Limited availability
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 CanMakePaymentEvent interface of the Payment Handler API is the event object for the canmakepayment event, fired on a payment app's service worker to check whether it is ready to handle a payment. Specifically, it is fired when the merchant website calls the PaymentRequest() constructor.
CanMakePaymentEvent() Experimental
Creates a new CanMakePaymentEvent object instance.
respondWith() Experimental
Enables the service worker to respond appropriately to signal whether it is ready to handle payments.
self.addEventListener("canmakepayment", (e) => {
e.respondWith(
new Promise((resolve, reject) => {
someAppSpecificLogic()
.then((result) => {
resolve(result);
})
.catch((error) => {
reject(error);
});
}),
);
});
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