Do I need to create a Type for Nest Search?

Question

I see examples like:

var result = this._client.Search(s => s
.Index("my-index")
.Type("my-type")
 .Query(q=> ....)
 .Filter(f=> ....)         
);

But when I use this I get:

The type arguments for method 'Nest.ElasticClient.Search<T>(System.Func<Nest.SearchDescriptor<T>,Nest.SearchDescriptor<T>>)' cannot be inferred from the usage. Try specifying the type arguments explicitly.   

I have lots of different types and I don't want to create classes for all of them. Can I use NEST and it's search without types like Search<MyType>?

Thanks

Answer 1

I have successfully used Search<dynamic> to avoid needing to be dependent upon a specific type. Then when I get my results back I can examine them and cast/convert into a specific POCO if desired.

I use something like the following:

var result = client.Search<dynamic>(s => s
     .Index("myIndex")
     .AllTypes()
     .Query(q => ...)
     .Filter(f => ...)
);

foreach (var hit in result.Hits.Hits)
{
     //check hit.Type and then map hit.Source into the appropriate POCO.
     // I use AutoMapper for the mapping, but you can do whatever suits you.
     if (string.Compare(hit.Type, "myType", StringCompare.OrdinalIgnoreCase) == 0)
     {
           var myType = AutoMapper.Mapper<MyType>(hit.Source);
     }
}