# ElasticSearch Result using NEST **URL:** \ **Category:** Elasticsearch\ **Created:** [April 20, 2016, 2:37am UTC](https://discuss.elastic.co/t/elasticsearch-result-using-nest/47847 "2016-04-20T02:37:08Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![ASN](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/asn/32/10535_2.png) [@ASN](https://discuss.elastic.co/u/ASN)\ **Post date:** [April 20, 2016, 2:37am UTC](https://discuss.elastic.co/t/elasticsearch-result-using-nest/47847/1 "2016-04-20T02:37:08Z")
Hi all. I'm using NEST for ES in .net ``` string wordInfoQuery = @"{ ""query"": { ""match_phrase"":{ ""Answer"":{ ""query"": ""brown dog"", ""slop"": "3" } } } }"; try { if (client != null) { var callResult = client.LowLevel.Search(wordInfoQuery); Response.Write(client.LowLevel); Response.Write("query=" + wordInfoQuery); Response.Write(callResult.Body); } } ``` In the above code, when i run the code in debug mode, I'm getting a successful post message with query result(for eg. max\_Score = 0.28) where as if i run the code in browser mode, it is still making a call to ES , but the result is empty(max\_score =""). I dont know why is this happening. someone please help in solving this. thanks in advance ---
**Author:** ![forloop](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/forloop/32/9021_2.png) [@forloop](https://discuss.elastic.co/u/forloop)\ **Post date:** [April 21, 2016, 7:07am UTC](https://discuss.elastic.co/t/elasticsearch-result-using-nest/47847/2 "2016-04-21T07:07:21Z")
A few observations 1. You use `"Answer"` as the field name for the `match_phrase` query in your json but NEST by default will camel case all CLR property names when mapping, indexing, searching, etc. This should be `"answer"` or [change the default field name inference on Connection Settings](https://www.elastic.co/guide/en/elasticsearch/client/net-api/2.x/field-inference.html#camel-casing) 2. When there are no results for a `match_phrase` query, `max_score` will be `null` so you will need to handle this case. In your example, a `slop` of 3 produces no hits for the query so `max_score` is `null`. If you change `slop` to 5, you get the document back and a value for `max_score`. 3. I'd recommend using the [Fluent API](https://www.elastic.co/guide/en/elasticsearch/client/net-api/2.x/match-phrase-usage.html#_fluent_dsl_example_32) or the [Object Initializer Syntax](https://www.elastic.co/guide/en/elasticsearch/client/net-api/2.x/match-phrase-usage.html#_object_initializer_syntax_example_32) in NEST unless you have good reason not to (and if you do have a reason, we'd love to know!). There are **[usage examples of all of the Query DSL for NEST 2.x](https://www.elastic.co/guide/en/elasticsearch/client/net-api/2.x/query-dsl.html)** that should hopefully help 🙂 An example ```auto void Main() { var pool = new SingleNodeConnectionPool(new Uri("http://localhost:9200")); var defaultIndex = "zzz"; var connectionSettings = new ConnectionSettings(pool) .DefaultIndex(defaultIndex) .MapDefaultTypeNames(m => m.Add(typeof(Class1), "omg")) .PrettyJson() .DisableDirectStreaming() .OnRequestCompleted(response => { // log out the request if (response.RequestBodyInBytes != null) { Console.WriteLine( $"{response.HttpMethod} {response.Uri} \n" + $"{Encoding.UTF8.GetString(response.RequestBodyInBytes)}"); } else { Console.WriteLine($"{response.HttpMethod} {response.Uri}"); } // log out the response if (response.ResponseBodyInBytes != null) { Console.WriteLine($"Status: {response.HttpStatusCode}\n" + $"{Encoding.UTF8.GetString(response.ResponseBodyInBytes)}\n" + $"{new string('-', 30)}\n"); } else { Console.WriteLine($"Status: {response.HttpStatusCode}\n" + $"{new string('-', 30)}\n"); } }); var client = new ElasticClient(connectionSettings); if (client.IndexExists(defaultIndex).Exists) { client.DeleteIndex(defaultIndex); } client.CreateIndex(defaultIndex); client.Index(new Class1 { Id = 1, Answer = "The quick brown fox jumps over the lazy dog" }, i => i.Refresh()); var searchResponse = client.Search(s => s .Query(q => q .MatchPhrase(mp => mp .Field(f => f.Answer) .Query("brown dog") .Slop(5) ) ) ); Console.WriteLine(searchResponse.MaxScore); } public class Class1 { public int Id { get; set; } public string Answer { get; set; } } ``` Writes out the following to the console ```auto HEAD http://localhost:9200/zzz?pretty=true Status: 200 ------------------------------ DELETE http://localhost:9200/zzz?pretty=true Status: 200 { "acknowledged" : true } ------------------------------ PUT http://localhost:9200/zzz?pretty=true {} Status: 200 { "acknowledged" : true } ------------------------------ PUT http://localhost:9200/zzz/omg/1?pretty=true&refresh=true { "id": 1, "answer": "The quick brown fox jumps over the lazy dog" } Status: 201 { "_index" : "zzz", "_type" : "omg", "_id" : "1", "_version" : 1, "_shards" : { "total" : 2, "successful" : 1, "failed" : 0 }, "created" : true } ------------------------------ POST http://localhost:9200/zzz/omg/_search?pretty=true { "query": { "match": { "answer": { "type": "phrase", "query": "brown dog", "slop": 5 } } } } Status: 200 { "took" : 1, "timed_out" : false, "_shards" : { "total" : 5, "successful" : 5, "failed" : 0 }, "hits" : { "total" : 1, "max_score" : 0.07829509, "hits" : [ { "_index" : "zzz", "_type" : "omg", "_id" : "1", "_score" : 0.07829509, "_source" : { "id" : 1, "answer" : "The quick brown fox jumps over the lazy dog" } } ] } } ------------------------------ 0.07829509 ``` ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 5, 2017, 10:55pm UTC](https://discuss.elastic.co/t/elasticsearch-result-using-nest/47847/4 "2017-07-05T22:55:41Z")