--
:api: update-datafeed
:request: UpdateDatafeedRequest
:response: PutDatafeedResponse
--
[role="xpack"]
[id="{upid}-{api}"]
=== Update datafeed API

Updates a {ml} datafeed in the cluster. The API accepts a +{request}+ object
as a request and returns a +{response}+.

[id="{upid}-{api}-request"]
==== Update datafeed request

A +{request}+ requires the following argument:

["source","java",subs="attributes,callouts,macros"]
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include-tagged::{doc-tests-file}[{api}-request]
--------------------------------------------------
<1> The updated configuration of the {ml} datafeed

[id="{upid}-{api}-config"]
==== Updated datafeed arguments

A `DatafeedUpdate` requires an existing non-null `datafeedId` and
allows updating various settings.

["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests-file}[{api}-config]
--------------------------------------------------
<1> Mandatory, non-null `datafeedId` referencing an existing {ml} datafeed.
<2> Optional, set the datafeed aggregations for data gathering.
<3> Optional, the indices that contain the data to retrieve and feed into the
{anomaly-job}.
<4> Optional, specifies how data searches are split into time chunks.
<5> Optional, the interval at which scheduled queries are made while the
datafeed runs in real time.
<6> Optional, a query to filter the search results by. Defaults to the
`match_all` query.
<7> Optional, the time interval behind real time that data is queried.
<8> Optional, allows the use of script fields.
<9> Optional, the `size` parameter used in the searches.

include::../execution.asciidoc[]

[id="{upid}-{api}-response"]
==== Response

The returned +{response}+ returns the full representation of
the updated {ml} datafeed if it has been successfully updated.

["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests-file}[{api}-response]
--------------------------------------------------
<1> The updated datafeed.