FetchLaterResult

Limited availability

The FetchLaterResult interface of the Fetch API is returned by the fetchLater() method after a deferred fetch has been created.

It contains a single activated property that indicates whether the deferred request has been sent out or not.

After a successful sending, the whole response is ignored — including body and headers — so the response of the deferred fetch is never returned to the FetchLaterResult interface.

Instance properties

• activated Read only Experimental
  • : A read-only boolean field that indicates whether the deferred request has been sent out. This is initially set to false and will then be updated by the browser once the deferred fetch has been sent.

Examples

Defer a POST request for around one minute and create a function to check if sent

const result = fetchLater("https://report.example.com", {
  method: "POST",
  body: JSON.stringify(myReport),
  activateAfter: 60000 /* 1 minute */,
});

function checkIfFetched() {
  return result.activated;
}

Specifications

Browser compatibility

See also

• Fetch API
• Using Deferred Fetch