Search by Date range and Keyword in ElasticSearch Nest client?-CodePudding

I am trying to implement a search that will filter by both the given keyword, as well as a given date range using the Nest client.

var searchResponse = client.Search<mdl.Event>(s => s
                .From(0)
                .Query(q => q
                    .Match(m => m
                        .Query(search.Text))));

This returns as expected, but I haven't been able to figure out a way to filter by date with it. Is there a simple addition like .Date(d => d) or another way I can make this happen?

CodePudding user response：

You can do that with the DateRange function (standing for the range DSL query). You need to combine both constraints using bool queries

var searchResponse = client.Search<mdl.Event>(s => s
            .From(0)
            .Query(q => 
                 q.Match(m => m.Query(search.Text)) && 
                 q.DateRange(r => r
                      .Field(f => f.StartedOn)
                      .GreaterThanOrEquals(new DateTime(2017, 01, 01))
                      .LessThan(new DateTime(2018, 01, 01))
                 )
            )