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Showing content from http://developer.mozilla.org/en-US/docs/Web/API/BackgroundFetchManager/getIds below:

BackgroundFetchManager: getIds() method - Web APIs

BackgroundFetchManager: getIds() method

Limited availability

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

Note: This feature is available in Web Workers.

The getIds() method of the BackgroundFetchManager interface returns the IDs of all registered background fetches.

Syntax Parameters

None.

Return value

A Promise that resolves with an Array of strings.

Exceptions

None.

Examples

The following examples shows how to retrieve the IDs of all registered background fetches. With an active service worker, use the ServiceWorkerRegistration.backgroundFetch property to access the BackgroundFetchManager object and call its getIds() method.

navigator.serviceWorker.ready.then(async (swReg) => {
  const ids = await swReg.backgroundFetch.getIds();
});
Specifications Browser compatibility

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