NEST elasticsearch DateRange query - elasticsearch

Question

I am trying to get results from elasticsearch on a predefined range of dates using NEST api but i dont manage. This example code i am trying to retrieve a week of data but it is ignoring my date Filter and returning older data than my initial date.
Thanks in advance for the help!
var node = new Uri("http://localhost:9200");
var settings = new ConnectionSettings(node);
var client = new ElasticClient(settings);
settings.DefaultIndex("wholelog-2017.04*");
client.CreateIndex("wholelog-2017.04*",
create => create.Mappings(
mappings => mappings.Map<LogLine>(type =>
type.AutoMap()
)
));
DateTime InitDate = DateTime.Now.AddDays(-7);
var filterClauses = new List<QueryContainer>();
filterClauses.Add(new DateRangeQuery
{
Field = new Field("logTime"),
LessThanOrEqualTo = DateTime.Now,
GreaterThanOrEqualTo = InitDate
});
var searchRequest = new SearchRequest<LogLine>()
{
Size = 10000,
From = 0,
Scroll = "1m",
Query = new BoolQuery
{
Filter = filterClauses
}
};
var searchResult = client.Search<LogLine>(searchRequest);
[ElasticsearchType(Name="logLine")]
public class LogLine
{
public string Message {get;set;}
public DateTime logTime {get;set;}
public string type {get;set;}
public string logServer {get;set;}
}
logstash config file
output {
elasticsearch{
hosts => "localhost"
#user => ####
#password => ####
index => "wholelog-%{+YYYY.MM.dd}"
}
}

Answer 1

I assume that you didn't explicitly put your mapping and just started adding documents to your index. Try to create a new index like this
client.CreateIndex(indexName,
create => create.Mappings(
mappings => mappings.Map<LogLine>(
type => type.AutoMap()
)
)
);
And use DateTime for your field. DateMath is intended for building search queries
[ElasticsearchType(Name = "logLine")]
public class LogLine
{
public string Message { get; set; }
public DateTime logTime { get; set; }
public string type { get; set; }
public string logServer { get; set; }
}
After explicitly putting your mapping try to add docs and search against new index.