[role="xpack"]
[[security-api-invalidate-token]]
=== Invalidate token API

Invalidates one or more access tokens or refresh tokens.

==== Request

`DELETE /_security/oauth2/token`

==== Description

The access tokens returned by the <<security-api-get-token,get token API>> have a
finite period of time for which they are valid and after that time period, they 
can no longer be used. That time period is defined by the 
`xpack.security.authc.token.timeout` setting. For more information, see 
<<token-service-settings>>.

The refresh tokens returned by the <<security-api-get-token,get token API>> are
only valid for 24 hours. They can also be used exactly once.

If you want to invalidate one or more access or refresh tokens immediately, use this invalidate token API.


==== Request Body

The following parameters can be specified in the body of a DELETE request and
pertain to invalidating tokens:

`token` (optional)::
(string) An access token. This parameter cannot be used any of `refresh_token`, `realm_name` or
         `username` are used.

`refresh_token` (optional)::
(string) A refresh token. This parameter cannot be used any of `refresh_token`, `realm_name` or
                          `username` are used.

`realm_name` (optional)::
(string) The name of an authentication realm. This parameter cannot be used with either `refresh_token` or `token`.

`username` (optional)::
(string) The username of a user. This parameter cannot be used with either `refresh_token` or `token`

NOTE: While all parameters are optional, at least one of them is required. More specifically, either one of `token`
or `refresh_token` parameters is required. If none of these two are specified, then `realm_name` and/or `username`
need to be specified.

==== Examples

The following example invalidates the specified token immediately:

[source,js]
--------------------------------------------------
DELETE /_security/oauth2/token
{
  "token" : "dGhpcyBpcyBub3QgYSByZWFsIHRva2VuIGJ1dCBpdCBpcyBvbmx5IHRlc3QgZGF0YS4gZG8gbm90IHRyeSB0byByZWFkIHRva2VuIQ=="
}
--------------------------------------------------
// NOTCONSOLE

whereas the following example invalidates the specified refresh token immediately:

[source,js]
--------------------------------------------------
DELETE /_security/oauth2/token
{
  "refresh_token" : "movUJjPGRRC0PQ7+NW0eag"
}
--------------------------------------------------
// NOTCONSOLE

The following example invalidates all access tokens and refresh tokens for the `saml1` realm immediately:

[source,js]
--------------------------------------------------
DELETE /_xpack/security/oauth2/token
{
  "realm_name" : "saml1"
}
--------------------------------------------------
// NOTCONSOLE

The following example invalidates all access tokens and refresh tokens for the user `myuser` in all realms immediately:

[source,js]
--------------------------------------------------
DELETE /_xpack/security/oauth2/token
{
  "username" : "myuser"
}
--------------------------------------------------
// NOTCONSOLE

Finally, the following example invalidates all access tokens and refresh tokens for the user `myuser` in
 the `saml1` realm immediately:

[source,js]
--------------------------------------------------
DELETE /_xpack/security/oauth2/token
{
  "username" : "myuser",
  "realm_name" : "saml1"
}
--------------------------------------------------
// NOTCONSOLE

A successful call returns a JSON structure that contains the number of tokens that were invalidated, the number
of tokens that had already been invalidated, and potentially a list of errors encountered while invalidating
specific tokens.

[source,js]
--------------------------------------------------
{
  "invalidated_tokens":9, <1>
  "previously_invalidated_tokens":15, <2>
  "error_count":2, <3>
  "error_details":[ <4>
    {
      "type":"exception",
      "reason":"Elasticsearch exception [type=exception, reason=foo]",
      "caused_by":{
        "type":"exception",
        "reason":"Elasticsearch exception [type=illegal_argument_exception, reason=bar]"
      }
    },
    {
      "type":"exception",
      "reason":"Elasticsearch exception [type=exception, reason=boo]",
      "caused_by":{
        "type":"exception",
        "reason":"Elasticsearch exception [type=illegal_argument_exception, reason=far]"
      }
    }
  ]
}
--------------------------------------------------
// NOTCONSOLE

<1> The number of the tokens that were invalidated as part of this request.
<2> The number of tokens that were already invalidated.
<3> The number of errors that were encountered when invalidating the tokens.
<4> Details about these errors. This field is not present in the response when
    `error_count` is 0.
