Create index with multi field mapping syntax with NEST 2.x

Question

I just can\'t seem to get the syntax correct for multi field mapping in NEST 2.0--if that\'s the correct terminology. Every example I\'ve found for mapping seems to be <= the

Answer 1

As far as I can see, you don't have any complex types that you are trying map. So you can easily use NEST attributes to map your objects.

Check this out:

[Nest.ElasticsearchType]
public class MyType
{
    // Index this & allow for retrieval.
    [Nest.Number(Store=true)]
    int Id { get; set; }

    // Index this & allow for retrieval.
    // **Also**, in my searching & sorting, I need to sort on this **entire** field, not just individual tokens.
    [Nest.String(Store = true, Index=Nest.FieldIndexOption.Analyzed, TermVector=Nest.TermVectorOption.WithPositionsOffsets)]
    string CompanyName { get; set; }

    // Don't index this for searching, but do store for display.
    [Nest.Date(Store=true, Index=Nest.NonStringIndexOption.No)]
    DateTime CreatedDate { get; set; }

    // Index this for searching BUT NOT for retrieval/displaying.
    [Nest.String(Store=false, Index=Nest.FieldIndexOption.Analyzed)]
    string CompanyDescription { get; set; }

    [Nest.Nested(Store=true, IncludeInAll=true)]
    // Nest this.
    List Locations { get; set; }
}

[Nest.ElasticsearchType]
public class MyChildType
{
    // Index this & allow for retrieval.
    [Nest.String(Store=true, Index = Nest.FieldIndexOption.Analyzed)]
    string LocationName { get; set; }

    // etc. other properties.
}

After this declaration, to create this mapping in elasticsearch you need to make a call similar to:

var mappingResponse = elasticClient.Map(m => m.AutoMap());

With AutoMap() call NEST will read your attributes from your POCO and create a mapping request accordingly.

Also see "Attribute Based Mapping" section from here.

Cheers!