Question

does anybody know how to do facet search with Nest?
My index is https://gist.github.com/3606852
would like to search for some keyword in ‘NumberEvent’ and dispaly the result if the keyword exist.Please help me !!!

Answer 1

This is using the assumption that the MyPoco class exists and maps to your elasticsearch document. If it doesn’t you can use dynamic but you’l have to swap the lambda based field selectors with strings.

var result = client.Search<MyPoco>(s=>s
    .From(0)
    .Size(10)
    .Filter(ff=>ff.
        .Term(f=>f.Categories.Types.Events.First().NumberEvent.event, "keyword")
    )
    .FacetTerm(q=>q.OnField(f=>f.Categories.Types.Facets.First().Person.First().entity))
);

result.Documents now holds your documents

result.Facet<TermFacet>(f => f.Categories.Types.Facets.First().Person.First().entity); now holds your facets

Your document seems a bit strange though in the sense that it already has Facets with counts in them.