CODEWITHSUNDEEP
c#asp.netelasticsearchnest
Liron Harel
Liron Harel

Reputation: 11247

Getting Empty Results using NEST for ElasticSearch

I ma making my first steps using ElasticSearch and NEST C# library for .NET. Here is my code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using Nest;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

        var setting = new ConnectionSettings(new Uri("http://localhost:9200/"));
        setting.SetDefaultIndex("Post");
        var client = new ElasticClient(setting);

        var post = new Post();
        post.id = 1;
        post.title = "the title";

        var t = client.Index(post);

        var results = client.Search<Post>(s => s.From(0)
            .Size(10)
            .Fields(f => f.id, f => f.title)
            .Query(q => q.Term(f => f.title, "title", Boost: 2.0))
            );

    }
}
public class Post
{
    public int id { get; set; }
    public string title { get; set; }
}

I was expecting to get the result from Post 1 because it has "title" keyword in it, but I get empty result set. What I am doing wrong?

Upvotes: 3

Views: 1853

Answers (2)

ramseykhalaf
ramseykhalaf

Reputation: 3400

The issue is the term query being used. This will only match the exact text indexed. The term query is useful for id type searching.

If you are doing free text searching try using the match query for a good general purpose free text search. You can read more about it here on the official docs and hopefully start discovering how to build interesting and powerful queries by becoming familiar with the docs.

Good luck

Upvotes: 3

Slyvain
Slyvain

Reputation: 1732

It takes a very little time for the indexation of your Post. If you insert a Thread.Sleep(1000); between your indexation and your query, you'll have results.

Upvotes: 0

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