OpenSearch로 데이터 분석해보기

jsonCopy
PUT /index_name
{
  "settings": {
    "number_of_shards": 1,
    "number_of_replicas": 1
  },
  "mappings": {
    "properties": {
      "field1": {
        "type": "text"
      }
    }
  }
}

javaCopy
public String createIndex(String indexName) throws IOException {
    GetIndexRequest request = new GetIndexRequest(indexName);
    boolean exists = client.indices().exists(request, RequestOptions.DEFAULT);
    if (!exists) {
        CreateIndexRequest createIndexRequest = new CreateIndexRequest(indexName);
        CreateIndexResponse createIndexResponse = client.indices().create(createIndexRequest, RequestOptions.DEFAULT);
        System.out.println("Index Created: " + createIndexResponse.index());
        return createIndexResponse.index();
    } else {
        System.out.println("Index already exists.");
        return "Index already exists.";
    }
}

jsonCopy
POST /hajongon/_doc
{
  "type": "test1",
  "@timestamp": "2023-07-10T12:34:56Z",
  "age": 32
}