Assign types to a specific index using NEST2

Question

I would like to be able to set up some sort of mapping using the NEST2 client so that different types are automatically put in a defined index. Is this possible?

I've tried to map types like this:

client.Map<A>(m => m.Index("index1"));
client.Map<B>(m => m.Index("index2"));

And then index them like this:

client.Index(new SomethingThatGoesToTheDefaultIndex());
client.Index(new A());//Should end up in index1
client.Index(new B());//Should end up in index2

But everything ends up in the default index and not the set index. Do I need to give the required index every time I store data, or is it possible to set up a defined index per type?

Rob · Accepted Answer · 2016-03-02 15:31:11Z

2

You can pass index name with help of second parameter in .Index(..) method.

Just like this:

client.Index(new A(), descriptor => descriptor.Index("index1"));
client.Index(new B(), descriptor => descriptor.Index("index2"));

UPDATE

MapDefaultTypeIndices will help you to specify default index name for type.

var settings = new ConnectionSettings() 
    .MapDefaultTypeIndices(dictionary =>
    {
        dictionary.Add(typeof (A), "index1");
        dictionary.Add(typeof (B), "index2");
    });

var client = new ElasticClient(settings);

Hope it helps.

edited Mar 2, 2016 at 15:31

answered Mar 2, 2016 at 15:18

Rob

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3 Comments

Russell Troywest Over a year ago

Thanks Rob. I did see I could do this but I was hoping I could centralise the code when I created the client. I don't really want to be littering index names all over the place - especially since they are different depending on the client using the software. If I have to set the index when storing then I guess that's what I'll do, but it'll be a nightmare to change if I decide to change the index pattern.

Rob Over a year ago

You can set up default index name with ConnectionSettings.DefaultIndex(indexName).

Russell Troywest Over a year ago

The DefaultIndex will default for ALL types though. I need different types to go to different indexes.

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