New Elasticsearch Java Client: Getting Started, Usage, Examples & More

Elastic has recently released a new Java client for Elasticsearch, which is more lightweight than the previous High Level Rest Client while providing a more complete API coverage and an easier to use DSL-like experience.
This talk will walk you through a few examples with this new client and its query DSL. It will also give you an overview of how it is developed, being the first of a new generation of Elasticsearch client libraries based on code generation.
Speaker: Sylvain Wallez, Principal Software Engineer at Elastic.
Get the new Java Client at: github.com/elastic/elasticsea...
Questions? Ask us on discuss.elastic.co
Connect with us in our Slack workspace: ela.st/slack
#JavaClient #Elasticsearch #ElasticsearchJava #ElasticsearchTutorial

[@fredrikgustafson9829]

Thanks for a really nice overview of the new JavaClient. I just wish I had it some days ago :D. Looking forward to work more with the new client.

[@benaya6]

Thank you so much for that. It helped me a lot to finally understand how it works.
About the documentation requests- maybe even just publish an existing example repository, with minimal documentation could do the trick, until you have time for more documentation.
Thanks again 🙏🙏💪

[@rajeshraju8397]

Can you add a video on migrating your existing HLRC code to new Java Api code? The GetRequest using Hlrc are totally different in documentation.

[@_dinesh]

Thank you for the great video. Is it possible to get the raw HTTP request from Java Client? For logging purposes.

[@xdaniel3936]

Many thanks Sylvain. I am trying to switch from high level rest client to this new client (Java). I tried a simple matchAll query as follows and I got 2 questions need your help:
SearchResponse response = esClient.search(s -> s
.index("publications")
.query(q -> q
.matchAll(t -> t.queryName(""))
),
Publication.class
);
My first question is, Is the code " .matchAll(t -> t.queryName(""))" correct? (even it's working fine)
Secondly, the query by default only returns the first 10 documents. How can I return the whole result list?
It would be greatly appreciated if you could help me with the above questions.
Thanks again

[@saveriomirkoviola4365]

Hi, I have a question: how may I perform a delete or delete by query with new Java client? I haven't found anything in documentation...

[@TheMoviemaker98]

Im sorry, but I just have a question. How do I construct a SearchResponse search when trying to search for terms? Where I search everything in a list? No official documentation regarding that

[@Soundbreakr1]

I had the same question but because they dont want you constructing generics they moved to a different approach using QueryField which takes in FieldValues. You can map an object to return these types. an example would be terms(t-> t.field(fn).terms(fvm-> fvm.value(myval string))

[@chinmaydaf3864]

How can we delete a document using java api client? Any documentation will be helpful

[@cugoman]

not enough examples or info on this yet unfortunatly. Might take a few years to be the real deal

[@GiovanniSosa]

If you want to know how the new client is generated go to 15:34

[@sureshchaudhari4465]

BoolQuery how to create

[@Soundbreakr1]

There is no boolquery type just builder which you can get with queryBuilders.bool

[@ramazanaktas748]

Everybody is an engineer in here and there. Yet, no one can afford a decent microphone.