Get raw query from NEST client

Question

Is it possible to get the raw search query from the NEST client?

var result = client.Search(s => s
             


        

Answer 1

In ElasticSearch 5.x, the RequestInformation.Request property does not exist in ISearchResponse, but similar to the answer provided here you can generate the raw query JSON using the Elastic Client Serializer and a SearchDescriptor. For example, for the given NEST search query:

var results = elasticClient.Search(s => s
    .Index("user")
    .Query(q => q                    
        .Exists(e => e
            .Field("location")
        )
    )            
);

You can get the raw query JSON as follows:

SearchDescriptor debugQuery = new SearchDescriptor()
    .Index("user")
    .Query(q => q                    
        .Exists(e => e
            .Field("location")
        )
    )
;

using (MemoryStream mStream = new MemoryStream())
{
    elasticClient.Serializer.Serialize(debugQuery, mStream);
    string rawQueryText = Encoding.ASCII.GetString(mStream.ToArray());
}