//lcawley Verified example output 2017-04-11
[[ml-put-datafeed]]
==== Create Data Feeds

The create data feed API enables you to instantiate a data feed.

===== Request

`PUT _xpack/ml/datafeeds/<feed_id>`

===== Description

You must create a job before you create a data feed.  You can associate only one
data feed to each job.

===== Path Parameters

`feed_id` (required)::
  (+string+) A numerical character string that uniquely identifies the data feed.

===== Request Body

`aggregations`::
  (+object+) TBD.

`chunking_config`::
  (+object+) TBD.
  For example: {"mode": "manual", "time_span": "30000000ms"}

`frequency`::
   TBD: For example: "150s"

`indexes` (required)::
  (+array+) An array of index names. For example: ["it_ops_metrics"]

`job_id` (required)::
 (+string+) A numerical character string that uniquely identifies the job.

`query`::
  (+object+) The query that retrieves the data.
  By default, this property has the following value: `{"match_all": {"boost": 1}}`.

`query_delay`::
  TBD. For example: "60s"

`scroll_size`::
  TBD. For example, 1000

`types` (required)::
  TBD. For example: ["network","sql","kpi"]

For more information about these properties,
see <<ml-datafeed-resource, Data Feed Resources>>.

////
===== Responses

TBD
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

The following example creates the `datafeed-it-ops-kpi` data feed:

[source,js]
--------------------------------------------------
PUT _xpack/ml/datafeeds/datafeed-it-ops-kpi
{
  "job_id": "it-ops-kpi",
  "indexes": ["it_ops_metrics"],
  "types": ["kpi","network","sql"],
  "query": {
    "match_all": {
          "boost": 1
    }
  }
}
--------------------------------------------------
// CONSOLE
// TEST[skip:todo]

When the data feed is created, you receive the following results:
----
{
  "datafeed_id": "datafeed-it-ops-kpi",
  "job_id": "it-ops-kpi",
  "query_delay": "1m",
  "indexes": [
    "it_ops_metrics"
  ],
  "types": [
    "kpi",
    "network",
    "sql"
  ],
  "query": {
    "match_all": {
      "boost": 1
    }
  },
  "scroll_size": 1000,
  "chunking_config": {
    "mode": "auto"
  }
}
----