How can I get only '_source' field in elasticsearch client search function?

Question

I'm doing elasticsearch in node js. Through 'client.search', I can get data from elasticsearch, but I just want to get '_source' field. How can I do this??

Through javascript 'map' function, I can get only _source data. However, I want to know what is the body option in 'client.search' to get only source data.

This is my code that is used map function.

    index: 'bank',
    body:{
      query:{
        "bool":{
          "must":{"match":{"state":"AL"}}
        }
      }
    }
  }, function getMore(err,data){
    if(err)
    {
      console.log(err);
      return;
    }
    var source = data.hits.hits.map(function(obj){
      return obj._source;
    });
    console.log(source);
    res.end(source);
  });

Val · Accepted Answer · 2019-04-12 06:24:57Z

1

With client.search() there's no other way.

However, when retrieving a single document, you can use client.getSource() instead of client.get().

answered Apr 12, 2019 at 6:24

Val

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1 Comment

dino Over a year ago

Hi Val! Thanks for answering!! I see..!!

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