Hello, I want to use Java to do basic queries in a remote elastic cluster. It seems I successfully am connected to it, but querying does not return any result, whereas I have documents on my elastic cluster, on the requested index "data". final CredentialsProvider credentialsProvider = new BasicC…

First try with this: SearchResponse<Session> search = null; try { search = client.search(s -> s.index("data"), Session.class); } catch (IOException e) { e.printStackTrace(); } This should give some results. If not, please run this in Kibana Dev Console: GET /_cat/…

The GET /data-*/_search request seems to work correctly. But an exception is thrown when running this line : search = client.search(s -> s.index("data-*"), Session.class); Exception in thread "main" jakarta.json.stream.JsonParsingException: Jackson exception: Unrecognized token 'Client': was expe…

This probably comes from the second parameter Session.class. How should it be built? Should it inherit from a Java class in the es API? What should the constructor look like?

@Malo_Maisonneuve , please mention the solution if you have resolved this.

Minimal example of connection from Java and search for every document on index

Elastic Stack Elasticsearch

swallez (Sylvain Wallez) April 28, 2022, 9:55pm 6

The Java client calls Jackson to deserialize the documents returned by the search query as instances of Session.

You can test this independently from the Java client. Also, the original Jackson exception should follow the one you pasted (Caused by) and provide more information on where Jackson is failing.

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Minimal example of connection from Java and search for every document on index

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