3rd.sh

curl -X POST "http://localhost:9200/articles/_search?pretty=true" -d '
  {
    "query" : { "query_string" : {"query" : "T*"} },
    "filter" : { "type": { "value": "article" }} ,
    "facets" : {
      "tags" : { "terms" : {"field" : "tags"} }
    }
  }
'


Returns:


{
  "took" : 4,
  "timed_out" : false,
  "_shards" : {
    "total" : 5,
    "successful" : 5,
    "failed" : 0
  },
  "hits" : {
    "total" : 2,
    "max_score" : 1.0,
    "hits" : [ {
      "_index" : "articles",
      "_type" : "article",
      "_id" : "2",
      "_score" : 1.0, "_source" : 
{
"title" : "Two"
}
    }, {
      "_index" : "articles",
      "_type" : "article",
      "_id" : "3",
      "_score" : 1.0, "_source" : 
{"title" : "Three"}
    } ]
  },
  "facets" : {
    "tags" : {
      "_type" : "terms",
      "missing" : 2,
      "total" : 0,
      "other" : 0,
      "terms" : [ ]
    }
  }