elasticsearch rest client

@Configuration
public class ESConfiguration {

    @Bean
    public RestClient restClient() {
        return RestClient.builder(new HttpHost("apm-server", 9200, "http"))
                .setRequestConfigCallback(requestConfigBuilder -> requestConfigBuilder.setConnectTimeout(60000)
                        .setSocketTimeout(60000))
                .setHttpClientConfigCallback(httpClientBuilder -> httpClientBuilder.setDefaultIOReactorConfig(
                        IOReactorConfig.custom().setIoThreadCount(4).build()))
                .setMaxRetryTimeoutMillis(60000)
                .build();
    }

}