The onCreated() event of the downloads API fires when a download begins, i.e. when downloads.download() is sucessfully invoked.
The listener is passed the downloads.DownloadItem object in question as a parameter.
Syntax
browser.downloads.onCreated.addListener(listener) browser.downloads.onCreated.removeListener(listener) browser.downloads.onCreated.hasListener(listener)
Events have three functions:
addListener(callback)- Adds a listener to this event.
removeListener(listener)- Stop listening to this event. The
listenerargument is the listener to remove. hasListener(listener)- Check whether a given
listeneris registered for this event. Returnstrueif it is listening,falseotherwise.
addListener syntax
Parameters
function-
A callback function that will be called when this event occurs. This function will be passed the following arguments:
downloadItem- The
downloads.DownloadItemobject in question.
Browser compatibility
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 | |
|---|---|---|---|---|---|
| Basic support | Yes | No | 48 | 48 | Yes |
Examples
Log the URL of items as they are downloaded:
function handleCreated(item) {
console.log(item.url);
}
browser.downloads.onCreated.addListener(handleCreated);
This API is based on Chromium's chrome.downloads API.
Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.
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