Check if index exist in elasticsearch 8.2

Hi,

How do I check if index exist in JAVA API 8.2.

In v.7.x I used:

GetIndexRequest request = new GetIndexRequest("yourindexname");
restHighLevelclient.indices().exists(request, RequestOptions.DEFAULT);

Hi!!
Try:

var result = client.indices().exists(ExistsRequest.of(e -> e.index("name_index")));

RestHighLevelClient is deprecated in 8.2 so I cant use client.indices().exists.
RestHighLevelClient is changed to RestClient.

My code is Java API Client

version 8.2?

Yes.

what is the client object in:

var result = client.indices().exists(ExistsRequest.of(e -> e.index("name_index")));

I just find out that the new way is:

Response response = client.performRequest(new Request("HEAD", "/" + index));
	return response.getStatusLine().getStatusCode() == 200;```

You are using low-level client.

My code:

RestClient restClient = RestClient.builder(new HttpHost("localhost", 9200)).build();
ElasticsearchTransport transport = new RestClientTransport(restClient, new JacksonJsonpMapper());
ElasticsearchClient client = new ElasticsearchClient(transport);
BooleanResponse result = client.indices().exists(ExistsRequest.of(e -> e.index("xpto")));
System.out.println("Exists indices: " + result.value());
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