Automatic id generation and mapping _id NEST

Question

I want the id to be automatically generated when I index a document into elastic search. This works fine when I don't specify an Id property in my poco.

What I would like to do is map the underlying _id field onto my poco class when getting and use auto generated id when indexing. It looks like I can either specify the id or not at all. Are their any nest api options that I am missing?

EDIT

Example gist https://gist.github.com/antonydenyer/9074159

Answer 1

As @Duc.Duong said in comments you can access Id using DocumentWithMeta. In current version of NEST DocumentsWithMetaData is replaced with Hits and also you should cast IHit<DataForGet>.Id from string to int.

this is my code:

public class DataForIndex
{
    public string Name { get; set; }
    // some other fields...
}

public class DataForGet : DataForIndex
{
    public int Id { get; set; }
}

var result = client.Search<DataForGet>(x => x.Index("index").MatchAll());
var list = results.Hits.Select(h =>
                                   {
                                       h.Source.Id = Convert.ToInt32(h.Id);
                                       return h.Source;
                                   }).ToList();