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PeriodicSyncManager: getTags() method

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

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 getTags() method of the PeriodicSyncManager interface returns a Promise that resolves with a list of String objects representing the tags that are currently registered for periodic syncing.

Syntax

getTags()

Parameters

None.

Return value

A Promise which resolves with a list of String objects representing tags that are currently registered for periodic syncing.

Exceptions

None.

Examples

The following example uses the getTags() method to check if a periodic sync task with a given tag is registered.

navigator.serviceWorker.ready.then((registration) => {
  registration.periodicSync.getTags().then((tags) => {
    if (tags.includes("get-latest-news")) skipDownloadingLatestNewsOnPageLoad();
  });
});

skipDownloadingLatestNewsOnPageLoad() is a developer defined function.

Specifications

Specification
Web Periodic Background Synchronization> # dom-periodicsyncmanager-gettags>

Browser compatibility

	Desktop					Mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet	WebView Android	WebView on iOS
`getTags`	80	80	No	67	No	80	No	57	No	13.0	No	No