elasticsearch/docs/reference/transform/apis/update-transform.asciidoc

[role="xpack"]
[[update-transform]]
= Update {transform} API

[subs="attributes"]
++++
<titleabbrev>Update {transform}</titleabbrev>
++++

Updates certain properties of a {transform}.

[[update-transform-request]]
== {api-request-title}

`POST _transform/<transform_id>/_update`

[[update-transform-prereqs]]
== {api-prereq-title}

Requires the following privileges:

* cluster: `manage_transform` (the `transform_admin` built-in role grants this
  privilege)
* source indices: `read`, `view_index_metadata`
* destination index: `read`, `index`. If a `retention_policy` is configured, `delete` index privilege is
also required.


[[update-transform-desc]]
== {api-description-title}

This API updates an existing {transform}. The list of properties that you can
update is a subset of the list that you can define when you create a {transform}.

When the {transform} is updated, a series of validations occur to ensure its
success. You can use the `defer_validation` parameter to skip these checks.

All updated properties except description do not take effect until after the
{transform} starts the next checkpoint. This is so there is data consistency in
each checkpoint.

[IMPORTANT]
====

* Your {transform} remembers which roles the user who updated it had at the time
of update and runs with those privileges. If you provide
<<http-clients-secondary-authorization,secondary authorization headers>>, those
credentials are used instead.
* You must use {kib} or this API to update a {transform}. Directly updating any
{transform} internal, system, or hidden indices is not supported and may cause
permanent failure.

====

[[update-transform-path-parms]]
== {api-path-parms-title}

`<transform_id>`::
(Required, string)
include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=transform-id]

[[update-transform-query-parms]]
== {api-query-parms-title}

`defer_validation`::
(Optional, Boolean) When `true`, deferrable validations are not run. This
behavior may be desired if the source index does not exist until after the
{transform} is updated.

`timeout`::
(Optional, time)
Period to wait for a response. If no response is received before the timeout
expires, the request fails and returns an error. Defaults to `30s`.

[role="child_attributes"]
[[update-transform-request-body]]
== {api-request-body-title}

`description`::
  (Optional, string) Free text description of the {transform}.

//Begin dest
`dest`::
(Optional, object)
include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=dest]
+
.Properties of `dest`
[%collapsible%open]
====

`index`:::
(Required, string)
include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=dest-index]

`pipeline`:::
(Optional, string)
include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=dest-pipeline]
====
//End dest

`frequency`::
(Optional, <<time-units, time units>>)
include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=frequency]

//Begin _meta
`_meta`::
(Optional, object)
include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=transform-metadata]
//End _meta

//Begin retention policy
`retention_policy`::
(Optional, object)
include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=transform-retention]
+
.Properties of `retention_policy`
[%collapsible%open]
====
`time`:::
(Required, object)
include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=transform-retention-time]
+
.Properties of `time`
[%collapsible%open]
=====
`field`:::
(Required, string)
include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=transform-retention-time-field]

`max_age`:::
(Required, <<time-units, time units>>)
include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=transform-retention-time-max-age]
=====
====
//End retention policy

//Begin settings
`settings`::
(Optional, object)
include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=transform-settings]
+
.Properties of `settings`
[%collapsible%open]
====
`dates_as_epoch_millis`:::
(Optional, boolean)
include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=transform-settings-dates-as-epoch-milli]
`docs_per_second`:::
(Optional, float)
include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=transform-settings-docs-per-second]
`align_checkpoints`:::
(Optional, boolean)
include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=transform-settings-align-checkpoints]
`deduce_mappings`:::
(Optional, boolean)
include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=transform-settings-deduce-mappings]
`max_page_search_size`:::
(Optional, integer)
include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=transform-settings-max-page-search-size]
`num_failure_retries`:::
(Optional, integer)
include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=transform-settings-num-failure-retries]
====
//End settings

//Begin source
`source`::
(Optional, object)
include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=source-transforms]
+
.Properties of `source`
[%collapsible%open]
====

`index`:::
(Required, string or array)
include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=source-index-transforms]

`query`:::
(Optional, object)
include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=source-query-transforms]
====
//End source

//Begin sync
`sync`::
(Optional, object)
include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=sync]
+
--
NOTE: You can update these properties only if it is a continuous {transform}. You
cannot change a batch {transform} into a continuous {transform} or vice versa.
Instead, clone the {transform} in {kib} and add or remove the `sync` property.

--
+
.Properties of `sync`
[%collapsible%open]
====

//Begin sync.time
`time`:::
(Required, object)
include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=sync-time]
+
.Properties of `time`
[%collapsible%open]
=====

`delay`::::
(Optional, <<time-units, time units>>)
include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=sync-time-delay]

`field`::::
(Required, string)
include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=sync-time-field]
+
--
TIP: In general, it’s a good idea to use a field that contains the
<<access-ingest-metadata,ingest timestamp>>. If you use a different field,
you might need to set the `delay` such that it accounts for data transmission
delays.

--
=====
//End sync.time
====
//End sync

[[update-transform-example]]
== {api-examples-title}

[source,console]
--------------------------------------------------
POST _transform/simple-kibana-ecomm-pivot/_update
{
  "source": {
    "index": "kibana_sample_data_ecommerce",
    "query": {
      "term": {
        "geoip.continent_name": {
          "value": "Asia"
        }
      }
    }
  },
  "description": "Maximum priced ecommerce data by customer_id in Asia",
  "dest": {
    "index": "kibana_sample_data_ecommerce_transform_v2",
    "pipeline": "add_timestamp_pipeline"
  },
  "frequency": "15m",
  "sync": {
    "time": {
      "field": "order_date",
      "delay": "120s"
    }
  }
}
--------------------------------------------------
// TEST[setup:simple_kibana_continuous_pivot]

When the {transform} is updated, you receive the updated configuration:

[source,console-result]
----
{
  "id" : "simple-kibana-ecomm-pivot",
  "authorization" : {
    "roles" : [
      "superuser"
    ]
  },
  "version" : "8.4.0",
  "create_time" : 1656113450613,
  "source" : {
    "index" : [
      "kibana_sample_data_ecommerce"
    ],
    "query" : {
      "term" : {
        "geoip.continent_name" : {
          "value" : "Asia"
        }
      }
    }
  },
  "dest" : {
    "index" : "kibana_sample_data_ecommerce_transform_v2",
    "pipeline" : "add_timestamp_pipeline"
  },
  "frequency" : "15m",
  "sync" : {
    "time" : {
      "field" : "order_date",
      "delay" : "120s"
    }
  },
  "pivot" : {
    "group_by" : {
      "customer_id" : {
        "terms" : {
          "field" : "customer_id"
        }
      }
    },
    "aggregations" : {
      "max_price" : {
        "max" : {
          "field" : "taxful_total_price"
        }
      }
    }
  },
  "description" : "Maximum priced ecommerce data by customer_id in Asia",
  "settings" : { }
}
----
// TESTRESPONSE[s/"version" : "8.4.0"/"version" : $body.version/]
// TESTRESPONSE[s/"create_time" : 1656113450613/"create_time" : $body.create_time/]
// TESTRESPONSE[s/"authorization" : \{[^}]*\},//]