CanMakePaymentEvent: respondWith() 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 only available in Service Workers.

The respondWith() method of the CanMakePaymentEvent interface enables the service worker to respond appropriately to signal whether it is ready to handle payments.

Syntax

respondWith(response)

Parameters

response: A Promise that resolves with a boolean value to signal that it is ready to handle a payment request: (true), or not (false).

Return value

None (undefined).

Examples

self.addEventListener("canmakepayment", (e) => {
  e.respondWith(
    new Promise((resolve, reject) => {
      someAppSpecificLogic()
        .then((result) => {
          resolve(result);
        })
        .catch((error) => {
          reject(error);
        });
    }),
  );
});

Specifications

Specification
Payment Handler API # dom-canmakepaymentevent-respondwith