DownloadItem type of the
downloads API represents a downloaded file.
Values of this type are objects. They contain the following properties:
integerrepresenting a unique identifier for the downloaded file that is persistent across browser sessions.
stringrepresenting the absolute URL from which the file was downloaded.
stringrepresenting the downloaded file's referrer.
stringrepresenting the file's absolute local path.
booleanthat indicates whether the download is recorded in the browser's history (
false), or not (
- A string indicating whether this download is thought to be safe or known to be suspicious. Its possible values are defined in the
stringrepresenting the downloaded file's MIME type.
string(in ISO 8601 format) representing the number of milliseconds between the UNIX epoch and when this download began.
string(in ISO 8601 format) representing the number of milliseconds between the UNIX epoch and when this download ended.
string(in ISO 8601 format) representing the estimated number of milliseconds between the UNIX epoch and when this download is estimated to be completed.
stringIndicating whether the download is progressing, interrupted, or complete. Possible values are defined in the
booleanindicating whether the download is paused, i.e. if the download has stopped reading data from the host but has kept the connection open. If so, the value is
booleanindicating whether a currently-interrupted (e.g. paused) download can be resumed from the point where it was interrupted (
true), or not (
- A string indicating why a download was interrupted. Possible values are defined in the
numberrepresenting the number of bytes received so far from the host during the download; this does not take file compression into consideration.
numberindicating the total number of bytes in the file being downloaded. This does not take file compression into consideration. A value of -1 here means that the total number of bytes is unknown.
numberindicating the total number of bytes in the whole file, after decompression. A value of -1 here means that the total file size is unknown.
booleanindicating whether a downloaded file still exists (
true) or not (
false). This information might be out-of-date, as browsers do not automatically watch for file removal — to check whether a file exists, call the
downloads.search()method, filtering for the file in question.
stringrepresenting the ID of the add-on that triggered the download (if it was triggered by an add-on.) This does not change once set.
stringrepresenting the name of the add-on that triggered the download (if it was triggered by an add-on.) This may change if the add-on changes its name or the user changes their locale.
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
|Chrome||Edge||Firefox||Firefox for Android||Opera|
This API is based on Chromium's
Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.
// Copyright 2015 The Chromium Authors. All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.