[role="xpack"]
[[update-license]]
=== Update License API

This API enables you to update your license.

[float]
==== Request

`PUT _xpack/license`

[float]
==== Description

You can update your license at runtime without shutting down your nodes.
License updates take effect immediately.  If the license you are installing does
not support all of the features that were available with your previous license,
however, you are notified in the response.  You must then re-submit the API
request with the `acknowledge` parameter set to `true`.

For more information about the different types of licenses, see
https://www.elastic.co/subscriptions.

[float]
==== Query Parameters

`acknowledge`::
  (boolean) Specifies whether you acknowledge the license changes. The default
  value is `false`.

[float]
==== Request Body

`licenses`::
  (array) A sequence of one or more JSON documents containing the license
  information.


[float]
==== Authorization

If {security} is enabled, you need `manage` cluster privileges to install the
license.

If {security} is enabled and you are installing a gold or platinum license, you
must enable TLS on the transport networking layer before you install the license.
See <<configuring-tls>>.

[float]
==== Examples

The following example updates to a basic license:

[source,js]
------------------------------------------------------------
POST _xpack/license
{
  "licenses": [
    {
      "uid":"893361dc-9749-4997-93cb-802e3d7fa4xx",
      "type":"basic",
      "issue_date_in_millis":1411948800000,
      "expiry_date_in_millis":1914278399999,
      "max_nodes":1,
      "issued_to":"issuedTo",
      "issuer":"issuer",
      "signature":"xx"
    }
    ]
}
------------------------------------------------------------
// CONSOLE
// TEST[skip:license testing issues]

NOTE: These values are invalid; you must substitute the appropriate content
from your license file.

You can alternatively use a `curl` command, for example:

[source,js]
[source,shell]
------------------------------------------------------------
curl -XPUT -u <user> 'http://<host>:<port>/_xpack/license' -H "Content-Type: application/json" -d @license.json
------------------------------------------------------------
// NOTCONSOLE

On Windows machine, use the following command:

[source,shell]
------------------------------------------------------------
gc .\license.json |  Invoke-WebRequest -uri http://<host>:<port>/_xpack/license -Credential elastic -Method Put -ContentType "application/json"
------------------------------------------------------------

In these examples,

* `<user>` is a user ID with the appropriate authority.
* `<host>` is the hostname of the {es} node (`localhost` if executing
  locally)
* `<port>` is the http port (defaults to `9200`)
* `license.json` is the license JSON file

NOTE:  If your {es} node has SSL enabled on the HTTP interface, you must
  start your URL with `https://`

If you previously had a license with more features than the basic license, you
receive the following response:

[source,js]
------------------------------------------------------------
  {
  "acknowledged": false,
  "license_status": "valid",
  "acknowledge": {
    "message": """This license update requires acknowledgement. To acknowledge the license, please read the following messages and update the license again, this time with the "acknowledge=true" parameter:""",
    "watcher": [
      "Watcher will be disabled"
    ],
    "logstash": [
      "Logstash will no longer poll for centrally-managed pipelines"
    ],
    "security": [
      "The following X-Pack security functionality will be disabled: ..." ]
    }
}
------------------------------------------------------------

To complete the update, you must re-submit the API request and set the
`acknowledge` parameter to `true`. For example:

[source,js]
------------------------------------------------------------
POST _xpack/license?acknowledge=true
{
  "licenses": [
    {
      "uid":"893361dc-9749-4997-93cb-802e3d7fa4xx",
      "type":"basic",
      "issue_date_in_millis":1411948800000,
      "expiry_date_in_millis":1914278399999,
      "max_nodes":1,
      "issued_to":"issuedTo",
      "issuer":"issuer",
      "signature":"xx"
    }
    ]
}
------------------------------------------------------------
// CONSOLE
// TEST[skip:license testing issues]

Alternatively:

[source,sh]
------------------------------------------------------------
curl -XPUT -u elastic 'http://<host>:<port>/_xpack/license?acknowledge=true' -H "Content-Type: application/json" -d @license.json
------------------------------------------------------------
// NOTCONSOLE

For more information about the features that are disabled when you downgrade
your license, see {xpack-ref}/license-expiration.html[License Expiration].