Having trouble with a very basic search -- no results

Question

I have Elasticsearch up and running. Using Sense within Marvel, I am able to get a result, with this query:

GET _search
{
  "query": {
    "query_string": {
      "query": "massa"
    }
  }
}

My c# code, trying to recreate the above:

    var node = new Uri("http://localhost:9200");
    var settings = new ConnectionSettings(node).SetDefaultIndex("mediaitems");
    var client = new ElasticClient(settings);

    var results = client.Search<stuff>(s => s
        .Query(qs => qs.QueryString(q => q.Query("massa"))));

    var d = results.Documents;

But unfortunately I'm not getting any results, nothing in "results.Documents". Any suggestions? Maybe a way to see the generated json? What is the simplest way to just query everything in an index? Thanks!

Answer 1

Even though your search results are going to be mapped to the proper type because you are using .Search<stuff>, you still need to set the default type as part of your query.

    var node = new Uri("http://localhost:9200");
    var settings = new ConnectionSettings(node).SetDefaultIndex("mediaitems");
    var client = new ElasticClient(settings);

    var results = client.Search<stuff>(s => s
        .Type("stuff") //or .Type(typeof(stuff)) if you have decorated your stuff class correctly.
        .Query(qs => qs.QueryString(q => q.Query("massa"))));

    var d = results.Documents;

Additionally, your results response contains a ConnectionStatus property. You can interrogate this property to see the Request and Response to/from Elasticsearch to see if your query is being executed as you expect.

Update: You can also set a default type the index settings as well.

  var settings = new ConnectionSettings(node).SetDefualtIndex("mediaitems");
  settings.MapDefaultTypeIndices(d=>d.Add(typeof(stuff), "mediaitems");

Answer 2

You can also check nest raw client

var results = client.Raw.SearchPost("mediaitems", "stuff", new
      {
          query = new
          {
              query_string = new
              {
                      query = "massa"
              }
          }
      });

Answer 3

You can get the values of search request URL and JSON request body as under:

var requestURL = response.RequestInformation.RequestUrl;
var jsonBody = Encoding.UTF8.GetString(response.RequestInformation.Request);

You can find other useful properties in RequestInformation for debugging.