The BackgroundFetchManager
interface of the Background Fetch API is a map where the keys are background fetch IDs and the values are BackgroundFetchRegistration
objects.
The BackgroundFetchManager
interface of the Background Fetch API is a map where the keys are background fetch IDs and the values are BackgroundFetchRegistration
objects.
None.
fetch()
Returns a Promise
that resolves with a BackgroundFetchRegistration
object for a supplied array of URLs and Request
objects.
get()
Returns a Promise
that resolves with the BackgroundFetchRegistration
associated with the provided id
or undefined
if the id
is not found.
getIDs()
Returns the IDs of all registered background fetches.
The example below shows how to get an instance of BackgroundFetchManager
from a ServiceWorkerRegistration
object and calls fetch()
to download a video in the background.
navigator.serviceWorker.ready.then(async (swReg) => { const bgFetch = await swReg.backgroundFetch.fetch('my-fetch', ['/ep-5.mp3', 'ep-5-artwork.jpg'], { title: 'Episode 5: Interesting things.', icons: [{ sizes: '300x300', src: '/ep-5-icon.png', type: 'image/png', }], downloadTotal: 60 * 1024 * 1024, }); });
Specification |
---|
Background Fetch # background-fetch-manager |
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
BackgroundFetchManager |
74 |
79 |
No |
No |
62 |
No |
No |
74 |
No |
53 |
No |
11.0 |
fetch |
74 |
79 |
No |
No |
62 |
No |
No |
74 |
No |
53 |
No |
11.0 |
get |
74 |
79 |
No |
No |
62 |
No |
No |
74 |
No |
53 |
No |
11.0 |
getIds |
74 |
79 |
No |
No |
62 |
No |
No |
74 |
No |
53 |
No |
11.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/BackgroundFetchManager