[[ml-get-datafeed]]
==== Get Data Feeds

The get data feeds API allows you to retrieve configuration information for
data feeds.

===== Request

`GET _xpack/ml/datafeeds/` +

`GET _xpack/ml/datafeeds/<feed_id>`
////
===== Description

OUTDATED?: The get job API can also be applied to all jobs by using `_all` as the job name.
////
===== Path Parameters

`feed_id`::
  (+string+) Identifier for the data feed.
  If you do not specify this optional parameter, the API returns information
  about all data feeds that you have authority to view.

===== Results

The API returns information about the data feed resource.
For more information, see <<ml-datafeed-resource,data feed resources>>.

////
===== Query Parameters

None

===== Responses

200
(EmptyResponse) The cluster has been successfully deleted
404
(BasicFailedReply) The cluster specified by {cluster_id} cannot be found (code: clusters.cluster_not_found)
412
(BasicFailedReply) The Elasticsearch cluster has not been shutdown yet (code: clusters.cluster_plan_state_error)
////
===== Examples

.Example results for a single data feed
----
{
  "count": 1,
  "datafeeds": [
    {
      "datafeed_id": "datafeed-it-ops",
      "job_id": "it-ops",
      "query_delay": "60s",
      "frequency": "150s",
      "indexes": [
        "it_ops_metrics"
      ],
      "types": [
        "network",
        "kpi",
        "sql"
      ],
      "query": {
        "match_all": {
          "boost": 1
        }
      },
      "aggregations": {
        "@timestamp": {
          "histogram": {
            "field": "@timestamp",
            "interval": 30000,
            "offset": 0,
            "order": {
              "_key": "asc"
            },
            "keyed": false,
            "min_doc_count": 0
          },
          "aggregations": {
            "events_per_min": {
              "sum": {
                "field": "events_per_min"
              }
            }
          }
        }
      },
      "scroll_size": 1000
    }
  ]
}
----
