javascript - Getting subset of json from ElasticSearch -

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i want have subset of json response elasticsearch server. new elasticsearch , javascript. please have look. json file example file here elasticsearch doc. sample:

{   "took" : 1,   "timed_out" : false,   "_shards" : {     "total" : 5,     "successful" : 5,     "failed" : 0   },   "hits" : {     "total" : 1000,     "max_score" : 1.0,     "hits" : [ {       "_index" : "bank",       "_type" : "account",       "_id" : "4",       "_score" : 1.0,       "_source":{"account_number":4,"balance":27658,"firstname":"rodriquez","lastname":"flores","age":31,"gender":"f","address":"986 wyckoff avenue","employer":"tourmania","email":"rodriquezflores@tourmania.com","city":"eastvale","state":"hi"}     }, {       "_index" : "bank",       "_type" : "account",       "_id" : "9",       "_score" : 1.0,       "_source":{"account_number":9,"balance":24776,"firstname":"opal","lastname":"meadows","age":39,"gender":"m","address":"963 neptune avenue","employer":"cedward","email":"opalmeadows@cedward.com","city":"olney","state":"oh"}     } ................................ ]   } }

how extract array of account_number, balance , lastname example [{"account_number":9,"balance":24776,"lastname":"meadows"},{"account_number":4,"balance":27658,"lastname":"flores"}, ......... ].

here code used:

var deferred = $q.defer();                     $http.get("http://localhost:9200/bank/_search?q=*").success(function(data){                      var country=data.hits.hists.map( function (count) {                 return {                  account_number:  count._source.account_number,                  balance:  count._source.balance,                  lastname: count._source.lastname                                       };               });                deferred.resolve(country);           });            return deferred.promise;

i took inspiration similar codes one rest call. seems data got undefined. there configuration es side?

you can instruct es return fields using source filtering:

$http.get("http://localhost:9200/bank/_search?_source=account_number,balance,lastname&q=*").success(function(data){

that way don't have filter out fields yourself.

then have typo on next line: hists should read hits

var country=data.hits.hits.map( function (count) {

please try out.


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