexRequest.of( b -> b.index(indexName.getIndexName())
    .withJson(file).settings(IndexSettings.of( s -> s.numberOfReplicas(String.valueOf(replicaCount))
        .shards(shardCount))));

```

I see way to set option at RestClient level, but that means for each request, I need to build a new restclient to take care of token expiry?  
Can you please point to proper migration guide(I doubt existing is covering all topics.)

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<div class="post-metadata">

**Author:** ![Tukaram](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tukaram/32/118944_2.png) [@Tukaram](https://discuss.elastic.co/u/Tukaram)\
**Post date:** [December 20, 2023, 9:10am UTC](https://discuss.elastic.co/t/using-elastic-client-with-latest-version-for-various-operations/349678/2 "2023-12-20T09:10:17Z")

</div>

I am getting below exception currently due to client versioning issue.

Caused by: java.util.concurrent.CancellationException: Request execution cancelled  
at org.apache.http.impl.nio.client.CloseableHttpAsyncClientBase.execute(CloseableHttpAsyncClientBase.java:114)  
at org.apache.http.impl.nio.client.InternalHttpAsyncClient.execute(InternalHttpAsyncClient.java:138)  
at org.elasticsearch.client.RestClient.performRequest(RestClient.java:296)

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [January 17, 2024, 9:10am UTC](https://discuss.elastic.co/t/using-elastic-client-with-latest-version-for-various-operations/349678/3 "2024-01-17T09:10:42Z")

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