event type aggregation query

es_event_types_agg

curl -XPOST -d \
'{
  "aggs": {
    "types": {
        "terms": {
          "field": "_type"
        }
    },
    "events_by_date": {
      "aggs": {
        "event_types": {
          "terms": {
            "field": "_type"
          }
        }
      },
      "date_histogram": {
        "min_doc_count": 0,
        "interval": "1h",
        "field": "timestamp",
        "extended_bounds" : {
                    "min" : "2015-05-22T18:36:19.108284+00:00"
        }
      }
    }
  },
  "query": {
    "filtered": {
      "query": {
        "match_all": {}
      },
      "filter": {
        "bool": {
          "must": [
            {
              "range": {
                "timestamp": {
                  "gte": "2015-02-22T18:36:19.108284+00:00"
                }
              }
            }
          ]
        }
      }
    }
  }
}' \
-H 'Content-Type: application/json' \
http://127.0.0.1:9200/events_*/_search?search_type=count | python -m json.tool