Wikimore

This page is part of the MediaWiki Action API documentation.

Category:MediaWiki action API

MediaWiki version:

≥ 1.11

GET request to retrieve information about an image file or files.

This module can be used as a generator .

API documentation

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

prop=imageinfo (ii)

(main | query | imageinfo)

This module requires read rights.
Source: MediaWiki
License: GPL-2.0-or-later

Returns file information and upload history.

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

Specific parameters:

Other general parameters are available.

iiprop

Which file information to get:

timestamp: Adds timestamp for the uploaded version.
user: Adds the user who uploaded each file version. If the user has been revision deleted, a userhidden property will be returned.
userid: Add the ID of the user that uploaded each file version. If the user has been revision deleted, a userhidden property will be returned.
comment: Comment on the version. If the comment has been revision deleted, a commenthidden property will be returned.
parsedcomment: Parse the comment on the version. If the comment has been revision deleted, a commenthidden property will be returned.
canonicaltitle: Adds the canonical title of the file. If the file has been revision deleted, a filehidden property will be returned.
url: Gives URL to the file and the description page. If the file has been revision deleted, a filehidden property will be returned.
size: Adds the size of the file in bytes and the height, width and page count (if applicable).
dimensions: Alias for size.
sha1: Adds SHA-1 hash for the file. If the file has been revision deleted, a filehidden property will be returned.
mime: Adds MIME type of the file. If the file has been revision deleted, a filehidden property will be returned.
thumbmime: Adds MIME type of the image thumbnail (requires url and param iiurlwidth). If the file has been revision deleted, a filehidden property will be returned.
mediatype: Adds the media type of the file. If the file has been revision deleted, a filehidden property will be returned.
metadata: Lists Exif metadata for the version of the file. If the file has been revision deleted, a filehidden property will be returned.
commonmetadata: Lists file format generic metadata for the version of the file. If the file has been revision deleted, a filehidden property will be returned.
extmetadata: Lists formatted metadata combined from multiple sources. Results are HTML formatted. If the file has been revision deleted, a filehidden property will be returned.
archivename: Adds the filename of the archive version for non-latest versions. If the file has been revision deleted, a filehidden property will be returned.
bitdepth: Adds the bit depth of the version. If the file has been revision deleted, a filehidden property will be returned.
uploadwarning: Used by the Special:Upload page to get information about an existing file. Not intended for use outside MediaWiki core.
badfile: Adds whether the file is on the MediaWiki:Bad image list

Values (separate with | or alternative): archivename, badfile, bitdepth, canonicaltitle, comment, commonmetadata, dimensions, extmetadata, mediatype, metadata, mime, parsedcomment, sha1, size, thumbmime, timestamp, uploadwarning, url, user, userid

Default: timestamp|user

iilimit

How many file revisions to return per file.

Type: integer or max

The value must be between 1 and 500.

Default: 1

iistart

Timestamp to start listing from.

Type: timestamp (allowed formats)

iiend

Timestamp to stop listing at.

Type: timestamp (allowed formats)

iiurlwidth

If iiprop=url is set, a URL to an image scaled to this width will be returned. For performance reasons if this option is used, no more than 50 scaled images will be returned.

Type: integer

Default: -1

iiurlheight

Similar to iiurlwidth.

Type: integer

Default: -1

iimetadataversion

Version of metadata to use. If latest is specified, use latest version. Defaults to 1 for backwards compatibility.

Default: 1

iiextmetadatalanguage

What language to fetch extmetadata in. This affects both which translation to fetch, if multiple are available, as well as how things like numbers and various values are formatted.

Default: en

iiextmetadatamultilang

If translations for extmetadata property are available, fetch all of them.

Type: boolean (details)

iiextmetadatafilter

If specified and non-empty, only these keys will be returned for iiprop=extmetadata.

Separate values with | or alternative.

Maximum number of values is 50 (500 for clients that are allowed higher limits).

iiurlparam

A handler specific parameter string. For example, PDFs might use page15-100px. iiurlwidth must be used and be consistent with iiurlparam.

Default: (empty)

iibadfilecontexttitle

If badfilecontexttitleprop=badfile is set, this is the page title used when evaluating the MediaWiki:Bad image list

iicontinue

When more results are available, use this to continue. More detailed information on how to continue queries can be found on mediawiki.org.

iilocalonly

Look only for files in the local repository.

