API:Logout

This page is part of the MediaWiki Action API documentation.

MediaWiki version:

≥ 1.12

POST request to log out of account. The previously used GET request without token returns a warning and does NOT log out.

Logging out deletes the log in tokens and other browser cookies.

API documentation

The following documentation is the output of Special:ApiHelp/logout, automatically generated by the pre-release version of MediaWiki that is running on this site (MediaWiki.org).

action=logout

(main | logout)

This module requires write rights.
This module only accepts POST requests.
Source: MediaWiki
License: GPL-2.0-or-later

Log out and clear session data.

https://www.mediawiki.org/wiki/Special:MyLanguage/API:Logout

Specific parameters:

Other general parameters are available.

token: A "csrf" token retrieved from action=query&meta=tokens; This parameter is required.
checkuserclienthints: Client hints data supplied alongside requests to ApiLogout. For internal use only.

Example:

Log the current user out.: api.php?action=logout&token=123ABC [open in sandbox]

Example

POST request

Response

{

}

Sample code

Python

#!/usr/bin/python3

"""
    logout.py

    MediaWiki API Demos
    Demo of `Logout` module: Log out and clear session data.

    MIT License
"""

import requests

S = requests.Session()

URL = "https://en.wikipedia.org/w/api.php"

# Step 1: Retrieve login token first
PARAMS_0 = {
    'action':"query",
    'meta':"tokens",
    'type':"login",
    'format':"json"
}

R = S.get(url=URL, params=PARAMS_0)
DATA = R.json()

LOGIN_TOKEN = DATA['query']['tokens']['logintoken']

# Step 2: Send a POST request to login. Using the main account for login is not
# supported. Obtain credentials via Special:BotPasswords
# (https://www.mediawiki.org/wiki/Special:BotPasswords) for lgname & lgpassword

PARAMS_1 = {
    'action':"login",
    'lgname':"your_bot_username",
    'lgpassword':"your_bot_password",
    'lgtoken':LOGIN_TOKEN,
    'format':"json"
}

R = S.post(URL, data=PARAMS_1)
DATA = R.json()

# Step 3: GET request to fetch CSRF token
PARAMS_2 = {
    "action":"query",
    "meta":"tokens",
    "format":"json"
}

R = S.get(url=URL, params=PARAMS_2)
DATA = R.json()

CSRF_TOKEN = DATA['query']['tokens']['csrftoken']

# Step 4: Send a POST request to logout
PARAMS_3 = {
    "action": "logout",
    "token": CSRF_TOKEN,
    "format": "json"
}

R = S.post(URL, data=PARAMS_3)
DATA = R.json()

print(DATA)

PHP

<?php

/*
    logout.php

    MediaWiki API Demos
    Demo of `Logout` module: Log out and clear session data.
    MIT license
*/

$endPoint = "https://test.wikipedia.org/w/api.php";

$login_Token = getLoginToken(); // Step 1
loginRequest( $login_Token ); // Step 2
$csrf_Token = getCSRFToken(); // Step 3
logoutRequest( $csrf_Token ); // Step 4

// Step 1: GET request to fetch login token
function getLoginToken() {
	global $endPoint;

	$params1 = [
		"action" => "query",
		"meta" => "tokens",
		"type" => "login",
		"format" => "json"
	];

	$url = $endPoint . "?" . http_build_query( $params1 );

	$ch = curl_init( $url );
	curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
	curl_setopt( $ch, CURLOPT_COOKIEJAR, "cookie.txt" );
	curl_setopt( $ch, CURLOPT_COOKIEFILE, "cookie.txt" );

	$output = curl_exec( $ch );
	curl_close( $ch );

	$result = json_decode( $output, true );
	return $result["query"]["tokens"]["logintoken"];
}

// Step 2: POST request to log in. Use of main account for login is not
// supported. Obtain credentials via Special:BotPasswords
// (https://www.mediawiki.org/wiki/Special:BotPasswords) for lgname & lgpassword
function loginRequest( $logintoken ) {
	global $endPoint;

	$params2 = [
		"action" => "login",
		"lgname" => "bot_user_name",
		"lgpassword" => "bot_password",
		"lgtoken" => $logintoken,
		"format" => "json"
	];

