Jest vs. Elasticsearch Java Rest API Client for Elasticsearch 6.00

rhlarora84 · January 25, 2018, 5:24pm

Hi,
We are looking forward to use Elasticsearch (6.0) for our search use cases. We have come across the following Java based elastic search clients for api operations -

Jest
Elastic Search Rest API

We plan to use AWS managed Elasticsearch cluster for infrastructure.

Is there any recommendation from the team on the java client library given the maturity of the API ?
Would there be anything missing in Elasticsearch Rest API but available in Jest?

Thanks

dadoonet · January 25, 2018, 5:40pm

The most mature is the TransportClient IMO.
BUT if you think about the future, this client will be retired in the future and you should consider instead the REST Client. Not as mature but lot of needed APIs for most use cases are here.
And you have access to the Low Level client in case something you need is missing.

For example, I wrote some code here for my own needs that extend the High Level Client:

github.com

dadoonet/fscrawler/blob/master/elasticsearch-client/src/main/java/fr/pilato/elasticsearch/crawler/fs/client/ElasticsearchClient.java#L76-L106


/**
 * Create an index
 * @param index index name
 * @param ignoreErrors don't fail if the index already exists
 * @param indexSettings index settings if any
 * @throws IOException In case of error
 */
public void createIndex(String index, boolean ignoreErrors, String indexSettings) throws IOException {
    logger.debug("create index [{}]", index);
    logger.trace("index settings: [{}]", indexSettings);
    try {
        StringEntity entity = null;
        if (!isNullOrEmpty(indexSettings)) {
            entity = new StringEntity(indexSettings, ContentType.APPLICATION_JSON);
        }
        Response response = getLowLevelClient().performRequest("PUT", "/" + index, Collections.emptyMap(), entity);
        logger.trace("create index response: {}", LowLevelClientJsonUtil.asMap(response));
    } catch (ResponseException e) {
        if (e.getResponse().getStatusLine().getStatusCode() == 400 &&
                (e.getMessage().contains("index_already_exists_exception") || // ES 5.x

This file has been truncated. show original

My 2 cents.

Ivan · January 25, 2018, 5:54pm

The JEST client has far fewer dependencies than any of the official
Elasticsearch clients. If jar hell is an issue, than JEST is the way to go.
I use it in production, and it works flawlessly.

system · February 22, 2018, 5:54pm

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.