Type: boolean (details)

Examples:

Fetch information about the current version of File:Albert Einstein Head.jpg.: api.php?action=query&titles=File:Albert%20Einstein%20Head.jpg&prop=imageinfo [open in sandbox]
Fetch information about versions of File:Test.jpg from 2008 and later.: api.php?action=query&titles=File:Test.jpg&prop=imageinfo&iilimit=50&iiend=2007-12-31T23:59:59Z&iiprop=timestamp|user|url [open in sandbox]

Example

GET request

Get information about the file, File:Billy_Tipton.jpg

api.php?action=query&format=json&prop=imageinfo&titles=File:Billy_Tipton.jpg [try in ApiSandbox]

Response

Request URL:

{
    "batchcomplete": "",
    "query": {
        "normalized": [
            {
                "from": "File:Billy_Tipton.jpg",
                "to": "File:Billy Tipton.jpg"
            }
        ],
        "pages": {
            "36266497": {
                "pageid": 36266497,
                "ns": 6,
                "title": "File:Billy Tipton.jpg",
                "imagerepository": "local",
                "imageinfo": [
                    {
                        "timestamp": "2012-06-27T21:16:21Z",
                        "user": "Gobonobo"
                    }
                ]
            }
        }
    }
}

Sample code

Python

#This file is auto-generated. See modules.json and autogenerator.py for details

#!/usr/bin/python3

"""
    get_imageinfo.py

    MediaWiki API Demos
    Demo of `Imageinfo` module: Get information about an image file.

    MIT License
"""

import requests

S = requests.Session()

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

PARAMS = {
    "action": "query",
    "format": "json",
    "prop": "imageinfo",
    "titles": "File:Billy_Tipton.jpg"
}

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

PAGES = DATA["query"]["pages"]

for k, v in PAGES.items():
    print(v["title"] + " is uploaded by User:" + v["imageinfo"][0]["user"])

PHP

<?php

//This file is autogenerated. See modules.json and autogenerator.py for details

/*
    get_imageinfo.php

    MediaWiki API Demos
    Demo of `Imageinfo` module: Get information about an image file.

    MIT License
*/

$endPoint = "https://en.wikipedia.org/w/api.php";
$params = [
    "action" => "query",
    "format" => "json",
    "prop" => "imageinfo",
    "titles" => "File:Billy Tipton.jpg"
];

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

$ch = curl_init( $url );
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
$output = curl_exec( $ch );
curl_close( $ch );

$result = json_decode( $output, true );

foreach( $result["query"]["pages"] as $k => $v ) {
    echo( $v["title"] . " is uploaded by User:" . $v["imageinfo"][0]["user"] . "\n" );
}

JavaScript

//This file is autogenerated. See modules.json and autogenerator.py for details

/*
    get_imageinfo.js

    MediaWiki API Demos
    Demo of `Imageinfo` module: Get information about an image file.

    MIT License
*/

var url = "https://en.wikipedia.org/w/api.php"; 

var params = {
    action: "query",
    format: "json",
    prop: "imageinfo",
    titles: "File:Billy Tipton.jpg"
};

url = url + "?origin=*";
Object.keys(params).forEach(function(key){url += "&" + key + "=" + params[key];});

fetch(url)
    .then(function(response){return response.json();})
    .then(function(response) {
        var pages = response.query.pages;
        for (var p in pages) {
            console.log(pages[p].title + " is uploaded by User:" + pages[p].imageinfo[0].user);
        }
    })
    .catch(function(error){console.log(error);});

MediaWiki JS

// This file is autogenerated. See modules.json and autogenerator.py for details

/*
	get_imageinfo.js

	MediaWiki API Demos
	Demo of `Imageinfo` module: Get information about an image file.

	MIT License
*/

var params = {
		action: 'query',
		format: 'json',
		prop: 'imageinfo',
		titles: 'File:Billy Tipton.jpg'
	},
	api = new mw.Api();

api.get( params ).done( function ( data ) {
	var pages = data.query.pages,
		p;
	for ( p in pages ) {
		console.log( pages[ p ].title + ' is uploaded by User:' + pages[ p ].imageinfo[ 0 ].user );
	}
} );

Demo app(s)

API:Picture of the day viewer

Possible errors


Code	Info
invalid-title	Invalid title in `iibadfilecontexttitle` parameter.
invalidurlparam	Invalid value for `iiurlparam` (`name=value`).
urlparamnormal	Could not normalize image parameters for name.

Parameter history

v1.23: Introduced canonicaltitle, commonmetadata, iiextmetadatalanguage, iiextmetadatamultilang, iiextmetadatafilter
v1.22: Introduced uploadwarning
v1.20: Introduced iilocalonly
v1.18: Introduced iimetadataversion, iiurlparam
v1.17: Introduced userid, parsedcomment, thumbmime, extmetadata
v1.16: Introduced dimensions
v1.15: Introduced iicontinue
v1.14: Introduced bitdepth
v1.13: Introduced mime, archivename
v1.12: Deprecated iihistory
v1.12: Introduced iilimit, iistart, iiend, iiurlwidth, iiurlheight

Additional notes

Files uploaded to the Wikimedia Commons will appear to be missing when accessed from other MediaWiki wikis.

The timestamp from this module indicates the last time the image was modified.

Since T360589, it is no longer guaranteed that the thumbnail URL returned by the API matches the requested thumbnail width (iiurlwidth). The thumbnail, which will be fetched from a pregenerated list, is either of the same width or larger. This is not issue when the browser can do the resizing, but if you do require the exact size, you now need to access the appropriate thumbnail URL directly.