	$ch = curl_init();

	curl_setopt( $ch, CURLOPT_URL, $endPoint );
	curl_setopt( $ch, CURLOPT_POST, true );
	curl_setopt( $ch, CURLOPT_POSTFIELDS, http_build_query( $params2 ) );
	curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
	curl_setopt( $ch, CURLOPT_COOKIEJAR, "cookie.txt" );
	curl_setopt( $ch, CURLOPT_COOKIEFILE, "cookie.txt" );

	$output = curl_exec( $ch );
	curl_close( $ch );

}

// Step 3: GET request to fetch CSRF token
function getCSRFToken() {
	global $endPoint;

	$params3 = [
		"action" => "query",
		"meta" => "tokens",
		"format" => "json"
	];

	$url = $endPoint . "?" . http_build_query( $params3 );

	$ch = curl_init( $url );

	curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
	curl_setopt( $ch, CURLOPT_COOKIEJAR, "cookie.txt" );
	curl_setopt( $ch, CURLOPT_COOKIEFILE, "cookie.txt" );

	$output = curl_exec( $ch );
	curl_close( $ch );

	$result = json_decode( $output, true );
	return $result["query"]["tokens"]["csrftoken"];
}

// Step 4: POST request to logout
function logoutRequest( $csrftoken ) {
	global $endPoint;

	$params4 = [
		"action" => "logout",
		"token" => $csrftoken,
		"format" => "json"
	];

	$ch = curl_init();

	curl_setopt( $ch, CURLOPT_URL, $endPoint );
	curl_setopt( $ch, CURLOPT_POST, true );
	curl_setopt( $ch, CURLOPT_POSTFIELDS, http_build_query( $params4 ) );
	curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
	curl_setopt( $ch, CURLOPT_COOKIEJAR, "cookie.txt" );
	curl_setopt( $ch, CURLOPT_COOKIEFILE, "cookie.txt" );

	$output = curl_exec( $ch );
	curl_close( $ch );

	echo ( $output );
}

JavaScript

/*
    logout.js

    MediaWiki API Demos
    Demo of `Logout` module: Log out and clear session data.

    MIT License
*/

var request = require('request').defaults({jar: true}),
    url = "https://en.wikipedia.org/w/api.php";

// Step 1: GET request to fetch login token
function getLoginToken() {
    var params_0 = {
        action: "query",
        meta: "tokens",
        type: "login",
        format: "json"
    };

    request.get({ url: url, qs: params_0 }, function (error, res, body) {
        if (error) {
            return;
        }
        var data = JSON.parse(body);
        loginRequest(data.query.tokens.logintoken);
    });
}

// Step 2: POST request to log in.
// Use of main account for login is not
// supported. Obtain credentials via Special:BotPasswords
// (https://www.mediawiki.org/wiki/Special:BotPasswords) for lgname & lgpassword
function loginRequest(login_token) {
    var params_1 = {
        action: "login",
        lgname: "your_bot_username",
        lgpassword: "your_bot_password",
        lgtoken: login_token,
        format: "json"
    };

    request.post({ url: url, form: params_1 }, function (error, res, body) {
        if (error) {
            return;
        }
        getCsrfToken();
    });
}

// Step 3: GET request to fetch CSRF token
function getCsrfToken() {
    var params_2 = {
        action: "query",
        meta: "tokens",
        format: "json"
    };

    request.get({ url: url, qs: params_2 }, function(error, res, body) {
        if (error) {
            return;
        }
        var data = JSON.parse(body);
        logoutRequest(data.query.tokens.csrftoken);
    });
}

// Step 4: Send a POST request to logout
function logoutRequest(csrf_token) {
    var params_3 = {
        action: "logout",
        token: csrf_token,
        format: "json"
    };

    request.post({ url: url, form: params_3 }, function (error, res, body) {
        if (error) {
            return;
        }
        console.log(body);
    });
}

// Start From Step 1
getLoginToken();

MediaWiki JS

/*
	logout.js
	MediaWiki API Demos
	Demo of `Logout` module: Log out and clear session data.
	MIT License
*/

var params = {
		action: 'logout',
		format: 'json'
	},
	api = new mw.Api();

api.postWithToken( 'csrf', params ).done( function ( data ) {
	console.log( data );
} );

Parameter history

v1.34: Introduced token

Additional notes

All Wikimedia wikis with MediaWiki 1.34.0-wmf.3 require a CSRF token (same as used for editing) for using this module (mailarchive:mediawiki-api-announce/2019-April/000145.html).

External links

phab:T25227 — Use token when logging out
phab:T222626 — Turn logout link into a POST API call with refresh